| Class Number |
Class Name |
No. of Patents |
| 162/DIG.5 |
Alpha cellulose |
3 |
| 162/232 |
Apparatus |
32 |
| 162/272 |
Apparatus repair, cleaning or conditioning |
247 |
| 162/274 |
Of porous or foraminous member (e.g., felt or mold) |
104 |
| 162/275 |
Means applying fluid |
85 |
| 162/279 |
And suction means |
30 |
| 162/277 |
Reciprocating |
13 |
| 162/278 |
With suction means |
16 |
| 162/276 |
To cylinder |
15 |
| 162/273 |
Wire changing and/or tensioning |
98 |
| 162/252 |
Automatic control |
189 |
| 162/255 |
Of lead strip former and/or break sensing |
53 |
| 162/256 |
Of mold movement |
18 |
| 162/257 |
Transverse movement of wire |
15 |
| 162/253 |
Of plural operations |
87 |
| 162/260 |
Of product cutting device |
10 |
| 162/258 |
Of stock consistency |
103 |
| 162/259 |
Of stock feed to forming device |
132 |
| 162/254 |
Of stock working device |
43 |
| 162/381 |
Combined |
22 |
| 162/415 |
Compressor |
1 |
| 162/416 |
Configured die (non-planar) |
6 |
| 162/233 |
Digester |
18 |
| 162/238 |
Automatic control |
71 |
| 162/246 |
Charging and/or discharging means (including blow pits) |
151 |
| 162/247 |
Target, impact, explosion |
10 |
| 162/242 |
Combined |
44 |
| 162/237 |
Continuous |
91 |
| 162/248 |
Forced circulation or percolation of fluid only |
45 |
| 162/249 |
With heating |
38 |
| 162/250 |
Heating means |
30 |
| 162/241 |
Plural |
28 |
| 162/245 |
Removable basket or retaining means |
7 |
| 162/251 |
Strainers |
114 |
| 162/234 |
With mechanical defibering means |
21 |
| 162/235 |
Concurrent |
2 |
| 162/236 |
Continuous |
18 |
| 162/243 |
With pulp agitating or circulating means |
90 |
| 162/244 |
Rotating digester |
1 |
| 162/239 |
With recovery means |
40 |
| 162/240 |
With incinerator or evaporator |
16 |
| 162/262 |
Electric controls or systems |
100 |
| 162/270 |
Flexing, bending, straightening or decurling means |
16 |
| 162/271 |
Sheet or web |
95 |
| 162/382 |
Foraminous forming mold for discrete articles (pulp molding) |
35 |
| 162/387 |
Accretion from bulk (i.e., immersed mold) |
14 |
| 162/388 |
Means moving mold through, into or out of slurry |
18 |
| 162/390 |
Plural and/or compartmented slurry container |
10 |
| 162/393 |
Reciprocating carrier |
3 |
| 162/394 |
With compressor |
2 |
| 162/389 |
Relatively moving or separate mold and suction backup |
9 |
| 162/391 |
Rotary or swinging carrier |
8 |
| 162/392 |
With compressor |
3 |
| 162/395 |
With compressor |
3 |
| 162/410 |
Article ejecting |
6 |
| 162/384 |
Centrifugal |
4 |
| 162/383 |
Differing areas of porosity or of suction on single mold surface (including masking) |
15 |
| 162/411 |
Dipping molds, per se |
10 |
| 162/407 |
Mold charging means |
3 |
| 162/409 |
Plural discrete areas of mold |
5 |
| 162/408 |
Pressure charging |
4 |
| 162/396 |
Press felting (i.e., pressure member acting on pulp on mold) |
20 |
| 162/406 |
About foraminous core |
2 |
| 162/403 |
Contracting matrix |
0 |
| 162/404 |
About foraminous core |
2 |
| 162/405 |
Expanding and/or contracting core |
4 |
| 162/401 |
Flexible diaphragm |
6 |
| 162/402 |
About foraminous core |
2 |
| 162/399 |
Plate or sheet type |
6 |
| 162/400 |
With cores (e.g., molding of apertured plates) |
3 |
| 162/397 |
Plural molds (cavities) |
3 |
| 162/398 |
Plate or sheet type (i.e., opposed flat platens) |
3 |
| 162/386 |
With handle or hand grip |
2 |
| 162/385 |
With moving slurry supply container |
2 |
| 162/263 |
Measuring, testing, inspecting, indicating or illuminating |
358 |
| 162/288 |
Molding and burnishing means |
4 |
| 162/267 |
Molding pulp and non-pulp insert or preform |
1 |
| 162/268 |
Running or indefinite length work |
9 |
| 162/289 |
Running or indefinite length product forming and/or treating means |
71 |
| 162/295 |
Concave molding surface in longitudinal or transverse section |
2 |
| 162/357 |
Cylinder molds, per se |
42 |
| 162/348 |
Flexible endless band type mold (e.g., fourdrinier) |
206 |
| 162/349 |
Concurrently moving back up |
6 |
| 162/353 |
Mask, deckle, or apron |
37 |
| 162/351 |
Means retarding or controlling drainage through mold |
75 |
| 162/352 |
Wire bottom scrappers or deflectors |
198 |
| 162/354 |
Table structure |
38 |
| 162/355 |
Vibrating or shaking (e.g., shake frames) |
17 |
| 162/356 |
Perpendicular to plane of wire |
7 |
| 162/350 |
Variable slope |
7 |
| 162/296 |
Irregular or configured molding surface (e.g., corrugated) |
24 |
| 162/315 |
Means directing stock into contact with molding surface |
17 |
| 162/317 |
Confined stock stream on forming surface (e.g., pressure forming) |
45 |
| 162/318 |
Cylinder mold with endless forming belt about |
18 |
| 162/319 |
Superposed or lateral stock pool |
3 |
| 162/336 |
Flow box, slice, and/or approach flow |
235 |
| 162/339 |
Closed to atmosphere |
28 |
| 162/340 |
Air cushion at above atmospheric pressure |
22 |
| 162/337 |
Recirculation skimming or excess stock take-off |
20 |
| 162/344 |
Slice |
135 |
| 162/347 |
Flexible or pivoted |
101 |
| 162/345 |
Plural, longitudinally spaced |
9 |
| 162/346 |
Width adjustment |
18 |
| 162/338 |
Transversely crossing inlet into flow box |
17 |
| 162/341 |
Vibratile or moving member treating stock |
17 |
| 162/342 |
Immersed rotary member (e.g., rectifier roll) |
14 |
| 162/343 |
With vanes or pulp stream dividing means |
222 |
| 162/323 |
Immersion vat type (e.g., cylinder machine vat) |
20 |
| 162/327 |
Baffles diverting or directing flow against cylinder mold |
6 |
| 162/328 |
Concentric with cylinder |
2 |
| 162/329 |
Adjustable to or from cylinder |
10 |
| 162/330 |
Fluid level control |
3 |
| 162/334 |
Mask, deckle or apron |
10 |
| 162/332 |
Mold hanging |
0 |
| 162/333 |
Centerless |
1 |
| 162/331 |
Side seals |
4 |
| 162/326 |
Stock applied at plural points on mold periphery |
2 |
| 162/325 |
Stock directed transversely of mold direction |
2 |
| 162/324 |
Stock flow direction reversing means |
2 |
| 162/335 |
With drain or suction means, for white water |
10 |
| 162/316 |
On to under surface only of mold |
1 |
| 162/320 |
Superposed or lateral stock pool type |
2 |
| 162/321 |
Cylinder mold |
9 |
| 162/322 |
With diverse non-pulp material inlet |
26 |
| 162/292 |
Means flinging or projecting stock against mold |
8 |
| 162/306 |
Means removing web product from molding surface |
152 |
| 162/307 |
Blow off acting through mold |
26 |
| 162/308 |
Means treating stock on molding surface |
32 |
| 162/309 |
Irregular treating member or acting non-uniformly across web product |
6 |
| 162/310 |
Fluid jet or suction means (e.g., shower deckle) |
20 |
| 162/312 |
Solid treating member |
13 |
| 162/313 |
Moving |
5 |
| 162/314 |
Rotary |
24 |
| 162/311 |
Submerged in supply |
6 |
| 162/294 |
Mold intermittently moving relative to supply |
0 |
| 162/290 |
Molding and heat exchange means |
96 |
| 162/305 |
Molds with subsequent separate pressing means |
76 |
| 162/291 |
Moving impermeable member applying stock to mold |
1 |
| 162/300 |
Plural molds or plural spaced areas of application on a single mold |
155 |
| 162/301 |
Common vat or stock feed |
249 |
| 162/302 |
Tangent cylinder molds |
3 |
| 162/303 |
Molds converge to unit web |
39 |
| 162/304 |
Webs united on common carrier (e.g., felt) |
43 |
| 162/298 |
Plural separate streams of stock applied to mold |
12 |
| 162/299 |
Longitudinally spaced points of application |
23 |
| 162/297 |
Pneumatic pressure or vacuum means acting directly on stock on mold surface |
27 |
| 162/358.1 |
Press and felt |
199 |
| 162/358.3 |
Extended nip press |
314 |
| 162/358.5 |
With heating means |
69 |
| 162/358.4 |
With impermeable belt structure or impermeable belt composition |
146 |
| 162/360.2 |
Plural sequential presses |
117 |
| 162/360.3 |
Having three or more coacting rolls (e.g., compact press, etc.) |
131 |
| 162/358.2 |
With felt structure or felt composition |
258 |
| 162/359.1 |
With separate heated drying means |
152 |
| 162/293 |
Product slides relative to molding surface (e.g., extrusion molding) |
4 |
| 162/361 |
Solid means acting on formed web |
211 |
| 162/362 |
Marking or embossing |
64 |
| 162/363 |
Suction devices |
114 |
| 162/366 |
Adjustable width |
15 |
| 162/365 |
Reciprocating |
4 |
| 162/373 |
Roller face (suction not through rollers) |
11 |
| 162/364 |
Systems |
63 |
| 162/367 |
Traveling suction face |
17 |
| 162/368 |
Rotary pervious cylinder |
52 |
| 162/372 |
Shell structure |
32 |
| 162/369 |
With non-rotating internal suction box |
29 |
| 162/371 |
Box carried seals |
30 |
| 162/370 |
Plural suction areas |
39 |
| 162/374 |
Wear face structures and materials |
125 |
| 162/380 |
Slurry supply conditioning or condition maintaining |
92 |
| 162/280 |
Web creping or crinkling type |
50 |
| 162/281 |
Cylinder and doctor |
151 |
| 162/282 |
Circumferentially grooved cylinder |
8 |
| 162/264 |
White water or broke recovery, recirculation or treatment |
89 |
| 162/261 |
With beating, refining, and/or disintegrating means |
115 |
| 162/265 |
With coating or impregnating means (including printing) |
51 |
| 162/266 |
Acting on product on mold |
14 |
| 162/286 |
With cutting, scoring, perforating or tearing |
98 |
| 162/287 |
With folding, rolling or twisting means |
3 |
| 162/375 |
With heat exchange means |
64 |
| 162/377 |
Heated die |
0 |
| 162/378 |
Contacting work on forming mold |
2 |
| 162/379 |
Plural successive heated dies |
2 |
| 162/376 |
Heated foraminous forming mold |
2 |
| 162/269 |
With product stacking or piling means |
4 |
| 162/283 |
With product winding or reeling means |
38 |
| 162/284 |
Tube winding type |
2 |
| 162/285 |
With tube cutting or slitting means |
0 |
| 162/DIG.2 |
Chip soaking |
11 |
| 162/DIG.8 |
Chlorine-containing liquid regeneration |
45 |
| 162/901 |
Impermeable belts for extended nip press |
131 |
| 162/DIG.6 |
Moisture and basic weight |
51 |
| 162/903 |
Paper forming member (e.g., fourdrinier, sheet forming member, etc.) |
230 |
| 162/900 |
Papermaking press felts |
275 |
| 162/DIG.4 |
Pitch control |
126 |
| 162/100 |
Processes and products |
147 |
| 162/151 |
Animal or proteinaceous fiber |
16 |
| 162/218 |
Article forming processes (pulp molding) |
78 |
| 162/228 |
Accretion from bulk |
45 |
| 162/229 |
Vibration of mold and/or slurry |
2 |
| 162/226 |
Applying heat to work on forming mold |
31 |
| 162/227 |
Applying mechanical pressure to work on forming mold |
37 |
| 162/219 |
Plural stage deposition |
17 |
| 162/220 |
Pressing with flexible diaphragm |
18 |
| 162/230 |
Separation from mold or core |
14 |
| 162/221 |
Treatment subsequent to removal from forming mold |
27 |
| 162/224 |
Heat and/or mechanical pressure |
53 |
| 162/225 |
Boards or sheets |
54 |
| 162/223 |
Reshaping (i.e., changing configuration) |
28 |
| 162/222 |
Surface treatment |
13 |
| 162/231 |
Articles |
43 |
| 162/139 |
Cigarette paper |
88 |
| 162/201 |
Combined processes |
46 |
| 162/199 |
Conditioning, preparing or repairing of apparatus |
339 |
| 162/200 |
Wire stringing |
28 |
| 162/138 |
Electrical or magnetic product characteristic |
129 |
| 162/187 |
Hydration and/or gelatinization |
28 |
| 162/103 |
Including solid non-waterlaid preform |
42 |
| 162/104 |
Between separately formed webs |
11 |
| 162/107 |
Glass |
4 |
| 162/105 |
Metallic |
18 |
| 162/106 |
Electrical conductor |
21 |
| 162/108 |
Woven fabric or parallel strands |
34 |
| 162/193 |
Lead strip forming and/or guiding |
136 |
| 162/152 |
Mineral fiber |
115 |
| 162/153 |
Asbestos |
28 |
| 162/155 |
With organic additive |
40 |
| 162/154 |
With portland cement |
17 |
| 162/156 |
Glass |
139 |
| 162/123 |
Multi-layer waterlaid webs or sheets |
240 |
| 162/125 |
Layers of different properties |
135 |
| 162/126 |
Color |
19 |
| 162/129 |
Fiber |
174 |
| 162/130 |
Dimension |
109 |
| 162/131 |
Orientation |
19 |
| 162/128 |
Inorganic additive |
45 |
| 162/127 |
Organic additive |
126 |
| 162/132 |
Separately formed webs subsequently united |
114 |
| 162/133 |
On common felt or carries (non-mold) |
48 |
| 162/124 |
With non-fiber added between layers |
42 |
| 162/158 |
Non-fiber additive |
930 |
| 162/171 |
Bitumen |
17 |
| 162/175 |
Carbohydrate |
429 |
| 162/176 |
Cellulose (non-fibrous) |
33 |
| 162/177 |
Cellulose derivative (e.g., cellulose ester) |
125 |
| 162/178 |
Gum |
95 |
| 162/162 |
Coloring agent |
208 |
| 162/179 |
Fat, fatty oil, or higher fatty acid |
265 |
| 162/163 |
Fiber supplied constituent |
41 |
| 162/159 |
Fire proofing agent |
72 |
| 162/173 |
Hydrocarbon |
55 |
| 162/183 |
Incorporation procedures |
453 |
| 162/184 |
Application to formed web |
176 |
| 162/186 |
On mold |
55 |
| 162/185 |
Part added to furnish or pulp |
82 |
| 162/181.1 |
Inorganic |
267 |
| 162/181.8 |
Clay |
223 |
| 162/181.9 |
Free metal or free carbon containing |
32 |
| 162/181.4 |
Metal oxide or hydroxide |
124 |
| 162/181.5 |
Metal other than alkali metal, magnesium, or alkaline earth metal |
111 |
| 162/181.2 |
Metal salt other than silicate |
261 |
| 162/181.3 |
Sulfate or sulfite |
101 |
| 162/181.6 |
Silicon containing additive other than clay |
290 |
| 162/181.7 |
Alkali metal silicate |
70 |
| 162/170 |
Natural hydrocarbon gum (rubber) |
7 |
| 162/180 |
Natural resin |
85 |
| 162/160 |
Preservative or antioxidant |
59 |
| 162/161 |
Biocidal |
229 |
| 162/174 |
Protein |
59 |
| 162/164.1 |
Synthetic resin |
392 |
| 162/166 |
Amine- or amide-aldehyde |
139 |
| 162/167 |
With additional organic reactant |
62 |
| 162/164.3 |
Epoxy containing reactant |
301 |
| 162/164.7 |
Ester type |
58 |
| 162/164.2 |
Ion exchange resin or molecular sieve |
22 |
| 162/164.6 |
Nitrogen containing |
453 |
| 162/165 |
Phenol-aldehyde |
78 |
| 162/168.1 |
Polymerized unsaturated compound |
444 |
| 162/168.7 |
Ester type |
68 |
| 162/169 |
From polyene compound |
191 |
| 162/168.6 |
Hetero s or epoxy component |
25 |
| 162/168.2 |
Nitrogen containing compound |
364 |
| 162/168.3 |
Acrylamide containing |
397 |
| 162/168.4 |
Heterocyclic n or s or epoxy component |
44 |
| 162/168.5 |
Heterocyclic n or s or epoxy component |
76 |
| 162/164.4 |
Silicon containing |
98 |
| 162/164.5 |
Sulfur containing |
53 |
| 162/172 |
Wax |
44 |
| 162/182 |
With preparatory chemical treatment of fiber |
165 |
| 162/188 |
Non-uniform internal structure |
14 |
| 162/109 |
Non-uniform, irregular or configured web or sheet |
377 |
| 162/116 |
By configured forming mold |
105 |
| 162/115 |
By fluid pressure |
57 |
| 162/114 |
By perforating |
20 |
| 162/111 |
Creping and/or crinkling |
403 |
| 162/113 |
With additional deformation |
202 |
| 162/112 |
With coating and/or laminating |
279 |
| 162/117 |
Subsequent treatment by irregular or configured die |
273 |
| 162/110 |
Watermarking |
37 |
| 162/141 |
Plural fiber containing |
122 |
| 162/143 |
Animal or proteinaceous |
15 |
| 162/144 |
Leather |
3 |
| 162/149 |
Fibers of different dimensions |
138 |
| 162/145 |
Mineral |
191 |
| 162/148 |
Non-wood |
51 |
| 162/146 |
Synthetic (including chemically modified cellulose) |
415 |
| 162/142 |
Undigested cellulosic fiber |
71 |
| 162/147 |
Waste paper or textile waste |
131 |
| 162/101 |
Pore forming in situ (e.g., gas generation) |
66 |
| 162/189 |
Reclamation, salvage or reuse of materials |
171 |
| 162/191 |
Broke or trim |
64 |
| 162/190 |
White water |
157 |
| 162/202 |
Running or indefinite length work forming and/or treating processes (e.g., web) |
85 |
| 162/212 |
Directing slurry into association with mold |
67 |
| 162/215 |
Counter or transverse of mold movement |
2 |
| 162/216 |
Mechanical treatment of slurry in head box or approach flow |
104 |
| 162/214 |
Pressure forming |
23 |
| 162/213 |
Projecting or slinging stock |
23 |
| 162/203 |
Forming single web between opposed forming surfaces |
127 |
| 162/211 |
Inhibiting or restricting drainage through mold |
39 |
| 162/204 |
Subsequent treatment of formed web |
107 |
| 162/207 |
Heating, cooling, gas or vapor contact |
273 |
| 162/205 |
Pressure |
329 |
| 162/206 |
With heating and/or cooling |
320 |
| 162/217 |
Suction through mold |
66 |
| 162/208 |
Treatment of slurry on mold surface |
53 |
| 162/210 |
Pressure member |
32 |
| 162/209 |
Vibration or agitation |
30 |
| 162/140 |
Safety, identification and fraud preventing paper |
91 |
| 162/157.1 |
Synthetic fiber (including chemically modified cellulose) |
100 |
| 162/157.6 |
Cellulosic |
199 |
| 162/157.7 |
Regenerated cellulose, viscose or rayon |
29 |
| 162/157.2 |
Synthetic resin |
81 |
| 162/157.3 |
Polyamide, polyester or polyurethane |
137 |
| 162/157.4 |
Polymerized unsaturated compound |
39 |
| 162/157.5 |
Hydrocarbon or halohydrocarbon |
78 |
| 162/150 |
Undigested cellulosic fiber |
45 |
| 162/192 |
Utilizing electrical or wave energy |
57 |
| 162/102 |
Utilizing non-aqueous suspending medium |
24 |
| 162/135 |
With coating after drying |
533 |
| 162/137 |
Plural layer coating |
71 |
| 162/136 |
With treatment subsequent to coating |
144 |
| 162/194 |
With cutting and/or slitting |
75 |
| 162/195 |
Fluid deckle or shower |
20 |
| 162/196 |
With folding or twisting (e.g., roving) |
9 |
| 162/198 |
With measuring, inspecting and/or testing |
394 |
| 162/134 |
With printing and/or variegated coloring |
111 |
| 162/197 |
With stretching, tensioning, decurling, flexing or breaking |
54 |
| 162/118 |
With winding or roll forming |
52 |
| 162/119 |
With coating |
10 |
| 162/120 |
With cutting and/or removing material |
14 |
| 162/121 |
With heat |
6 |
| 162/122 |
With pressure |
12 |
| 162/1 |
Processes of chemical liberation, recovery or purification of natural cellulose or fibrous material |
28 |
| 162/2 |
Animal fibers |
3 |
| 162/52 |
Charging and/or discharging fibrous material |
165 |
| 162/24 |
Chemical treatment after start or completion of mechanical defibration |
69 |
| 162/25 |
With additional chemical treatment before start of defibration |
65 |
| 162/17 |
Continuous chemical treatment or continuous charging or discharging |
124 |
| 162/19 |
Plural diverse stage treatment |
190 |
| 162/18 |
With compression, squeezing or compacting of fibrous material during charging |
62 |
| 162/21 |
Defibration by projection or explosion |
40 |
| 162/22 |
With chemical other than water or steam |
23 |
| 162/51 |
Digestion odor control |
33 |
| 162/54 |
Freezing |
3 |
| 162/63 |
Gas, vapor or mist contact |
70 |
| 162/66 |
Chlorine containing material |
25 |
| 162/67 |
Chlorine dioxide |
33 |
| 162/65 |
Oxygen, ozone or air |
357 |
| 162/68 |
Steam only |
90 |
| 162/64 |
Sulfur dioxide |
4 |
| 162/14 |
Including recovery of organic by-product |
41 |
| 162/15 |
From digester relief gases |
22 |
| 162/16 |
From waste liquor |
110 |
| 162/23 |
Mechanical defibration in the presence of heated gas or gas under pressure |
83 |
| 162/27 |
Mechanical defibration of logs or blocks after chemical treatment |
14 |
| 162/3 |
Mineral fibers |
19 |
| 162/69 |
Non-continuous liquid phase |
2 |
| 162/91 |
Particular raw cellulosic materials |
54 |
| 162/94 |
Bamboo |
6 |
| 162/93 |
Bark |
4 |
| 162/98 |
Bast (e.g., flax, hemp, jute, ramie, sisal) |
29 |
| 162/97 |
Cereal grasses or straws |
31 |
| 162/95 |
Cotton fibers or linters |
18 |
| 162/92 |
Fossilized (e.g., peat) |
10 |
| 162/99 |
Non-wood |
58 |
| 162/96 |
Sugar cane, bagasse or cornstalks |
36 |
| 162/61 |
Regulatory |
67 |
| 162/62 |
Concentration of chemicals |
57 |
| 162/26 |
Simultaneous mechanical defibration and chemical treatment |
79 |
| 162/70 |
Treatment with particular chemical |
54 |
| 162/90 |
Alkali metal, ammonium, alkaline earth metal or magnesium hydroxide or carbonate |
204 |
| 162/87 |
Chlorine containing |
43 |
| 162/88 |
Plural diverse stage treatments |
69 |
| 162/89 |
Alkali metal, ammonium, alkaline earth metal or magnesium hydroxide or carbonate in at least one stage |
93 |
| 162/79 |
Heavy metal or aluminum containing |
73 |
| 162/81 |
Nitrogen oxide, acid, or salt thereof |
42 |
| 162/72 |
Organic |
364 |
| 162/76 |
Acids, salts or esters |
242 |
| 162/77 |
Alcohols or phenols |
89 |
| 162/74 |
Chlorine containing |
20 |
| 162/75 |
Fat, fatty oil or higher fatty acid |
20 |
| 162/73 |
With inorganic chlorine containing material |
17 |
| 162/78 |
Per-compound (e.g., peroxide, perborate) |
313 |
| 162/80 |
Phosphorus, boron or silicon containing |
94 |
| 162/82 |
Sulfur containing |
95 |
| 162/83 |
Sulfur dioxide or sulfite |
87 |
| 162/84 |
Plural diverse stage treatment |
46 |
| 162/86 |
Alkali metal, ammonium, alkaline earth metal or magnesium hydroxide or carbonate in at least one stage |
40 |
| 162/85 |
Chlorine containing material in at least one stage |
9 |
| 162/71 |
Treatment of ground-wood or sawdust |
52 |
| 162/50 |
Utilizing electrical or radiant energy |
47 |
| 162/53 |
Vacuum treatment |
13 |
| 162/4 |
Waste paper or textile waste |
345 |
| 162/8 |
With alkali metal, alkaline earth metal, or ammonium compound |
143 |
| 162/6 |
With chlorine, chlorine compounds, oxygen, ozone, or per-compounds |
104 |
| 162/5 |
With organic agent |
316 |
| 162/7 |
With sulfur or sulfur compound |
61 |
| 162/57 |
With agitation or forced circulation |
150 |
| 162/59 |
Closed circuit circulation |
17 |
| 162/58 |
In rotating vessel |
13 |
| 162/9 |
With chemical or physical modification of liberated fiber |
231 |
| 162/55 |
With classifying, separating or screening of pulp (solids from solids) |
311 |
| 162/48 |
With cleaning, preserving or conditioning of apparatus |
46 |
| 162/20 |
With decortication or mechanical preparation of textile fibers |
15 |
| 162/13 |
With formation of web or article |
64 |
| 162/47 |
With heat recovery |
124 |
| 162/10 |
With non-fiber material added to product |
24 |
| 162/12 |
Added to web or article |
22 |
| 162/11 |
Fiber supplied constituent |
13 |
| 162/28 |
With plural or specified mechanical defibering step |
123 |
| 162/29 |
With regeneration, reclamation, reuse, recycling or destruction of digestion fluid |
263 |
| 162/37 |
Digestion fluid reused on different fibrous materials |
71 |
| 162/38 |
With addition of chemicals prior to reuse |
72 |
| 162/39 |
In digester |
45 |
| 162/40 |
Without treatment or modification |
68 |
| 162/41 |
Recirculation (includes separation from fibers) |
67 |
| 162/46 |
Steam only |
28 |
| 162/42 |
With treatment of fluids during recirculation |
52 |
| 162/43 |
Removal and/or separation of portion of recirculating fluid |
50 |
| 162/44 |
With recombing |
20 |
| 162/45 |
With addition of chemicals to recirculating fluid |
45 |
| 162/30.1 |
With destruction of organic ingredient in or smelting of liquor |
177 |
| 162/31 |
Flames combustion |
88 |
| 162/32 |
Liquor from digestion using organic compound or including element other than na, ca, mg, o, c, h or s |
16 |
| 162/34 |
Plural diverse digestion of same fibrous material |
9 |
| 162/35 |
Residue converted into liquor different from original liquor |
20 |
| 162/36 |
Sulfur dioxide or sulfite containing spent liquor |
48 |
| 162/30.11 |
Treatment of kraft pulping chemicals |
231 |
| 162/33 |
With mixing of liquors from different digestions |
21 |
| 162/56 |
With squeezing, compression, rubbing, kneading |
144 |
| 162/49 |
With testing, sampling or analyzing |
194 |
| 162/60 |
With washing |
267 |
| 162/DIG.12 |
Seasoning |
7 |
| 162/DIG.9 |
Uses for paper making sludge |
43 |
| 162/DIG.10 |
Computer control of paper making variables |
109 |
| 162/DIG.11 |
Wet end paper making variables |
92 |
| 162/DIG.7 |
Water collectors (e.g., save-alls) |
32 |
| 162/DIG.3 |
Wetting agent |
17 |
| 162/904 |
With specified seam structure of papermaking belt |
98 |
| 162/902 |
Woven fabric for papermaking drier section |
133 |
