| Class Number |
Class Name |
No. of Patents |
| 210/541 |
Adjuncts |
249 |
| 210/143 |
Automatic control |
865 |
| 210/148 |
Container movement operated |
7 |
| 210/145 |
Responsive to rotation |
29 |
| 210/146 |
Controlled cover latch |
13 |
| 210/147 |
Controlled discharge means |
16 |
| 210/144 |
Responsive to vibration or unbalance |
47 |
| 210/149 |
Thermal |
225 |
| 210/DIG.3 |
Belt alignment |
26 |
| 210/249 |
Bracket or leg support for static separator assembly |
128 |
| 210/250 |
Leg |
31 |
| 210/321.6 |
Casing divided by membrane into sections having inlet(s) and/or outlet(s) |
345 |
| 210/321.62 |
Antithrombogenic membrane |
16 |
| 210/321.83 |
Coiled membrane |
169 |
| 210/321.87 |
Cylindrical membrane |
215 |
| 210/321.88 |
Plural cylindrical membranes all connected for parallel flow |
160 |
| 210/321.89 |
All cylindrical membranes are parallel |
326 |
| 210/321.9 |
With embedded baffle |
69 |
| 210/321.71 |
Dialyzer with dialysate proportioning means |
160 |
| 210/321.72 |
Each section having inlet(s) and outlet(s) |
199 |
| 210/321.74 |
Coiled membrane |
144 |
| 210/321.78 |
Cylindrical membrane |
149 |
| 210/321.79 |
Plural cylindrical membranes all connected for parallel flow |
181 |
| 210/321.8 |
All cylindrical membranes are parallel |
382 |
| 210/321.81 |
With embedded baffle |
79 |
| 210/321.73 |
Noncoiled nonannular cross section tube |
10 |
| 210/321.75 |
Planar membrane |
325 |
| 210/321.76 |
Spiral flow |
49 |
| 210/321.77 |
Pleated membrane |
44 |
| 210/321.66 |
Energy recovery from treated liquid |
39 |
| 210/321.67 |
Membrane movement during purification |
74 |
| 210/321.68 |
Nontranslatory rotary |
81 |
| 210/321.61 |
Membrane secured with adhesive of specified composition |
68 |
| 210/321.82 |
Noncoiled nonannular cross section tube |
12 |
| 210/321.65 |
Permeated liquid quantity measurement or control |
243 |
| 210/321.84 |
Planar membrane |
370 |
| 210/321.85 |
Spiral flow |
67 |
| 210/321.86 |
Pleated membrane |
52 |
| 210/321.64 |
Plural diverse structured membranes within a single casing |
87 |
| 210/321.63 |
Rotating mechanical agitator adjacent membrane |
46 |
| 210/321.69 |
With membrane cleaning or sterlizing means (other than by filter movement or rotating agitator) |
267 |
| 210/321.7 |
Solid cleaning material (e.g., balls) |
5 |
| 210/DIG.5 |
Coalescer |
304 |
| 210/251 |
Combined |
218 |
| 210/173 |
Comminuting |
115 |
| 210/174 |
Cylindrical strainer |
20 |
| 210/96.1 |
Constituent mixture variation responsive |
642 |
| 210/96.2 |
With membrane |
180 |
| 210/239 |
Convertible |
44 |
| 210/240 |
Filter having selectively usable flow connector means |
30 |
| 210/DIG.6 |
Dehydrators |
65 |
| 210/294 |
Diverse distinct separators |
82 |
| 210/295 |
Including a filter |
333 |
| 210/299 |
Including constituent trapping feature |
119 |
| 210/300 |
Alternate filters and traps in series |
25 |
| 210/301 |
Plural traps |
20 |
| 210/305 |
Baffle preceding or within sediment trap |
133 |
| 210/306 |
Deflecting prefilt from filter medium |
39 |
| 210/303 |
Cut-off sediment trap |
11 |
| 210/308 |
Directly communicating with tubular filter interior |
21 |
| 210/309 |
Attached to filter element |
25 |
| 210/311 |
Downflow inlet, upflow through filter medium |
55 |
| 210/307 |
Downstream of filter medium |
78 |
| 210/302 |
Flow-line valve upstream of separator |
12 |
| 210/310 |
Lateral trap |
17 |
| 210/312 |
Sediment discharge means |
58 |
| 210/313 |
Valve controlled |
79 |
| 210/304 |
Tangential flow, spiral or convolute baffle |
197 |
| 210/296 |
Including liquid as a separating medium |
24 |
| 210/297 |
Moving filter medium |
139 |
| 210/314 |
Spaced filters |
171 |
| 210/317 |
Including non-self-supporting medium |
96 |
| 210/318 |
Incompatible shapes |
7 |
| 210/316 |
One adjacent inlet or outlet conduit |
118 |
| 210/315 |
One within another |
237 |
| 210/298 |
With mechanical residue or sediment mover |
88 |
| 210/319 |
With agitator |
55 |
| 210/320 |
With baffle perpendicular to flow direction |
144 |
| 210/DIG.7 |
Drier blocks |
12 |
| 210/243 |
Electrical insulating or electricity discharging |
386 |
| 210/DIG.8 |
Fat fryer |
109 |
| 210/348 |
Filter |
79 |
| 210/417 |
Alternating oppositely opening liquid distributors |
14 |
| 210/433.1 |
Divided filtered, and unfiltered liquid passages |
243 |
| 210/434 |
Recombining |
80 |
| 210/353 |
Free cleaning means, e.g., loose abrading particles |
19 |
| 210/470 |
Handled |
184 |
| 210/471 |
Ring type |
31 |
| 210/358 |
Imperforate drum, medium on arc, chord or end |
16 |
| 210/500.1 |
Material |
201 |
| 210/506 |
Coated or impregnated, e.g., adhesively bound |
360 |
| 210/507 |
Fabrics |
112 |
| 210/508 |
Fibrous |
326 |
| 210/509 |
Inorganic |
135 |
| 210/503 |
Diverse granular or fibrous |
262 |
| 210/505 |
Including fibers |
378 |
| 210/504 |
With adhered coating or impregnant |
241 |
| 210/510.1 |
Porous unitary mass |
533 |
| 210/500.21 |
Semipermeable membrane |
208 |
| 210/500.24 |
Antithrombogenic coating or membrane |
56 |
| 210/500.26 |
Glass |
179 |
| 210/500.23 |
Hollow fiber or cylinder |
766 |
| 210/500.22 |
Isotropically pored |
67 |
| 210/500.25 |
Metal containing |
243 |
| 210/500.27 |
Organic |
457 |
| 210/500.35 |
Acrylate |
154 |
| 210/500.36 |
Alkene other than vinyl |
330 |
| 210/500.37 |
Amine |
194 |
| 210/500.38 |
Amide |
395 |
| 210/500.39 |
Imide |
151 |
| 210/500.4 |
Carbonate |
46 |
| 210/500.28 |
Cyclic |
184 |
| 210/500.29 |
Cellulosic |
224 |
| 210/500.3 |
Cellulose acetate |
100 |
| 210/500.31 |
Cellulose diacetate |
41 |
| 210/500.32 |
Cellulose triacetate |
47 |
| 210/500.33 |
Homocyclic |
95 |
| 210/500.34 |
Styrene |
92 |
| 210/500.41 |
Sulfone |
367 |
| 210/500.42 |
Vinyl |
330 |
| 210/500.43 |
Acrylonitrile |
131 |
| 210/502.1 |
Sorptive component containing |
1074 |
| 210/501 |
Sterilizing or neutralizing agent containing |
192 |
| 210/354 |
Medium, cleaner or agitator moved by fluid |
61 |
| 210/355 |
Cleaner |
52 |
| 210/356 |
Medium flexed |
97 |
| 210/359 |
Movable medium |
145 |
| 210/400 |
Belt type |
398 |
| 210/401 |
Superimposed on additional moving support |
214 |
| 210/360.1 |
Centrifugal extractor |
324 |
| 210/364 |
Casing, shaft and filter unit gyratorily mounted |
11 |
| 210/369 |
Discharging residue |
90 |
| 210/372 |
By residue engaging means |
24 |
| 210/376 |
Axially reciprocable |
37 |
| 210/373 |
Fixed |
38 |
| 210/374 |
Rotatable |
84 |
| 210/375 |
Pivoted |
23 |
| 210/370 |
Secondary motion of filter medium |
29 |
| 210/371 |
With variable flow controller |
17 |
| 210/367 |
Filter gyratorily mounted on shaft |
13 |
| 210/378 |
Including filtrate receiving means having plural filtrate outlets |
45 |
| 210/379 |
Including filtrate receiving trough adjacent top discharge |
11 |
| 210/377 |
Internal work distributor |
76 |
| 210/380.1 |
Rotating element construction |
309 |
| 210/380.3 |
Horizontal axis |
74 |
| 210/381 |
Inwardly extending partitions |
16 |
| 210/380.2 |
Laundry |
16 |
| 210/382 |
Top filtrate discharge |
12 |
| 210/365 |
Shaft and filter unit gyratorily mounted |
21 |
| 210/366 |
Gyratory mounting above filter |
7 |
| 210/363 |
With adjustable rotation stabilizer |
17 |
| 210/361 |
With individual article container or support |
43 |
| 210/362 |
Container or support reversible |
2 |
| 210/360.2 |
With inward flow of feed component |
47 |
| 210/368 |
With rotation brake |
11 |
| 210/402 |
Drum type |
279 |
| 210/404 |
Annular segmented compartment |
115 |
| 210/403 |
Internal feed |
111 |
| 210/390 |
Mounted on movable valve element |
23 |
| 210/386 |
Rolls or confining members contacting residue |
160 |
| 210/383 |
Separate agitator |
30 |
| 210/387 |
Unrollable |
151 |
| 210/388 |
Vibrating or longitudinally reciprocating |
180 |
| 210/389 |
Longitudinally moving prefilt type |
45 |
| 210/384 |
Vibrator and unidirectional motion filter medium |
49 |
| 210/391 |
With cleaning means |
208 |
| 210/393 |
Backwash or blowback and additional cleaner |
145 |
| 210/394 |
Discharging inside, e.g., internal-type drum |
72 |
| 210/392 |
Fixed position or attached valve blocking means |
31 |
| 210/396 |
Solid cleaner, e.g., scraper |
232 |
| 210/397 |
With plural outlets from filter casing |
37 |
| 210/395 |
With filter-driven valve means |
7 |
| 210/385 |
With plural motion |
27 |
| 210/398 |
Within sealed enclosure |
76 |
| 210/399 |
Movable casing |
11 |
| 210/405 |
Movable prefilt distributor |
60 |
| 210/459 |
Pipe or plate attached type |
98 |
| 210/460 |
Attached to open end of pipe |
266 |
| 210/463 |
Inserted holder |
73 |
| 210/462 |
Pipe is connection to plate |
45 |
| 210/461 |
Spaced wall-type element |
82 |
| 210/464 |
Portable receptacle draining type |
86 |
| 210/465 |
Cooperating handles on receptacle and drainer |
16 |
| 210/469 |
On or adjacent receptacle upper edge |
83 |
| 210/466 |
Receptacle spout |
22 |
| 210/468 |
Spaced from spout discharge |
7 |
| 210/467 |
Within receptacle proper |
26 |
| 210/456 |
Prefilt flow distributor or diverter |
566 |
| 210/349 |
Pulsation dampener or gas trapping |
35 |
| 210/455 |
Receptacle and modified spacing surface or support for filter medium |
440 |
| 210/357 |
Relatively movable members interleaved for cleaning |
42 |
| 210/473 |
Resting on supporting receiver, e.g., portable |
105 |
| 210/482 |
At lower end or prefilt receiver |
114 |
| 210/474 |
At upper edge of filtrate receiver |
382 |
| 210/475 |
Filter offset in cover |
32 |
| 210/476 |
Telescoped receivers or receiver sections |
25 |
| 210/477 |
Resting on internal stop or surface |
201 |
| 210/479 |
Inner separate retainer |
44 |
| 210/480 |
With contractor for expandable retainer |
11 |
| 210/481 |
Longitudinal retainer or guide, (e.g., reflex coffee maker) |
31 |
| 210/478 |
Unitary filter medium and radially expandable retainer |
17 |
| 210/483 |
Supported, shaped or superimposed formed mediums |
234 |
| 210/488 |
Abutted or superimposed members |
350 |
| 210/492 |
Alternating dissimilar |
127 |
| 210/489 |
For series flow |
492 |
| 210/490 |
Integral or coated layers |
764 |
| 210/491 |
All fibrous |
90 |
| 210/496 |
Bound, fused or matted, e.g., porous shapes, sponges, etc. |
271 |
| 210/494.1 |
Convolute |
92 |
| 210/494.2 |
Metal |
27 |
| 210/494.3 |
With edge spacer |
16 |
| 210/497.01 |
Cylindrical, conical, or trough shape |
602 |
| 210/497.3 |
Conical |
122 |
| 210/497.2 |
Filter blank |
102 |
| 210/497.1 |
Helically wound |
268 |
| 210/485 |
External cage-type support |
112 |
| 210/484 |
Medium within foraminous supporting container or sheath |
283 |
| 210/498 |
Perforated or grooved plates |
274 |
| 210/493.1 |
Pleated |
308 |
| 210/493.2 |
Bonded end caps |
226 |
| 210/493.5 |
Filter element |
260 |
| 210/493.3 |
Rectangularly shaped |
84 |
| 210/493.4 |
Spirally formed |
77 |
| 210/499 |
Screens, e.g., woven |
410 |
| 210/495 |
Single ring or closed frame type |
109 |
| 210/486 |
Spaced wall type, e.g., hollow leaf |
273 |
| 210/487 |
Concentric, convolute or pleated |
132 |
| 210/406 |
Vacuumized filtrate receiver |
299 |
| 210/472 |
Vented |
254 |
| 210/457 |
With central pervious tubular receiver |
203 |
| 210/458 |
Plural concentric receivers |
45 |
| 210/418 |
With flow controller for material being treated |
177 |
| 210/419 |
Attached to or within portable prefilt receiver |
30 |
| 210/428 |
Combining or dividing flow passages with filter in combined passage |
52 |
| 210/429 |
Filter coaxial with valve seat or valve stem |
90 |
| 210/431 |
Filter fixed to valve seat, opposed to valve head |
18 |
| 210/430 |
Filter surrounds valve |
70 |
| 210/432 |
Filter in valve body recess |
45 |
| 210/420 |
Selective directive flow relative to filter |
122 |
| 210/427 |
Backwash |
72 |
| 210/424 |
Multi-way valve |
103 |
| 210/425 |
Backwash |
50 |
| 210/426 |
Encased |
23 |
| 210/421 |
Pivoted prefilt deflector |
19 |
| 210/422 |
Plural outlets from filter casing |
50 |
| 210/423 |
Attached unitary plural passage header |
20 |
| 210/350 |
With movable means to compress medium |
159 |
| 210/351 |
Actuating means external of closed casing |
61 |
| 210/352 |
Internal spring |
56 |
| 210/416.1 |
With pump, gas pressure, or suction source |
765 |
| 210/416.2 |
For aquarium or swimming pool |
495 |
| 210/416.3 |
For drinking water |
138 |
| 210/416.4 |
For fuel system |
186 |
| 210/416.5 |
For lubricating or oil treating system |
221 |
| 210/407 |
With residue removing means or agitation of liquid |
172 |
| 210/408 |
Diverse, e.g., combined agitators, scrapers, aeration blowback |
173 |
| 210/413 |
Fixed filter medium and movable stirrer or cleaner |
266 |
| 210/415 |
Nontranslatory rotary |
251 |
| 210/414 |
With plural outlets from filter casing |
119 |
| 210/409 |
Fluid cleaning |
226 |
| 210/410 |
Air pump type |
30 |
| 210/411 |
Backwash or blowback |
465 |
| 210/412 |
Liquid pulsator |
76 |
| 210/435 |
Within flow line or flow line connected close casing |
293 |
| 210/446 |
Axially aligned inlet and outlet |
381 |
| 210/447 |
Laterally removable |
124 |
| 210/449 |
Pipe end attached closed casing, e.g., faucet |
104 |
| 210/448 |
Single open-end-type filter element |
198 |
| 210/437 |
Central internal liquid receiver, e.g., tube |
136 |
| 210/441 |
Attached to casing |
81 |
| 210/442 |
Head and base connected |
46 |
| 210/438 |
Imperforate central liquid tube |
133 |
| 210/439 |
Axial flow through filter element |
60 |
| 210/440 |
Inlet and outlet at same end |
398 |
| 210/445 |
Clamped in casing joint |
267 |
| 210/454 |
Filter element attached to closure |
115 |
| 210/453 |
Filter element clamped between closure and end wall |
202 |
| 210/450 |
Gasket within casing or spaced removable end members |
650 |
| 210/443 |
Inlet and outlet at same end |
333 |
| 210/444 |
Filter suspended from head |
258 |
| 210/451 |
Internal fixed shoulder supporting filter element |
213 |
| 210/452 |
Single open-end-type filter element |
179 |
| 210/436 |
Vented |
311 |
| 210/247 |
Filtrate splash plate and/or deflector |
88 |
| 210/DIG.9 |
Floating cover |
23 |
| 210/97 |
Flow, fluid pressure or material level, responsive |
470 |
| 210/136 |
Check valve |
530 |
| 210/109 |
Discharge of treated material |
206 |
| 210/117 |
Check valve controlled |
132 |
| 210/119 |
Float type |
30 |
| 210/118 |
Non-closing, e.g., sand valve |
4 |
| 210/112 |
Heavier constituent |
75 |
| 210/114 |
By treated liquid accumulation |
62 |
| 210/113 |
By weight of solids |
18 |
| 210/115 |
With lighter constituent outlet control |
62 |
| 210/116 |
Permitted by filtrate accumulation |
32 |
| 210/111 |
Responsive to prefilt accumulation or filter clogging |
71 |
| 210/110 |
With separator inlet control |
119 |
| 210/103 |
Diverse sensing means |
171 |
| 210/104 |
Responsive to material level |
436 |
| 210/105 |
With control for auxiliary liquid inlet |
64 |
| 210/106 |
Filter cleaning |
133 |
| 210/108 |
Backwash or blowback |
291 |
| 210/107 |
Rotary movement of filter or mechanical cleaner |
105 |
| 210/121 |
Float |
132 |
| 210/122 |
Controls movable separator |
103 |
| 210/123 |
Controls valve |
148 |
| 210/127 |
Additional fluid inlet control |
33 |
| 210/124 |
Controls flow between two separators |
22 |
| 210/128 |
Float in receptacle other than that of separator |
62 |
| 210/129 |
In flow between inlet and separator |
18 |
| 210/126 |
Float in separate rehabilitating fluid tank |
14 |
| 210/125 |
Separator between float and valve |
11 |
| 210/100 |
Flow cut-off requiring reset |
68 |
| 210/98 |
Fluid current controlled cyclic system |
81 |
| 210/130 |
Fluid pressure responsive by-pass |
252 |
| 210/131 |
By movement of separation medium |
56 |
| 210/133 |
In inlet and outlet closure header |
49 |
| 210/132 |
With additional separation or treating means |
69 |
| 210/137 |
Maintaining stream pressure or flow |
356 |
| 210/134 |
Plural elements controlled |
223 |
| 210/135 |
Including manually controlled element |
25 |
| 210/99 |
Prefilt deverting to drain by prefilt accumulation |
14 |
| 210/102 |
Programming plural units |
33 |
| 210/101 |
Proportionate feed means |
248 |
| 210/120 |
Vent control |
128 |
| 210/513 |
Gravitational separator |
169 |
| 210/532.1 |
Heavier constituent trap, chamber, or recess |
409 |
| 210/533 |
Closure or valve controlled discharge |
108 |
| 210/536 |
In side wall of separator |
40 |
| 210/534 |
In sloping recess |
87 |
| 210/535 |
Downstream of separator |
30 |
| 210/537 |
With discharge means for two or more lighter constituents |
60 |
| 210/532.2 |
Septic tank |
268 |
| 210/538 |
Lighter constituent trap |
137 |
| 210/539 |
Gas vent or bypass |
121 |
| 210/540 |
With discharge port |
405 |
| 210/519 |
Material supply distributor |
315 |
| 210/520 |
Rotatable |
46 |
| 210/523 |
Mechanical constituent mover |
169 |
| 210/524 |
Diverse serial |
23 |
| 210/526 |
Endless belt or chain |
119 |
| 210/528 |
Horizontally rotating scraper |
103 |
| 210/531 |
Elevatable scrapers |
30 |
| 210/529 |
Polygonal container and correlating mover |
2 |
| 210/530 |
Tank rim-supported carriage |
42 |
| 210/527 |
Rectilinearly movable supporting means |
83 |
| 210/525 |
Scum sediment removal |
198 |
| 210/514 |
Portable invertible, e.g., milk and cream separator |
51 |
| 210/516 |
Resilient deformable isolator |
131 |
| 210/517 |
Hinged to handle |
5 |
| 210/518 |
Sectional isolator |
69 |
| 210/515 |
Selective withdrawal of constituents |
66 |
| 210/521 |
Superposed compartments or baffles, e.g., parallel plate type |
548 |
| 210/522 |
Each with lighter constituent discharge |
189 |
| 210/929 |
Hemoultrafiltrate volume measurement or control processes |
145 |
| 210/511 |
Liquid as separating medium |
212 |
| 210/222 |
Magnetic |
818 |
| 210/223 |
With additional separator |
367 |
| 210/902 |
Materials removed |
36 |
| 210/917 |
Color |
165 |
| 210/911 |
Cumulative poison |
126 |
| 210/912 |
Heavy metal |
720 |
| 210/913 |
Chromium |
217 |
| 210/914 |
Mercury |
157 |
| 210/915 |
Fluorine containing |
90 |
| 210/903 |
Nitrogenous |
604 |
| 210/904 |
-cn containing |
155 |
| 210/905 |
Protein |
80 |
| 210/916 |
Odor (including control or abatement) |
214 |
| 210/908 |
Organic |
502 |
| 210/909 |
Aromatic compound (e.g., pcb, phenol, etc.) |
385 |
| 210/910 |
Nonbiodegradable surfacant |
20 |
| 210/906 |
Phosph |
