| Class Number |
Class Name |
No. of Patents |
| 4/DIG.12 |
Aerobic (decomposing) toilet |
41 |
| 4/DIG.18 |
Bathroom fixture liners |
39 |
| 4/443 |
Bidets |
116 |
| 4/445 |
Bidet basin for flush closet |
16 |
| 4/446 |
Bidet bowl with drain |
12 |
| 4/448 |
Nozzle attachment |
112 |
| 4/447 |
Nozzle with seat |
85 |
| 4/444 |
With seat |
25 |
| 4/901 |
Bowl skirt or tank cover |
9 |
| 4/248 |
Buffers and dashpots |
64 |
| 4/254 |
Closet head, foot, and body rests |
145 |
| 4/253 |
Closet-bowl closures |
50 |
| 4/514 |
Convertible class-type apparatus |
10 |
| 4/244.1 |
Cover dispenser |
14 |
| 4/244.2 |
Continuous roll |
18 |
| 4/244.3 |
Pad mounted on seat |
9 |
| 4/245.1 |
Cover for seat |
30 |
| 4/245.3 |
Securing means |
24 |
| 4/245.4 |
Adhesive |
28 |
| 4/245.5 |
Peripheral |
13 |
| 4/245.6 |
Specific material |
14 |
| 4/245.8 |
Paper |
26 |
| 4/245.9 |
Having dependent member in closet bowl |
17 |
| 4/245.7 |
Plastic or rubber |
22 |
| 4/245.2 |
Tubular type |
9 |
| 4/256.1 |
Debris catcher for a flush closet or clean out plug |
36 |
| 4/900 |
Decontamination shower |
17 |
| 4/DIG.16 |
Deformable toilet traps |
9 |
| 4/666 |
Diaper washing devices |
7 |
| 4/DIG.2 |
Disappearing bowl |
20 |
| 4/222 |
Disinfection |
136 |
| 4/232 |
Chemical chamber formed in bowl |
2 |
| 4/230 |
Chemical holder in lid |
3 |
| 4/229 |
Chemical holder in seat |
12 |
| 4/231 |
Chemical holder suspended in bowl |
65 |
| 4/228.1 |
Dispensing to air from closet |
25 |
| 4/223 |
Dispensing to bowl |
55 |
| 4/224 |
Combined with flusher |
23 |
| 4/226.1 |
Dispensing to or dispenser in flush pipe |
33 |
| 4/225.1 |
Dispensing to overflow of flush tank |
42 |
| 4/227.1 |
Dispensing to water in flush tank |
87 |
| 4/227.2 |
Float actuated |
24 |
| 4/227.3 |
Valve |
30 |
| 4/227.4 |
Water level actuated |
28 |
| 4/227.5 |
Static dispenser (i.e., no moving part) |
24 |
| 4/227.6 |
Having a flush water dosing chamber |
39 |
| 4/227.7 |
With a siphon |
27 |
| 4/233 |
Seat and cover treating |
58 |
| 4/222.1 |
With screen |
15 |
| 4/679 |
Drain, overflow or trap for a sink or bath |
128 |
| 4/680 |
Drain and overflow |
31 |
| 4/681 |
And trap |
17 |
| 4/682 |
With valve |
11 |
| 4/687 |
Bi-transit for drain of sink or bath |
2 |
| 4/683 |
Ell having fluid communication with the drain and overflow openings of a sink or bath |
24 |
| 4/684 |
Pop-up drain valve |
15 |
| 4/685 |
Contacted by a rotating member |
8 |
| 4/686 |
Standpipe overflow |
7 |
| 4/688 |
Drain valve |
32 |
| 4/693 |
Operating means in sink or bath |
16 |
| 4/689 |
Pop-up |
36 |
| 4/690 |
Contacted by rotating member |
2 |
| 4/691 |
Lever |
11 |
| 4/692 |
Having at least a semi-spherical fulcrum |
8 |
| 4/694 |
Overflow opening attachment |
37 |
| 4/251.1 |
Drip catcher |
27 |
| 4/251.2 |
For flush closet tank only |
4 |
| 4/449 |
Dry closets |
117 |
| 4/458 |
Automobile |
24 |
| 4/114.1 |
Urinal |
9 |
| 4/450 |
Bedpans |
38 |
| 4/457 |
Accessories |
28 |
| 4/456 |
Cushioned |
33 |
| 4/451 |
Disposable type |
23 |
| 4/453 |
With deodorizing means |
14 |
| 4/455 |
With drain means |
23 |
| 4/452 |
With liner |
36 |
| 4/454 |
With urinal |
7 |
| 4/459 |
Chemical |
15 |
| 4/476 |
Enclosed receptacle type |
47 |
| 4/477 |
Ventilated |
5 |
| 4/478 |
With arm or back support |
16 |
| 4/460 |
Field |
67 |
| 4/461 |
Plural |
5 |
| 4/479 |
Receptacle type |
46 |
| 4/484 |
Flexible material |
116 |
| 4/480 |
Invalid |
83 |
| 4/481 |
Muffler for liquid |
1 |
| 4/482 |
Ventilated |
13 |
| 4/483 |
With seat |
113 |
| 4/485 |
Seat subclosure |
4 |
| 4/486 |
Seat or lid operated |
3 |
| 4/144.1 |
Urinal |
195 |
| 4/144.3 |
Contacting and conforming to anatomy |
141 |
| 4/144.2 |
Disposable, entirely or a portion |
101 |
| 4/144.4 |
Spout only |
52 |
| 4/471 |
Valved bowl |
12 |
| 4/473 |
Seat, lid or covering operated |
3 |
| 4/472 |
Ventilated |
4 |
| 4/474 |
Vault type |
1 |
| 4/475 |
Ventilated |
4 |
| 4/111.1 |
With heating meas |
52 |
| 4/111.2 |
And cyclic control means |
16 |
| 4/111.3 |
Having seat actuator or interlock |
8 |
| 4/111.6 |
And separate drying zone |
17 |
| 4/111.5 |
Electric |
34 |
| 4/111.4 |
Fluid fuel burner |
12 |
| 4/464 |
With magazine |
1 |
| 4/465 |
Furniture type |
3 |
| 4/470 |
In lid |
1 |
| 4/469 |
Lid or covering operated |
0 |
| 4/467 |
Movable receiver |
3 |
| 4/468 |
Seat operated |
0 |
| 4/466 |
Valved bowl |
0 |
| 4/462 |
With urinal |
12 |
| 4/463 |
Separate receiver |
13 |
| 4/DIG.3 |
Electric flushing |
104 |
| 4/DIG.17 |
Electrolytic toilets |
1 |
| 4/696 |
Fitting or manifold for a sink or bath |
61 |
| 4/252.1 |
Flush closet bowl support, coupling, seal or fastener |
86 |
| 4/252.4 |
Flange with aperture for fastener |
57 |
| 4/252.5 |
Having a seal |
40 |
| 4/252.6 |
Seal structure detail |
23 |
| 4/252.2 |
Support for a wall hung closet bowl |
24 |
| 4/252.3 |
Adjustable |
19 |
| 4/664 |
Flush closet or urinal and wash receptacle |
64 |
| 4/665 |
Wash receptacle water empties into toilet facility |
71 |
| 4/667 |
Flush closet seat assist to raise user |
58 |
| 4/663 |
Flush closet, wash receptacle, and bathtub or shower |
47 |
| 4/300 |
Flush closet |
133 |
| 4/420 |
Bowl |
135 |
| 4/431 |
Pump or suction-type discharge |
110 |
| 4/432 |
With flush supply pump |
22 |
| 4/433 |
Unitary with discharge pump |
10 |
| 4/421 |
Siphon discharge |
36 |
| 4/428 |
Configurated outlet |
15 |
| 4/430 |
Distinct from bowl |
2 |
| 4/424 |
Extra trap or false trap |
12 |
| 4/427 |
Overflow inhibitor |
54 |
| 4/429 |
Pan bowl |
1 |
| 4/425 |
Siphonic jet at trap |
34 |
| 4/426 |
With check valve |
6 |
| 4/422 |
With flush valve |
11 |
| 4/423 |
With vacuum breaker |
2 |
| 4/434 |
Valved dischage |
69 |
| 4/441 |
Pivoted valve |
20 |
| 4/442 |
Pan type |
10 |
| 4/435 |
With flush supply actuated by valved discharge |
36 |
| 4/436 |
By movement of seat or lid |
4 |
| 4/437 |
Float control of fluid in bowl |
2 |
| 4/438 |
Pivoted valve |
16 |
| 4/440 |
Pan type |
8 |
| 4/439 |
With additional valve (e.g., draft control) |
0 |
| 4/420.3 |
With bidet basin |
25 |
| 4/420.4 |
With bidet nozzle |
197 |
| 4/420.5 |
Integral with flush closet |
18 |
| 4/420.1 |
With body-contacting nozzle |
36 |
| 4/420.2 |
With heated bidet fluid |
91 |
| 4/312 |
Folding type |
29 |
| 4/329 |
Low profile tank and bowl |
24 |
| 4/331 |
Float-controlled valve |
11 |
| 4/332 |
Pressure flush |
14 |
| 4/330 |
Seat actuated flush |
1 |
| 4/324 |
Manual selection of the amount of flush |
180 |
| 4/325 |
Alternate unicyclic flush |
185 |
| 4/326 |
Plural flush valves |
67 |
| 4/327 |
In axial alignment |
12 |
| 4/333 |
Normally empty tank |
5 |
| 4/334 |
Pressure tank |
6 |
| 4/335 |
With seat-actuated valve |
0 |
| 4/337 |
And drain means |
1 |
| 4/336 |
And siphon bowl |
1 |
| 4/338 |
With seat-actuated valve |
1 |
| 4/339 |
And drain means |
0 |
| 4/343 |
Overhead tank with bowl |
3 |
| 4/344 |
Siphon bowl |
3 |
| 4/345 |
Plural flush, preliminary or subsequent |
16 |
| 4/346 |
Including plural compartments in tank |
16 |
| 4/340 |
Plural receptacles |
18 |
| 4/341 |
Diverse |
26 |
| 4/342 |
Separate and distinct |
18 |
| 4/316 |
Reduced gravity environment type |
32 |
| 4/328 |
Tank and bowl with plural connections, one being pneumatic |
11 |
| 4/353 |
Tank only |
82 |
| 4/354 |
Pressure tank |
54 |
| 4/362 |
By air under pressure |
28 |
| 4/360 |
Dashpot-controlled outlet valve |
4 |
| 4/356 |
Float outlet valve |
7 |
| 4/357 |
Free floating |
0 |
| 4/358 |
With guide (e.g., a cage) |
1 |
| 4/355 |
Float-released outlet valve |
3 |
| 4/361 |
Pneumatic or hydraulic adjustability |
17 |
| 4/359 |
Valve held open by flow |
15 |
| 4/415 |
Water saver |
263 |
| 4/417 |
With connector or seal |
11 |
| 4/418 |
Enclosure or housing for connector or seal |
3 |
| 4/416 |
With lining |
4 |
| 4/368 |
With outlet siphon |
13 |
| 4/372 |
Including means to immerse siphon |
3 |
| 4/375 |
Including means to raise liquid level |
6 |
| 4/369 |
Including means to relieve trapped air |
6 |
| 4/371 |
By raising trapped air housing |
0 |
| 4/370 |
By releasing trapped air |
13 |
| 4/374 |
Jet starter |
6 |
| 4/373 |
Pump starter |
5 |
| 4/376 |
Valve starter |
4 |
| 4/377 |
By moving siphon |
3 |
| 4/378 |
With outlet valve |
99 |
| 4/405 |
Actuator |
76 |
| 4/410 |
Button type |
35 |
| 4/406 |
Electrical |
50 |
| 4/413 |
Including articulated rigid linkage |
15 |
| 4/414 |
Having stationary pivot within tank |
11 |
| 4/412 |
Including flexible linkage element in tank (e.g., chain or cord) |
23 |
| 4/407 |
Pneumatic or hydraulic |
29 |
| 4/411 |
Portion of linkage external to tank |
14 |
| 4/408 |
Seat actuated |
24 |
| 4/409 |
With overhead tank |
1 |
| 4/394 |
Connected to float |
37 |
| 4/395 |
Float type |
35 |
| 4/396 |
Free floating during flush |
5 |
| 4/402 |
Having liquid receptacle open upwardly |
12 |
| 4/397 |
Having seating guide |
17 |
| 4/398 |
Cage type |
8 |
| 4/401 |
Plural static guides |
2 |
| 4/399 |
Valve moves relative to guide through bottom of valve |
1 |
| 4/400 |
Valve-attached seating element enters discharge pipe |
10 |
| 4/403 |
Hollow |
11 |
| 4/404 |
Open at bottom |
27 |
| 4/392 |
Swinging |
20 |
| 4/393 |
Pivoted |
74 |
| 4/379 |
With delay of valve closing |
28 |
| 4/381 |
By float releasable latch |
17 |
| 4/384 |
Latched actuator |
6 |
| 4/382 |
Tiltable or pivoted valve body |
18 |
| 4/383 |
With overflow through valve closure |
3 |
| 4/387 |
By flow-responsive element in valve outlet |
8 |
| 4/380 |
By pressure or suction control of valve |
16 |
| 4/388 |
By retarding mechanism, e.g., dashpot |
15 |
| 4/389 |
With overflow through valve closure |
3 |
| 4/386 |
By shifting weight |
7 |
| 4/385 |
By varying weight releasable latch |
3 |
| 4/390 |
With overflow through valve closure |
18 |
| 4/391 |
Float connected or float type valve |
36 |
| 4/363 |
With plural compartments |
34 |
| 4/365 |
Pivotal compartment |
11 |
| 4/364 |
Single tank with divider |
25 |
| 4/366 |
With simultaneous common actuating means for supply and outlet valves |
69 |
| 4/367 |
By fluid or electrical means |
15 |
| 4/419 |
With support |
8 |
| 4/301 |
Urinals only |
79 |
| 4/311 |
Bowl type |
16 |
| 4/302 |
Flush actuation automatically responsive to condition |
44 |
| 4/305 |
By electric condition responsive means |
42 |
| 4/304 |
By radiant energy responsive means |
68 |
| 4/303 |
Periodic flush |
7 |
| 4/307 |
Folding type |
14 |
| 4/308 |
Pedal actuated flush |
14 |
| 4/306 |
Ventilated, i.e., noxious fume removal |
7 |
| 4/310 |
Vertical type |
22 |
| 4/309 |
With disinfectant means |
31 |
| 4/347 |
Ventilated, i.e., noxious fume removal |
36 |
| 4/348 |
Bowl |
22 |
| 4/352 |
Annular ventilator |
18 |
| 4/350 |
Unitary with discharge from bowl |
2 |
| 4/351 |
Trap or siphon |
7 |
| 4/349 |
Unitary with flush supply to bowl |
15 |
| 4/313 |
With automatic flush responsive means |
64 |
| 4/300.2 |
With bedpan rinser |
15 |
| 4/315 |
With disposable container |
15 |
| 4/321 |
With holding tank |
179 |
| 4/322 |
And heater |
14 |
| 4/323 |
And valve for emptying |
103 |
| 4/314 |
With indicator |
28 |
| 4/319 |
With macerator |
54 |
| 4/320 |
Including additional treatment |
28 |
| 4/317 |
With recirculating means |
49 |
| 4/318 |
Including specified filtering means |
32 |
| 4/300.3 |
With splash guard or water baffle |
96 |
| 4/300.1 |
With toilet tissue holder |
12 |
| 4/249 |
Flush-valve operators |
62 |
| 4/250 |
Seat operated |
18 |
| 4/DIG.4 |
Garbage grinder |
16 |
| 4/515 |
Hair washing machine or device or accessory |
47 |
| 4/523 |
Body-portion rest |
62 |
| 4/517 |
Combined |
15 |
| 4/519 |
Head or neck receiving or supporting sink |
61 |
| 4/516 |
Portable |
59 |
| 4/520 |
Shield or drain |
22 |
| 4/521 |
Supported by body |
21 |
| 4/522 |
With post-type support |
9 |
| 4/518 |
With water supply means |
35 |
| 4/668 |
Having condition responsive supply outlet, drain, overflow or trap for a sink or bath |
56 |
| 4/669 |
Float actuated |
13 |
| 4/DIG.6 |
Heated seats |
18 |
| 4/DIG.7 |
House plumbing fittings |
26 |
| 4/242.1 |
Lid |
27 |
| 4/DIG.19 |
Liquid-solid separators |
26 |
| 4/535 |
Means for applying vapor or hot air directly to body of user |
15 |
| 4/537 |
To the head or face |
24 |
| 4/536 |
With means for covering a majority of the user's body |
9 |
| 4/615 |
Means for spraying user |
220 |
| 4/618 |
Supported by neck or shoulder of user |
1 |
| 4/616 |
With self-contained water supply |
22 |
| 4/617 |
Overhead-gravity feed |
11 |
| 4/243.1 |
Mechanism positions cover on seat |
17 |
| 4/243.3 |
Single continuous roll of flat covers |
14 |
| 4/243.2 |
Tubular type cover |
18 |
| 4/DIG.9 |
Methods |
48 |
| 4/661 |
Miscellaneous |
428 |
| 4/255.01 |
Obstruction remover |
75 |
| 4/255.04 |
Connected to a source of external fluid under pressure |
27 |
| 4/255.06 |
With flow control valve |
39 |
| 4/255.05 |
With force cup (e.g., a plunger) |
24 |
| 4/255.08 |
With head structure that grips drain opening or pipe |
22 |
| 4/255.09 |
With head structure that increases velocity or turbulence |
15 |
| 4/255.07 |
With means to block or clear the overflow |
6 |
| 4/255.11 |
Force cup (e.g., a plunger) |
66 |
| 4/255.12 |
With one way valve |
7 |
| 4/255.02 |
Piston |
23 |
| 4/255.03 |
With one way valve |
11 |
| 4/DIG.11 |
Oil toilet |
13 |
| 4/487 |
Open-water barrier |
21 |
| 4/246.1 |
Opener or closer for a closet seat or lid |
193 |
| 4/246.2 |
Fluid mechanism |
65 |
| 4/246.3 |
Lever operated opener |
44 |
| 4/246.4 |
Four bar link |
19 |
| 4/246.5 |
Using a seat or lid for a link |
18 |
| 4/DIG.14 |
Pipe strainers |
35 |
| 4/DIG.1 |
Plural connected floats |
11 |
| 4/488 |
Pool type |
111 |
| 4/496 |
Accessory |
323 |
| 4/498 |
Covering |
259 |
| 4/499 |
Air inflatable or supported |
68 |
| 4/503 |
Including securing means |
109 |
| 4/500 |
Including storage area |
41 |
| 4/502 |
On a roll |
102 |
| 4/501 |
On pool bottom |
15 |
| 4/505 |
Divider |
30 |
| 4/504 |
Safety means |
111 |
| 4/497 |
Wave quelling |
14 |
| 4/495 |
Adjustable bottom |
38 |
| 4/494 |
Combined or convertable |
55 |
| 4/506 |
Construction details |
268 |
| 4/507 |
Including water inlet or outlet means |
211 |
| 4/509 |
And pump |
98 |
| 4/508 |
And water level control |
102 |
| 4/510 |
Gutter |
46 |
| 4/512 |
Including weir |
29 |
| 4/511 |
With handhold (e.g., life rail) |
9 |
| 4/513 |
Shape |
34 |
| 4/489 |
Plural separate receptacles |
22 |
| 4/490 |
With cleaning means |
208 |
| 4/493 |
With heating means |
122 |
| 4/492 |
With water-jet means |
171 |
| 4/491 |
With wave-making means |
79 |
| 4/670 |
Prefabricated (e.g., modular) plumbing system |
14 |
| 4/DIG.15 |
Prison bathrooms |
30 |
| 4/662 |
Restroom or bathroom self-cleaning systems |
50 |
| 4/DIG.8 |
Rubber seats |
5 |
| 4/234 |
Seat and lid |
74 |
| 4/236 |
Hinges |
125 |
| 4/235 |
Plural seats |
39 |
| 4/237 |
Seat |
143 |
| 4/241 |
Counterbalanced or spring biased |
40 |
| 4/240 |
Hinges |
101 |
| 4/238 |
Subclosure, seat operated |
5 |
| 4/239 |
Superposed |
97 |
| 4/596 |
Shower (e.g. stall, with walls, receptor, and spray) |
97 |
| 4/599 |
Collapsible or expandable |
66 |
| 4/600 |
Wall type |
18 |
| 4/597 |
Combined with diverse means |
98 |
| 4/605 |
Convenience accessories |
200 |
| 4/610 |
Mounting or supporting means for movable closure |
91 |
| 4/607 |
Movable closure |
76 |
| 4/608 |
Flexible type |
98 |
| 4/606 |
Scrubber |
102 |
| 4/609 |
Shield or guard means |
83 |
| 4/611 |
Support for user |
47 |
| 4/612 |
Particular construction |
96 |
| 4/613 |
Of receptor |
75 |
| 4/614 |
Wall or panel |
83 |
| 4/601 |
Plural spray heads |
91 |
| 4/598 |
With heating means |
33 |
| 4/602 |
With self-contained water supply |
26 |
| 4/603 |
And pump |
36 |
| 4/604 |
With special feature for physically handicapped |
58 |
| 4/903 |
|
