| Class Number |
Class Name |
No. of Patents |
| 252/184 |
Absorptive, or bindive, and chemically yieldive (e.g., ion exchanger) |
276 |
| 252/DIG.18 |
Activation-platinum |
2 |
| 252/193 |
Ammonia, alkali or base, bindant containing |
41 |
| 252/365 |
Anti-ingestible or denatured |
12 |
| 252/366 |
Alcohol type |
9 |
| 252/62.3R |
Barrier layer device compositions |
72 |
| 252/62.3C |
Binary alloy or carbide; e.g., al, in, lic |
25 |
| 252/62.3E |
Free element containing |
59 |
| 252/62.3S |
Selenium or tellurium |
12 |
| 252/62.3GA |
Group iii element containing binary compound; e.g., ga, as |
121 |
| 252/62.3V |
Group vi element-containing |
30 |
| 252/62.3BT |
Containing group iv element and oxygen; e.g., barium, titanium iii oxide |
79 |
| 252/62.3ZB |
Groups ii and v elements containing binary compund; e.g., zinc, bismuth |
16 |
| 252/62.3ZT |
Groups ii and vi elements containing binary compound; e.g., zn, te |
46 |
| 252/62.3Q |
Organic |
43 |
| 252/62.3T |
Thermoelectric |
70 |
| 252/183.11 |
Chemically interactive reactants (vis-a-vis) |
164 |
| 252/183.14 |
Inorganic reactants only |
53 |
| 252/183.15 |
Calcium carbide precursors |
1 |
| 252/183.16 |
Contains carbonate or bicarbonate |
6 |
| 252/183.13 |
Organic reactant admixed with inorganic reactant |
93 |
| 252/183.12 |
With stabilizer or inhibitor |
59 |
| 252/700 |
Chemiluminescent |
199 |
| 252/189 |
Co, s, negative element, or acid, bindant containing |
182 |
| 252/192 |
Alkali-metal or alkali-metal compound containing |
125 |
| 252/191 |
Basis-iron containing |
46 |
| 252/190 |
With absorbents |
125 |
| 252/182.11 |
Compositions containing a single chemical reactant or plural noninteractive chemical reactants; i.e., not vis-a-vis |
52 |
| 252/182.32 |
Inorganic reactant other than sulfur containing |
62 |
| 252/182.35 |
Reactant contains aluminum or phosphorus |
27 |
| 252/182.33 |
Reactant contains heavy metal |
49 |
| 252/182.34 |
Reactant contains nitrogen |
33 |
| 252/182.12 |
Organic reactant |
148 |
| 252/182.13 |
For subsequent solid polymer treatment or preparation; e.g., crosslinking, grafting, curing, hardening, vulcanizing, etc. |
140 |
| 252/182.14 |
Reactant contains element other than c, h, o, or n |
83 |
| 252/182.15 |
Halogen |
76 |
| 252/182.16 |
Bromine or iodine |
30 |
| 252/182.17 |
Sulfur |
106 |
| 252/182.18 |
Reactant contains ethylenic group |
134 |
| 252/182.19 |
Cyclic anhydride moiety |
11 |
| 252/182.2 |
Reactant contains isocyante (-n=c=o) or blocked isocyanate group |
281 |
| 252/182.21 |
Two or more reactants containing isocyanate or blocked isocyanate groups |
153 |
| 252/182.22 |
Urethane (-n-c(=o)-o-c-) group |
212 |
| 252/182.23 |
Reactant contains oxygen |
109 |
| 252/182.28 |
Reactant contains carboxylic acid group or derivative thereof |
134 |
| 252/182.24 |
Reactant contains plural hydroxyl groups |
312 |
| 252/182.27 |
Reactant contains ether linkage |
283 |
| 252/182.26 |
Reactant contains nitrogen |
202 |
| 252/182.25 |
Three or more reactants containing plural hydroxyl groups |
120 |
| 252/182.31 |
Reactant contains phenolic, phenolic ether, or inorganic phenolate group |
29 |
| 252/182.3 |
Reactant contains phosphorus, silicon, or sulfur atom, or contains metal-to-carbon bond |
78 |
| 252/182.29 |
With stabilizer or inhibitor |
147 |
| 252/88.2 |
Compositions for coating or impregnating a substrate used for collecting fine particles by adherence, or processes of preparing (e.g., for impregnating dusting cloths, dust filters, etc.) |
32 |
| 252/8.91 |
Compositions for enhancing the appearance of consumer textile goods (other than cleaning compositions or auxiliary compositions for cleaning), or processes of preparing (e.g., antistatic or wrinkle-removing spray for garments, etc.) |
108 |
| 252/567 |
Defined liquid dielectric dispersed in defined web or sheet |
44 |
| 252/950 |
Doping agent source material |
45 |
| 252/951 |
For vapor transport |
47 |
| 252/8.61 |
Durable finishes for textile materials, or processes of preparing (e.g., crease resistant, moisture absorbent, antistatic, etc., finishes) |
342 |
| 252/8.62 |
Oil or water repellent or soil resistant or retardant |
295 |
| 252/8.63 |
Textile softening |
187 |
| 252/88.1 |
Dust suppressants for bulk materials, or processes of preparing (e.g., for consolidating dust in coal mines, controlling soil erosion, etc.) |
105 |
| 252/500 |
Electrically conductive or emissive compositions |
1673 |
| 252/516 |
Carbide containing |
192 |
| 252/502 |
Elemental carbon containing |
472 |
| 252/504 |
With carbide |
80 |
| 252/503 |
With free metal |
222 |
| 252/506 |
With metal compound |
275 |
| 252/508 |
Aluminum compound |
106 |
| 252/509 |
Magnesium, alkaline earth metal, or rare earth metal compound |
97 |
| 252/507 |
Titanium or zirconium compound |
109 |
| 252/510 |
With organic component |
338 |
| 252/511 |
Resin, rubber, or derivative thereof containing |
1229 |
| 252/505 |
With radioactive material |
5 |
| 252/512 |
Free metal containing |
1112 |
| 252/513 |
Iron group metal (iron, cobalt, nickel) |
498 |
| 252/514 |
Noble metal (gold, silver, ruthenium, rhodium, palladium, osmium, iridium, platinum) |
978 |
| 252/515 |
Tungsten |
105 |
| 252/501.1 |
Light sensitive |
240 |
| 252/518.1 |
Metal compound containing |
457 |
| 252/521.4 |
Boron containing or with boron compound |
54 |
| 252/519.1 |
Compound viewed as composition (i.e., wherein atoms or molecules in a chemical formula are not present as whole small integer values or cannot be multiplied by a single-digit factor to yield integer values) |
322 |
| 252/519.13 |
Bismuth, ruthenium, or iridium containing |
116 |
| 252/519.15 |
Four diverse metals containing |
132 |
| 252/519.14 |
Sulfur, tellurium, selenium, nitrogen, phosphorus, or boron containing |
52 |
| 252/519.12 |
Titanium containing |
104 |
| 252/521.5 |
Halogen, carbon, phosphorus, or nitrogen containing |
107 |
| 252/521.2 |
Iron, cobalt, or nickel compound |
167 |
| 252/519.2 |
Organometallic (e.g., soap, complex, etc.) |
147 |
| 252/519.21 |
With additional organic compound |
156 |
| 252/521.1 |
Rare earth metal compound |
156 |
| 252/521.3 |
Silicon containing or with silicon compound |
192 |
| 252/520.3 |
Silver, gold, or platinum compound |
78 |
| 252/519.4 |
Sulfur, selenium, or tellurium containing |
74 |
| 252/520.1 |
Tin compound |
172 |
| 252/520.2 |
Titanium or zirconium compound |
162 |
| 252/520.21 |
Additional diverse metal containing |
131 |
| 252/520.22 |
Boron, silicon, phosphorus, nitrogen, hydrogen, carbon, or halogen containing |
61 |
| 252/520.5 |
Tungsten or yttrium compound |
94 |
| 252/520.4 |
Vanadium compound |
53 |
| 252/521.6 |
With nonmetal compound containing halogen, nitrogen, phosphorus, or sulfur |
17 |
| 252/519.3 |
With organic compound |
175 |
| 252/519.31 |
The organic compound contains silicon |
65 |
| 252/519.32 |
The organic compound is a natural resin, protein, lignin, carbohydrate, or derivative thereof |
74 |
| 252/519.33 |
The organic compound is a polymer |
295 |
| 252/519.34 |
The metal compound contains halogen, sulfur, selenium, phosphorus, arsenic, boron, or nitrogen |
177 |
| 252/519.5 |
Zinc compound |
124 |
| 252/519.51 |
Additional diverse metal containing |
49 |
| 252/519.54 |
Silicon containing or with compound of bismuth or silicon |
90 |
| 252/519.52 |
With boron compound |
61 |
| 252/519.53 |
With halogen compound |
11 |
| 252/517 |
Radioactive material containing |
36 |
| 252/62.2 |
Electrolytes for electrical devices (e.g., rectifier, condenser) |
720 |
| 252/79.1 |
Etching or brightening compositions |
999 |
| 252/79.5 |
Alkali metal hydroxide containing |
245 |
| 252/79.2 |
Inorganic acid containing |
505 |
| 252/79.3 |
Fluorine compound containing |
444 |
| 252/79.4 |
With organic material |
569 |
| 252/378R |
Exfoliated or intumesced |
125 |
| 252/378P |
Perlite |
41 |
| 252/601 |
Fire retarding |
283 |
| 252/605 |
Containing gas |
22 |
| 252/610 |
Dispersion or colloidal system |
124 |
| 252/611 |
For dispersion or collodial system |
34 |
| 252/603 |
For living matter |
46 |
| 252/609 |
For solid synthetic polymer and reactants thereof |
497 |
| 252/608 |
For textile (i.e., woven material) |
192 |
| 252/607 |
For wood or cellulosic material other than textile |
222 |
| 252/602 |
Having disparate function |
137 |
| 252/606 |
Intumescent |
150 |
| 252/604 |
Material physically quantified |
56 |
| 252/2 |
Fire-extinguishing |
236 |
| 252/3 |
Foam or gas phase containing |
187 |
| 252/8.05 |
Foam-stabilizant or colloid-stabilizant containing |
133 |
| 252/4 |
Gas generative, chemically |
39 |
| 252/7 |
Carbonates or ammonium salts containing or pyrolytic |
89 |
| 252/5 |
Dry, combustion type |
52 |
| 252/6 |
Low temperature chemically interreactive |
10 |
| 252/6.5 |
Foam-stabilizant or colloid-stabilizant containing |
16 |
| 252/8 |
Volatile or gas charged liquids containing |
113 |
| 252/570 |
Fluent dielectric |
151 |
| 252/574 |
B-, p-, s-, se-, or te-containing |
36 |
| 252/571 |
Gaseous or gas-containing |
57 |
| 252/581 |
Halogenated polycyclic compound-containing |
33 |
| 252/572 |
Metal- or insoluble component-containing; e.g., slurry, grease, etc. |
167 |
| 252/575 |
N-containing |
27 |
| 252/576 |
O in n compound |
15 |
| 252/577 |
Nitro or nitroso compound |
0 |
| 252/578 |
O-containing |
62 |
| 252/579 |
Carboxylic acid ester |
68 |
| 252/580 |
Halogen-containing |
30 |
| 252/573 |
Si-containing |
75 |
| 252/70 |
Frost-preventing, ice-thawing, thermostatic, thermophoric, or cryogenic |
722 |
| 252/372 |
Gaseous compositions |
138 |
| 252/373 |
Carbon-oxide and hydrogen containing |
1031 |
| 252/374 |
Nitrogen and hydrogen containing |
42 |
| 252/377 |
From elementary nitrogen and hydrogen only or purification |
18 |
| 252/375 |
Nitrogen from air or elementary nitrogen only and hydrogen from compounds |
23 |
| 252/376 |
Hydrogen from hydrocarbons |
65 |
| 252/181.1 |
Getters or gas or vapor generating materials for electric lamps, electric space discharge devices, and similar devices |
70 |
| 252/181.5 |
Gaseous getters |
14 |
| 252/181.6 |
Metal or metal compound containing |
105 |
| 252/181.7 |
Magnesium, alkali-metal, or alkaline-earth metal |
47 |
| 252/181.2 |
Plural getter and/or gas or vapor generating materials |
22 |
| 252/181.3 |
Reactive compositions |
27 |
| 252/181.4 |
Containing magnesium, alkali-metal and alkaline-earth metal, or compound thereof |
28 |
| 252/182.1 |
Having utility as a reactive material in an electrochemical cell; e.g., battery, etc. |
387 |
| 252/62 |
Heat or sound insulating |
382 |
| 252/71 |
Heat-exchange, low-freezing or pour point, or high boiling compositions |
215 |
| 252/73 |
Organic components |
457 |
| 252/79 |
Carboxylic organic compounds containing |
278 |
| 252/74 |
Metal compounds or inorganic components (except water) |
217 |
| 252/76 |
Carboxylic organic compounds containing |
221 |
| 252/75 |
Organic compounds of nonmetals other than c, h, and o |
391 |
| 252/77 |
Organic compounds of nonmetals other than c, h, and o |
335 |
| 252/78.1 |
Organic compounds of nonmetals other than c, h, o, and n |
215 |
| 252/78.5 |
Organic p containing compounds |
187 |
| 252/78.3 |
Organic si containing compounds |
206 |
| 252/72 |
With leak-stopping agents |
53 |
| 252/963 |
Humidity or moisture indicators |
19 |
| 252/194 |
Humidostatic, water removive, bindive, or emissive |
318 |
| 252/492 |
Incandescent mantle compositions |
10 |
| 252/301.36 |
Inorganic luminescent compositions with organic nonluminescent material |
224 |
| 252/301.4R |
Inorganic luminescent compositions |
902 |
| 252/301.4H |
Compositions containing halogen; e.g., halides and oxyhalides |
413 |
| 252/301.4F |
Group iv element containing |
464 |
| 252/301.4P |
Phosphorus containing |
317 |
| 252/301.4S |
Sulfur containing |
318 |
| 252/301.5 |
Tungsten containing |
106 |
| 252/301.6R |
Zinc or cadmium containing |
249 |
| 252/301.6F |
Group iv element containing |
189 |
| 252/301.6P |
Phosphorus containing |
135 |
| 252/301.6S |
Sulfur containing |
275 |
| 252/964 |
Leak detection |
40 |
| 252/8.57 |
Leather or fur treating (other than cleaning compositions or auxiliary compositions for cleaning) |
208 |
| 252/582 |
Light transmission modifying compositions |
653 |
| 252/586 |
Displaying color change |
424 |
| 252/587 |
Infrared |
277 |
| 252/584 |
Inorganic crystalline solid |
156 |
| 252/583 |
Modification caused by energy other than light |
231 |
| 252/585 |
Producing polarized light |
162 |
| 252/588 |
Ultraviolet |
100 |
| 252/589 |
Organic material |
247 |
| 252/299.01 |
Liquid crystal compositions |
1802 |
| 252/299.7 |
Cholesteric liquid crystal composition containing a sterol derivative |
147 |
| 252/299.3 |
Containing charge-transfer agents |
55 |
| 252/299.2 |
Containing dopant salt |
89 |
| 252/299.5 |
Containing nonchiral additive having no specified mesophase |
614 |
| 252/299.4 |
Containing nonchiral aligning agents |
161 |
| 252/299.6 |
Containing nonsteryl liquid crystalline compound of specified structure |
369 |
| 252/299.64 |
Aryl ester of aryl acid having three benzene rings |
387 |
| 252/299.65 |
Benzene rings linked by direct bond |
506 |
| 252/299.66 |
Benzene rings linked by direct bond |
1137 |
| 252/299.68 |
Including benzene rings bonded through azo, azoxy, or azomethine linkage |
168 |
| 252/299.63 |
Including fully saturated ring |
1246 |
| 252/299.62 |
Including fused or bridged rings |
542 |
| 252/299.61 |
Including heterocyclic ring |
1258 |
| 252/299.67 |
Phenyl benzoate derivative |
907 |
| 252/299.1 |
Containing pleochroic dye |
316 |
| 252/62.51R |
Magnetic |
274 |
| 252/62.51C |
Chromium or chromium compound containing |
45 |
| 252/62.52 |
Flaw detection or magnetic clutch |
183 |
| 252/62.55 |
Free metal or alloy containing |
346 |
| 252/62.56 |
Iron-oxygen compound containing |
546 |
| 252/62.58 |
With boron, aluminum, thallium, or indium |
148 |
| 252/62.6 |
With group i metal |
149 |
| 252/62.61 |
Lithium |
56 |
| 252/62.62 |
With group ii metal or lead |
299 |
| 252/62.63 |
Calcium, barium, strontium, or lead |
285 |
| 252/62.64 |
Magnesium |
122 |
| 252/62.57 |
With scandium, yttrium, gallium, rare earth, or actinide |
199 |
| 252/62.59 |
With titanium, zirconium, silicon, hafnium, germanium, or tin |
285 |
| 252/62.53 |
With wax, bitumen, resin, or gum |
148 |
| 252/62.54 |
Synthetic resin |
958 |
| 252/1 |
Miscellaneous (e.g., artificial snow) |
230 |
| 252/408.1 |
Nonreactive analytical, testing, or indicating compositions |
497 |
| 252/301.16 |
Organic luminescent material containing compositions |
553 |
| 252/301.19 |
Inspection penetrant compositions |
64 |
| 252/301.34 |
Natural resin, cellulose, or derivatives containing |
63 |
| 252/301.21 |
Optical brightening compositions |
201 |
| 252/301.25 |
Azine containing |
40 |
| 252/301.27 |
Azole containing |
65 |
| 252/301.28 |
Thiazoles or oxazoles |
52 |
| 252/301.29 |
Tri- or tetrazoles |
42 |
| 252/301.31 |
Five-membered ring having four carbon atoms and one nitrogen atom |
21 |
| 252/301.32 |
Hetero-s-atom or hetero-o-atom containing |
69 |
| 252/301.22 |
Heterocyclic compounds having an intercyclic acyclic methine linkage |
93 |
| 252/301.24 |
Thiazoles or oxazoles |
63 |
| 252/301.23 |
Triazines |
94 |
| 252/301.26 |
Six-membered ring having one hetero-n-atom |
84 |
| 252/301.17 |
Scintillating or lasing compositions |
155 |
| 252/301.18 |
Heavy metal containing |
40 |
| 252/301.35 |
Synthetic resin containing |
323 |
| 252/301.33 |
With inorganic luminescent material |
57 |
| 252/186.1 |
Oxidative bleachant, oxidant containing, or generative |
162 |
| 252/186.25 |
Composition containing a stabilizer or a product in the form of a surface-modified, impregnated, encapsulated, or surface-coated article; or process of producing said composition |
187 |
| 252/186.36 |
Contains free halogen or oxy-halogen acid type |
88 |
| 252/186.37 |
Contains alkaline earth metal |
53 |
| 252/186.33 |
Contains group viib or group viii metal or compound thereof |
119 |
| 252/186.34 |
Contains organohalogen compound as oxidant |
44 |
| 252/186.35 |
Chloroisocyanurate |
72 |
| 252/186.27 |
Inorganic peroxide |
185 |
| 252/186.32 |
Contains group ia metal peroxide |
70 |
| 252/186.28 |
Contains hydrogen peroxide |
129 |
| 252/186.29 |
With organic material |
166 |
| 252/186.3 |
Contains perborate |
68 |
| 252/186.31 |
With organic material |
109 |
| 252/186.26 |
Organic peroxide |
241 |
| 252/186.2 |
Composition containing two or more solid materials with defined physical dimensions; e.g., surface areas, volumes, etc., or process of producing said composition |
47 |
| 252/186.38 |
Contains activator admixed with inorganic peroxide |
357 |
| 252/186.39 |
Contains heterocyclic compound |
177 |
| 252/186.4 |
Oxygen heterocycle |
33 |
| 252/186.41 |
Hydrogen peroxide |
129 |
| 252/186.24 |
Contains elemental material devoid of water |
20 |
| 252/186.44 |
Contains inorganic nitrogen containing compound |
37 |
| 252/186.43 |
Contains inorganic peroxide |
220 |
| 252/186.42 |
Contains organic peroxide |
215 |
| 252/187.1 |
Free halogen or oxy-halogen acid type |
79 |
| 252/187.31 |
Chlorate or perchlorate |
43 |
| 252/187.21 |
Chlorine dioxide or monoxide |
85 |
| 252/187.22 |
With elemental chlorine |
4 |
| 252/187.23 |
Chlorite |
97 |
| 252/187.24 |
Hypochlorite |
92 |
| 252/187.25 |
Alkali metal hypochlorite |
126 |
| 252/187.26 |
Sodium |
122 |
| 252/187.27 |
Alkaline earth metal hypochlorite |
56 |
| 252/187.28 |
Calcium |
53 |
| 252/187.29 |
With alkali metal compound |
39 |
| 252/187.3 |
With alkaline earth metal compound |
27 |
| 252/187.32 |
Hypochlorous acid |
11 |
| 252/187.2 |
Oxidant contains halogen other than chlorine |
40 |
| 252/187.33 |
Oxidant contains n-cl bond |
38 |
| 252/187.34 |
Chloroisocyanurate |
69 |
| 252/186.21 |
Plural oxidants |
85 |
| 252/186.22 |
Contains plural peroxides |
52 |
| 252/186.23 |
Organic peroxide |
58 |
| 252/60 |
Physical separation agents |
108 |
| 252/61 |
Froth-flotation or differential adherence |
370 |
| 252/62.9R |
Piezoelectric |
300 |
| 252/62.9PZ |
Lead, zirconium, titanium or compound thereof containing |
254 |
| 252/185 |
Plumbiferous sulphur bindant or modifiant containing |
5 |
| 252/380 |
Preservative agents |
106 |
| 252/381 |
Anti-caking, separative or protective coatings or zones |
33 |
| 252/382 |
Foams, liquids, or fluids |
53 |
| 252/385 |
Inorganic compound or element containing |
87 |
| 252/383 |
Organic and inorganic matter containing |
121 |
| 252/384 |
Organic compound containing |
155 |
| 252/387 |
Anti-corrosion |
294 |
| 252/388 |
Organic compound containing |
118 |
| 252/390 |
Amine, amide, azo, or nitrogen-base radical containing |
380 |
| 252/392 |
Oxygen organic compound containing |
542 |
| 252/391 |
Sulphur organic compound containing |
250 |
| 252/389.1 |
Component inorganic or organic comprising element other than c,h,o,n,s, and halogen |
93 |
| 252/389.62 |
Alkali metal or nh4+ containing |
159 |
| 252/389.4 |
Boron containing |
42 |
| 252/389.41 |
Organo boron |
26 |
| 252/389.5 |
Chromium containing |
30 |
| 252/389.61 |
Group iia metal containing |
103 |
| 252/389.51 |
Lead containing |
11 |
| 252/389.54 |
Molybdenum, arsenic, antimony, vanadium, bismuth, tungsten, selenium, or tellurium containing |
103 |
| 252/389.53 |
Nickel, iron, cobalt, copper, manganese, mercury, or cadmium containing |
81 |
| 252/389.2 |
Phosphorus containing |
185 |
| 252/389.21 |
Nitrogen and/or sulfur in phosphorus compound |
49 |
| 252/389.22 |
Pentavalent p, except h(n+2)pno(3n+1) |
149 |
| 252/389.23 |
Pentavalent p, except h(n+2)pno(3n+1) |
128 |
| 252/389.24 |
Trivalent p (e.g., phosphorus acid, phosphites, etc.) |
45 |
| 252/389.3 |
Silicon containing |
60 |
| 252/389.31 |
Organo silicon |
53 |
| 252/389.32 |
Nitrogen containing (e.g., amino, etc.) |
21 |
| 252/389.52 |
Zinc or aluminium containing |
101 |
| 252/394 |
Nitrogen organic compound containing |
277 |
| 252/396 |
Oxygen organic compound containing |
311 |
| 252/393 |
Phenol or quinone radical containing |
89 |
| 252/395 |
Sulphur organic compound containing |
157 |
| 252/397 |
Anti-oxidants or chemical change inhibitants |
142 |
| 252/399 |
Organic compound containing |
107 |
| 252/400.62 |
Alkali metal or nh4+ containing |
51 |
| 252/401 |
Amine, amide, azo, or nitrogen-base radical containing |
317 |
| 252/403 |
Oxygen organic compound containing |
436 |
| 252/402 |
Sulphur organic compound containing |
215 |
| 252/400.1 |
Component inorganic or organic comprising element other than c,h,o,n,s, and halogen |
115 |
| 252/400.4 |
Boron containing |
20 |
| 252/400.41 |
Organo boron |
22 |
| 252/400.5 |
Chromium containing |
14 |
| 252/400.51 |
Lead containing |
30 |
| 252/400.54 |
Molybdenum, arsenic, antimony, vanadium, bismuth, tungsten, selenium, or tellurium containing |
54 |
| 252/400.53 |
Nickel, iron, cobalt, copper, manganese, mercury, or cadmium containing |
84 |
| 252/400.2 |
Phosphorus containing |
100 |
| 252/400.21 |
Nitrogen or sulfur in phosphorus compound |
112 |
| 252/400.22 |
Pentavalent p, but not fully oxygenated |
39 |
| 252/400.23 |
Pentavalent p, but not fully oxygenated |
56 |
| 252/400.24 |
Trivalent p (e.g., phosphorous acid, phosphites, etc.) |
135 |
| 252/400.3 |
Silicon containing |
23 |
| 252/400.31 |
Organo silicon |
40 |
| 252/400.52 |
Zinc or aluminium containing |
85 |
| 252/400.61 |
Group iia metal containing |
65 |
| 252/405 |
Nitrogen organic compound containing |
188 |
| 252/407 |
Oxygen organic compound containing |
285 |
| 252/404 |
Phenol or quinone radical containing |
331 |
| 252/406 |
Sulphur organic compound containing |
185 |
| 252/398 |
Plant or animal matters of unknown compositions |
37 |
| 252/600 |
Radiation sensitive |
214 |
| 252/625 |
Radioactive compositions |
98 |
| 252/644 |
As a source of radiation or heat |
42 |
| 252/645 |
For tracing, tagging, or testing |
87 |
| 252/634 |
In form of sol solution or gel |
31 |
| 252/635 |
Including production of solid particles by chemical reaction |
61 |
| 252/646 |
Luminescent |
31 |
| 252/647 |
Laser |
8 |
| 252/636 |
Nuclear reactor fuel |
71 |
| 252/642 |
Actinide carbides only |
4 |
| 252/637 |
Actinide having nonactinide component |
20 |
| 252/639 |
Carbon containing component |
35 |
| 252/640 |
Free metal or metal compound component |
24 |
| 252/638 |
Oxide component |
44 |
| 252/641 |
Actinide nitrides only |
7 |
| 252/643 |
Actinide oxides only |
67 |
| 252/188.1 |
Reductive bleachant, deoxidant, reductant, or generative |
72 |
| 252/188.28 |
Deoxidant or oxygen scavenging |
292 |
| 252/188.26 |
Hydride containing |
29 |
| 252/188.27 |
Contains al-h bond |
7 |
| 252/188.25 |
Hydrogen generating |
47 |
| 252/188.2 |
Sulfur containing reductant, bleachant, deoxidant, or generative |
44 |
| 252/188.21 |
Sulfite |
39 |
| 252/188.22 |
Hydrosulfite (dithionite) |
32 |
| 252/188.23 |
With organic additive |
21 |
| 252/188.24 |
Contains nitrogen |
13 |
| 252/965 |
Retrospective product identification (e.g., tags and tracers, etc.) |
21 |
| 252/367.1 |
Soaps (i.e., alkali-metal salts of water-insoluble fatty acids or of rosin acids) |
22 |
| 252/363.5 |
Solids with solution or dispersion aids |
283 |
| 252/364 |
Solvents |
746 |
| 252/961 |
Stress or contact indicators |
5 |
| 252/960 |
Surface flaw detecting compositions |
24 |
| 252/962 |
Temperature or thermal history |
101 |
| 252/8.81 |
Textile processing aid compositions, or processes of preparing (e.g., lubricants or antistatic agents for fiber, yarn, fabric, etc.) |
186 |
| 252/8.85 |
For textile materials consisting wholly or in part of animal hair fibers (e.g., wool, etc.) |
34 |
| 252/8.84 |
For textile materials consisting wholly or in part of noncellulosic synthetic fibers (e.g., spin finish for nylon, polyester, acrylic, etc., fibers; lubricants for blends thereof with diverse fibers, etc.) |
257 |
| 252/8.86 |
For textile materials consisting wholly or in part of silk or cellulose- based fibers (e.g., cotton; artificial silk, such as rayon, cellulose acetate, etc., or blends thereof; silk soaking compositions; etc.) |
71 |
| 252/8.82 |
For tire cord yarn, elastomeric filaments, or biologically innocuous or absorbable fibers (e.g., spandex™, textiles used in food packaging, absorbable surgical sutures, etc.) |
50 |
| 252/8.83 |
Sizing agents (e.g., for weaving yarn, etc.) |
84 |
| 252/67 |
Vaporization, or expansion, refrigeration or heat or energy exchange |
696 |
| 252/69 |
With low-volatile solvent or absorbent |
158 |
| 252/68 |
With lubricants, or warning, stabilizing or anti-corrosion agents or persistent gases |
491 |
| 252/175 |
Water-softening or purifying or scale-inhibiting agents |
345 |
| 252/178 |
Deoxidant or free-metal containing |
54 |
| 252/176 |
Packages or heterogeneous arrangements |
48 |
| 252/180 |
Plant or organic material containing |
859 |
| 252/181 |
With inorganic matter other than alkali-metal hydroxides and carbonates and water |
484 |
| 252/179 |
Water-insoluble base-exchange agent containing |
188 |
| 252/478 |
X-ray or neutron shield |
125 |
