| Class Number |
Class Name |
No. of Patents |
| 436/826 |
Additives (e.g., buffers, diluents, preservatives) |
242 |
| 436/807 |
Apparatus included in process claim (e.g., physical support structures, etc.) |
575 |
| 436/808 |
Automated or kit |
855 |
| 436/809 |
Multifield plates or multicontainer arrays |
484 |
| 436/810 |
Tube, bottle, or dipstick |
736 |
| 436/43 |
Automated chemical analysis |
933 |
| 436/50 |
Condition or time responsive |
296 |
| 436/51 |
With automated titrator |
62 |
| 436/45 |
Utilizing a centrifuge or compartmented rotor |
323 |
| 436/44 |
Utilizing a moving indicator strip or tape |
111 |
| 436/52 |
With a continuously flowing sample or carrier stream |
417 |
| 436/53 |
With formation of a segmented stream |
183 |
| 436/54 |
With aspirator of claimed structure |
233 |
| 436/47 |
With conveyance of sample along a test line in a container or rack |
499 |
| 436/48 |
With step of insertion or removal from test line |
293 |
| 436/49 |
With treatment or replacement of aspirator element (e.g., cleaning, etc.) |
248 |
| 436/46 |
With sample on test slide |
301 |
| 436/63 |
Biological cellular material tested |
2036 |
| 436/501 |
Biospecific ligand binding assay |
3133 |
| 436/503 |
Utilizing isolate of tissue or organ as binding agent |
430 |
| 436/504 |
Radioactive label |
315 |
| 436/505 |
B12 or folate |
77 |
| 436/68 |
Blood gas (e.g., oxygen, carbon dioxide, blood, ph, etc.) |
210 |
| 436/900 |
Breath testing |
72 |
| 436/64 |
Cancer |
805 |
| 436/145 |
Carbon containing |
104 |
| 436/146 |
In an aqueous solution (e.g., toc, etc.) |
108 |
| 436/69 |
Clotting or clotting factor level tests |
479 |
| 436/8 |
Composition for standardization, calibration, simulation, stabilization, preparation or preservation; processes of use in preparation for chemical testing |
698 |
| 436/12 |
Bilirubin or uric acid standard or control |
47 |
| 436/11 |
Blood gas standard or control |
96 |
| 436/16 |
Blood serum or blood plasma standard or control |
237 |
| 436/14 |
Glucose, ketone, nitrate standard or control |
88 |
| 436/19 |
Inorganic standards or controls |
68 |
| 436/13 |
Lipid, cholesterol, or triglyceride standard or control |
116 |
| 436/10 |
Particle count or volume standard or control (e.g., platelet count standards, etc.) |
352 |
| 436/17 |
Preparation composition (e.g., lysing or precipitation, etc.) |
361 |
| 436/18 |
Preservative, buffer, anticoagulant or diluent |
452 |
| 436/15 |
Protein or peptide standard or control (e.g., hemoglobin, etc.) |
211 |
| 436/9 |
Simulative of a gaseous composition |
57 |
| 436/55 |
Condition responsive control |
437 |
| | Cross-reference art collections 800 through 829 relate to antigen-antibody or binding protein tests. | |
| | Cross-reference art collections 900 through 910 relate to chemical analysis | |
| 436/39 |
Determination of water |
97 |
| 436/41 |
By use of a cobalt, copper or nickel containing reagent |
12 |
| 436/42 |
By use of a karl fischer reagent |
50 |
| 436/40 |
In petroleum oil, hydrocarbon oil or organic fluid |
40 |
| 436/903 |
Diazo reactions |
53 |
| 436/902 |
Dosimeter |
51 |
| 436/901 |
Drugs of abuse (e.g., narcotics, amphetamine, etc.) |
125 |
| 436/806 |
Electrical property or magnetic property |
446 |
| 436/801 |
Electron dense compounds (e.g., ferritin, etc.) |
46 |
| 436/182 |
Element or inorganic compound |
83 |
| 436/906 |
Fertility tests |
57 |
| 436/907 |
Fetal lung maturity |
8 |
| 436/800 |
Fluorescent dyes (e.g., rhodamine, etc.) |
814 |
| 436/20 |
Food or dairy products |
134 |
| 436/22 |
Dairy product |
33 |
| 436/23 |
Milk or butter fat |
58 |
| 436/21 |
Meat or eggs |
44 |
| 436/24 |
Wine or alcoholic beverages |
30 |
| 436/506 |
For preexisting immune complex or auto-immune disease |
307 |
| 436/508 |
Antinuclear (e.g., dna, etc.) |
91 |
| 436/507 |
Immune complex |
173 |
| 436/509 |
Rheumatoid factors |
105 |
| 436/25 |
Geochemical, geological, or geothermal exploration |
66 |
| 436/26 |
For metallic ores |
24 |
| 436/29 |
For petroleum oils or carbonaceous minerals |
105 |
| 436/30 |
Removing and testing drilling mud or fluid |
47 |
| 436/31 |
Removing and testing solid samples |
66 |
| 436/32 |
Analyzing evolved gas |
42 |
| 436/33 |
Evolving gas by acidification |
6 |
| 436/28 |
In situ testing |
60 |
| 436/27 |
Using chemical tracers |
86 |
| 436/908 |
Gravimetric analysis |
20 |
| 436/124 |
Halogen containing |
157 |
| 436/126 |
Carbon containing compound (e.g., vinylchloride, etc.) |
88 |
| 436/125 |
In aqueous solution |
120 |
| 436/66 |
Hemoglobin, myoglobin, or occult blood |
487 |
| 436/67 |
Glycosylated hemoglobin |
122 |
| 436/820 |
Hepatitis associated antigens and antibodies |
195 |
| 436/91 |
Heterocyclic carbon compound (i.e., o, s, n, se, te, as only ring hetero atom) |
61 |
| 436/92 |
Diverse hetero atoms in same or different rings (e.g., alkaloids, opiates, etc.) |
93 |
| 436/96 |
Hetero-n |
102 |
| 436/97 |
Bile pigment |
109 |
| 436/98 |
Plural nitrogen in the same ring (e.g., barbituates, creatinine, etc.) |
109 |
| 436/99 |
Uric acid |
29 |
| 436/93 |
Hetero-o (e.g., ascorbic acid, etc.) |
137 |
| 436/94 |
Saccharide (e.g., dna, etc.) |
834 |
| 436/95 |
Glucose |
259 |
| 436/139 |
Hydrocarbon |
200 |
| 436/141 |
Acyclic (e.g., methane, octane, isoparaffin, etc.) |
90 |
| 436/142 |
Unsaturated (e.g., ethylene, diene, etc.) |
61 |
| 436/140 |
Aromatic |
95 |
| 436/143 |
Total hydrocarbon, flammability, combustibility (e.g., air-fuel mixture, etc.) |
76 |
| 436/144 |
Hydrogen, per se |
94 |
| 436/822 |
Identified hapten |
149 |
| 436/510 |
Immunochemical pregnancy determination |
199 |
| 436/823 |
Immunogenic carrier or carrier per se |
272 |
| 436/824 |
Immunological separation techniques |
370 |
| 436/161 |
Including chromatography |
902 |
| 436/162 |
Utilizing paper or thin layer plate |
119 |
| 436/174 |
Including sample preparation |
1130 |
| 436/175 |
Digestion or removing interfering materials |
593 |
| 436/179 |
Dilution |
240 |
| 436/181 |
Gaseous sample or with change of physical state |
320 |
| 436/177 |
Liberation or purification of sample or separation of material from a sample (e.g., filtering, centrifuging, etc.) |
1201 |
| 436/178 |
Including use of a solid sorbent, semipermeable membrane, or liquid extraction |
976 |
| 436/176 |
Stabilizing or preserving |
223 |
| 436/180 |
Volumetric liquid transfer |
1309 |
| 436/163 |
Including titration or ph determination |
301 |
| 436/57 |
Including use of radioactive properties |
181 |
| 436/58 |
Dosage determination of high energy radiation, (e.g., use of an x-ray dosimeter, etc.) |
51 |
| 436/59 |
Including pyrolysis of radioactive material |
19 |
| 436/100 |
Inorganic acid or base (e.g., hcl, sulfuric acid, etc.) |
67 |
| 436/101 |
Halogen containing |
42 |
| 436/102 |
Sulfur containing |
26 |
| 436/518 |
Involving an insoluble carrier for immobilizing immunochemicals |
4123 |
| 436/519 |
Carrier is a biological cell or cell fragment |
362 |
| 436/520 |
Red blood cell |
240 |
| 436/521 |
Fixation or stabilization of red blood cells |
57 |
| 436/522 |
Lysis of red blood cell membrane |
76 |
| 436/524 |
Carrier is inorganic |
1029 |
| 436/527 |
Glass or silica |
916 |
| 436/525 |
Metal or metal coated |
677 |
| 436/526 |
Magnetic |
656 |
| 436/528 |
Carrier is organic |
1042 |
| 436/535 |
Antigen or antibody entrapped within the carrier (e.g., gel, hollow fiber, etc.) |
306 |
| 436/531 |
Carrier is synthetic resin |
1309 |
| 436/532 |
Antigen or antibody attached to a carrier via bridging agent |
579 |
| 436/533 |
Carrier is water suspendible particles (e.g., latex, etc.) |
587 |
| 436/534 |
Carrier is water suspendible particles |
671 |
| 436/529 |
Polysaccharide, carrier (e.g., dextran, etc.) |
459 |
| 436/530 |
Cellulose or derivative |
643 |
| 436/523 |
Carrier is particulate and the particles are of intentionally different sizes or impregnated differently with the immunochemicals |
417 |
| 436/512 |
Involving antibody fragments |
431 |
| 436/821 |
Involving complement factors or complement systems |
117 |
| 436/514 |
Involving diffusion or migration of antigen or antibody |
733 |
| 436/515 |
Through a gel (e.g., ouchterlony technique, etc.) |
113 |
| 436/516 |
Immunoelectrophoresis |
206 |
| 436/513 |
Involving iga, igd, ige, or igm |
435 |
| 436/536 |
Involving immune complex formed in liquid phase |
1108 |
| 436/538 |
Separation of immune complex from unbound antigen or antibody |
522 |
| 436/541 |
Absorbent column, particles or resin strip |
430 |
| 436/539 |
Involving precipitating reagent |
195 |
| 436/540 |
Double or second antibody |
249 |
| 436/542 |
Involving radioactive labeling |
375 |
| 436/537 |
Signal modification or steric inhibition |
367 |
| 436/517 |
Involving kinetic measurement of antigen-antibody reaction |
252 |
| 436/543 |
Involving producing or treating antigen or hapten |
652 |
| 436/544 |
Producing labeled antigens |
372 |
| 436/546 |
Fluorescent label |
732 |
| 436/545 |
Radioactive label |
350 |
| 436/547 |
Involving production or treatment of antibody |
776 |
| 436/548 |
Monoclonal antibody |
1236 |
| 436/910 |
Iron-binding capacity of blood |
15 |
| 436/827 |
Lectins |
137 |
| 436/71 |
Lipids, triglycerides, cholesterol, or lipoproteins |
487 |
| 436/829 |
Liposomes (e.g., encapsulation, etc.) |
397 |
| 436/60 |
Lubricant, grease, mineral oil, hydrocarbon oil product, or fats or lipids for oxidation (e.g., breakdown products or contamination, etc.) |
199 |
| 436/61 |
Acidity, basicity or neutralization number |
30 |
| 436/148 |
Measurement includes change in volume or pressure |
90 |
| 436/147 |
Measurement includes temperature change of the material being analyzed (e.g., calorimetry, etc.) |
232 |
| 436/149 |
Measurement of electrical or magnetic property or thermal conductivity |
481 |
| 436/151 |
By means of a solid body in contact with a fluid |
308 |
| 436/152 |
Solid body contains a combustion catalyst |
64 |
| 436/150 |
Of a liquid |
385 |
| 436/153 |
Of an ionized gas |
72 |
| 436/154 |
Flame ionization |
58 |
| 436/73 |
Metal or metal containing |
325 |
| 436/80 |
Cu, ag, au |
149 |
| 436/79 |
Li, na, k, rb, cs, fr, be, mg, ca, sr, ba, ra |
289 |
| 436/84 |
Mn, te, re, fe, ru, os, co, rh, ir, ni, pd, pt |
199 |
| 436/76 |
Organometallic compound determined |
36 |
| 436/77 |
Ge, sn, pb |
53 |
| 436/75 |
Oxide or gas content of metal (e.g., determination of dissolved gases, etc.) |
28 |
| 436/78 |
Presence of a component of steel |
14 |
| 436/74 |
Present in biological fluids (e.g., blood, urine, etc.) |
299 |
| 436/83 |
Ti, zr, hf, va, nb, ta, cr, mo, w |
88 |
| 436/81 |
Zn, cd, hg, sc, y, or actinides, or lanthanides |
162 |
| 436/82 |
Lanthanide or actinide |
78 |
| 436/183 |
Miscellaneous |
132 |
| 436/819 |
Multifunctional antigen or antibody |
104 |
| 436/909 |
Nephelometry |
35 |
| 436/106 |
Nitrogen containing |
220 |
| 436/111 |
Amine and quaternary ammonium |
226 |
| 436/113 |
Ammonia |
100 |
| 436/112 |
Tertiary amine |
35 |
| 436/109 |
Cyanide or isocyanide |
49 |
| 436/107 |
N-nitroso containing (e.g., nitrosamine, etc.) |
44 |
| 436/110 |
Nitrite or nitrate |
89 |
| 436/116 |
Oxides of nitrogen |
124 |
| 436/118 |
Both nitrogen oxide and dioxide |
58 |
| 436/117 |
Only nitrogen dioxide |
50 |
| 436/114 |
Total nitrogen determined |
48 |
| 436/115 |
As part of an elemental analysis |
30 |
| 436/108 |
Urea or blood urea nitrogen |
74 |
| 436/173 |
Nuclear magnetic resonance, electron spin resonance or other spin effects or mass spectrometry |
971 |
| 436/805 |
Optical property |
1158 |
| 436/164 |
Optical result |
2060 |
| 436/167 |
Including gas absorption in liquid or solid |
155 |
| 436/168 |
Liquid sorbent |
54 |
| 436/166 |
Including reagent preparation |
584 |
| 436/171 |
Spectrum analysis (e.g., flame photometry, etc.) |
342 |
| 436/165 |
With claimed manipulation of container to effect reaction or use of container of claimed optical structure |
757 |
| 436/172 |
With fluorescence or luminescence |
2111 |
| 436/169 |
With reagent in absorbent or bibulous substrate |
948 |
| 436/170 |
Plural superposed layers |
312 |
| 436/904 |
Oxidation - reduction indicators |
192 |
| 436/127 |
Oxygen containing |
160 |
| 436/128 |
Carbonyl, ether, aldehyde or ketone containing |
183 |
| 436/129 |
Carboxylic acid |
105 |
| 436/130 |
Formaldehyde or acetone |
52 |
| 436/131 |
Hydroxyl containing |
125 |
| 436/132 |
Ethanol |
108 |
| 436/133 |
Inorganic carbon compounds |
152 |
| 436/134 |
Carbon monoxide only |
91 |
| 436/136 |
Molecular oxygen |
134 |
| 436/138 |
Dissolved or trace oxygen or oxygen content of a sealed environment |
90 |
| 436/137 |
Fuel/air mixture or exhaust gas analysis |
77 |
| 436/135 |
Ozone or peroxide |
130 |
| 436/62 |
Oxygen demand (e.g., bod, tod, cod, etc.) |
73 |
| 436/86 |
Peptide, protein or amino acid |
945 |
| 436/89 |
Amino acid or sequencing procedure |
290 |
| 436/90 |
Alpha or beta amino acid |
63 |
| 436/87 |
Glycoproteins (e.g., hormone, etc.) |
232 |
| 436/88 |
Albumin |
109 |
| 436/103 |
Phosphorus containing |
113 |
| 436/105 |
Of inorganic phosphorus compound in body fluid |
25 |
| 436/104 |
Organic (e.g., chemical warfare agents, insecticides, etc.) |
102 |
| 436/905 |
Photochemical activation of reactions |
53 |
| 436/65 |
Pregnancy or ovulation |
154 |
| 436/825 |
Pretreatment for removal of interfering factors from sample |
394 |
| 436/2 |
Process or composition for determination of physical state or property by means including a chemical reaction |
245 |
| 436/7 |
By thermoparticulating composition |
58 |
| 436/6 |
Corrosion resistance or power |
188 |
| 436/3 |
Leak detection |
88 |
| 436/4 |
Of crystal or crystalline material |
83 |
| 436/5 |
Surface area, porosity, imperfection, or alteration |
105 |
| 436/1 |
Process or composition for sterility or package integrity test |
193 |
| 436/828 |
Protein a |
120 |
| 436/802 |
Protein-bacteriophage conjugates |
8 |
| 436/38 |
Purity of steam or chemically inert gas |
21 |
| 436/155 |
Pyrolysis, combustion, or elevated temperature conversion |
216 |
| 436/160 |
Combustion with oxygen containing gas |
119 |
| 436/158 |
Dividing or separating a sample stream |
66 |
| 436/156 |
Explosibility |
31 |
| 436/157 |
Multiple stages of heating or heating at multiple temperatures or application of temperature gradient |
87 |
| 436/159 |
With catalyst or accelerator |
153 |
| 436/804 |
Radioisotope (e.g., radioimmunoassay, etc.) |
595 |
| 436/34 |
Rate of reaction determination |
178 |
| | Related to chemical testing | |
| 436/70 |
Sedimentation rate or hematocrit |
125 |
| 436/72 |
Silicon containing |
69 |
| 436/803 |
Stabe free radicals (e.g., spin immunoassay, etc.) |
24 |
| 436/119 |
Sulfur containing |
114 |
| 436/120 |
Organic or sulfhydryl containing (e.g., mercaptan, hydrogen, sulfide, etc.) |
110 |
| 436/121 |
Only hydrogen sulfide |
71 |
| 436/122 |
Sulfur dioxide |
84 |
| 436/123 |
Total or elemental sulfur |
57 |
| 436/85 |
Synthetic or natural resin |
120 |
| 436/815 |
Test for named compound or class of compounds |
638 |
| 436/816 |
Alkaloids, amphetamines, and barbiturates |
176 |
| 436/817 |
Steroids or hormones |
374 |
| 436/818 |
Human chorionic gonadotropin |
173 |
| 436/811 |
Test for named disease, body condition or organ function |
840 |
| 436/813 |
Cancer |
531 |
| 436/812 |
Infectious mononucleosis |
20 |
| 436/814 |
Pregnancy |
167 |
| 436/37 |
Testing of catalyst |
190 |
| 436/500 |
Thyroid hormone tests (e.g., t3, t4, tbg, tsh, etc.) |
323 |
| 436/56 |
Tracers or tags |
386 |
| 436/35 |
Using activated specie |
37 |
| 436/36 |
With use of condensation nuclei |
18 |