| Class Number |
Class Name |
Patents |
| 4/209R |
Ventilation |
42 |
| 4/222 |
Disinfection |
141 |
| 4/234 |
Seat and lid |
75 |
| 4/237 |
Seat |
144 |
| 4/242.1 |
Lid |
28 |
| 4/243.1 |
Mechanism positions cover on seat |
17 |
| 4/244.1 |
Cover dispenser |
15 |
| 4/245.1 |
Cover for seat |
30 |
| 4/246.1 |
Opener or closer for a closet seat or lid |
197 |
| 4/248 |
Buffers and dashpots |
65 |
| 4/249 |
Flush-valve operators |
65 |
| 4/251.1 |
Drip catcher |
29 |
| 4/252.1 |
Flush closet bowl support, coupling, seal or fastener |
89 |
| 4/253 |
Closet-bowl closures |
50 |
| 4/254 |
Closet head, foot, and body rests |
151 |
| 4/255.01 |
Obstruction remover |
77 |
| 4/256.1 |
Debris catcher for a flush closet or clean out plug |
36 |
| 4/258 |
Spittoons |
17 |
| 4/286 |
Strainer, stopper, plug or closure |
139 |
| 4/300 |
Flush closet |
134 |
| 4/443 |
Bidets |
118 |
| 4/449 |
Dry closets |
120 |
| 4/487 |
Open-water barrier |
22 |
| 4/488 |
Pool type |
111 |
| 4/514 |
Convertible class-type apparatus |
10 |
| 4/515 |
Hair washing machine or device or accessory |
48 |
| 4/524 |
Vapor or heat in bath (e.g., sauna, steam bath, or sudatorium) |
70 |
| 4/535 |
Means for applying vapor or hot air directly to body of user |
15 |
| 4/538 |
Tubs |
75 |
| 4/596 |
Shower (e.g. stall, with walls, receptor, and spray) |
101 |
| 4/615 |
Means for spraying user |
227 |
| 4/619 |
Wash receptacles |
112 |
| 4/661 |
Miscellaneous |
438 |
| 4/662 |
Restroom or bathroom self-cleaning systems |
51 |
| 4/663 |
Flush closet, wash receptacle, and bathtub or shower |
48 |
| 4/664 |
Flush closet or urinal and wash receptacle |
66 |
| 4/666 |
Diaper washing devices |
7 |
| 4/667 |
Flush closet seat assist to raise user |
58 |
| 4/668 |
Having condition responsive supply outlet, drain, overflow or trap for a sink or bath |
58 |
| 4/670 |
Prefabricated (e.g., modular) plumbing system |
14 |
| 4/671 |
Supply outlet combined with a drain, overflow or trap for a sink or bath |
11 |
| 4/675 |
Supply outlet for a sink or bath |
120 |
| 4/679 |
Drain, overflow or trap for a sink or bath |
137 |
| 4/695 |
Support or mount for a supply, drain, overflow or trap means |
104 |
| 4/696 |
Fitting or manifold for a sink or bath |
63 |
| 4/900 |
Decontamination shower |
17 |
| 4/901 |
Bowl skirt or tank cover |
9 |
| 4/902 |
Toilet training |
39 |
| 4/903 |
Shower head with material dispensing |
28 |
| 4/904 |
Swim-in-place pool |
16 |
| 4/905 |
Squat bowl |
4 |
| 4/DIG.1 |
Plural connected floats |
11 |
| 4/DIG.10 |
Water additive or substitute |
9 |
| 4/DIG.11 |
Oil toilet |
13 |
| 4/DIG.12 |
Aerobic (decomposing) toilet |
41 |
| 4/DIG.13 |
Toilet having deformable trap |
9 |
| 4/DIG.14 |
Pipe strainers |
36 |
| 4/DIG.15 |
Prison bathrooms |
30 |
| 4/DIG.16 |
Deformable toilet traps |
11 |
| 4/DIG.17 |
Electrolytic toilets |
1 |
| 4/DIG.18 |
Bathroom fixture liners |
41 |
| 4/DIG.19 |
Liquid-solid separators |
26 |
| 4/DIG.2 |
Disappearing bowl |
20 |
| 4/DIG.3 |
Electric flushing |
104 |
| 4/DIG.4 |
Garbage grinder |
16 |
| 4/DIG.5 |
Urine guards |
55 |
| 4/DIG.6 |
Heated seats |
18 |
| 4/DIG.7 |
House plumbing fittings |
26 |
| 4/DIG.8 |
Rubber seats |
5 |
| 4/DIG.9 |
Methods |
48 |
