E03D 5/00
Special constructions of flushing devices
Official title: Special constructions of flushing devices (in motor vehicles or trailers B60R15/00; in railway carriages B61D35/00; in ships B63B29/14; in aircraft B64D11/02), {e.g. closed flushing system}
E03D5/00 (Special constructions of flushing devices) appears on 1,393 US grants and 1,290 published applications in this corpus.
Search patents in E03D- Granted patents
- 1,393
- Published applications
- 1,290
- Assignees
- 408
- Inventors
- 2,336
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 15 | 0 |
| 1978 | 6 | 0 |
| 1979 | 11 | 0 |
| 1980 | 13 | 0 |
| 1981 | 10 | 0 |
| 1982 | 12 | 0 |
| 1983 | 10 | 0 |
| 1984 | 7 | 0 |
| 1985 | 11 | 0 |
| 1986 | 18 | 0 |
| 1987 | 9 | 0 |
| 1988 | 13 | 0 |
| 1989 | 18 | 0 |
| 1990 | 18 | 0 |
| 1991 | 24 | 0 |
| 1992 | 16 | 0 |
| 1993 | 23 | 0 |
| 1994 | 29 | 0 |
| 1995 | 21 | 0 |
| 1996 | 20 | 0 |
| 1997 | 20 | 0 |
| 1998 | 15 | 0 |
| 1999 | 34 | 0 |
| 2000 | 21 | 0 |
| 2001 | 26 | 7 |
| 2002 | 25 | 19 |
| 2003 | 20 | 17 |
| 2004 | 16 | 31 |
| 2005 | 21 | 36 |
| 2006 | 22 | 38 |
| 2007 | 17 | 32 |
| 2008 | 14 | 39 |
| 2009 | 9 | 34 |
| 2010 | 12 | 62 |
| 2011 | 28 | 36 |
| 2012 | 31 | 37 |
| 2013 | 37 | 43 |
| 2014 | 22 | 58 |
| 2015 | 38 | 59 |
| 2016 | 44 | 53 |
| 2017 | 69 | 78 |
| 2018 | 66 | 85 |
| 2019 | 85 | 63 |
| 2020 | 58 | 74 |
| 2021 | 63 | 78 |
| 2022 | 50 | 72 |
| 2023 | 54 | 62 |
| 2024 | 68 | 64 |
| 2025 | 45 | 68 |
| 2026 | 37 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E03D 5/10Operated electrically578
- E03D 5/02Operated mechanically or hydraulically also details such as push buttons, levers and472
- E03D 5/01Special constructions of flushing devices: using flushing pumps135
- E03D 5/012Combined with movable closure elements in the bowl outlet121
- E03D 5/003Grey water flushing systems107
- E03D 5/016Special constructions of flushing devices: with recirculation of bowl-cleaning fluid70
- E03D 5/12Discharging periodically13
Recent patents
- Systems for human waste collection and processing29 Sep 2026US 12,747,570 B2Hamilton Sundstrand Space Systems International, Inc.
- Wall flush valve22 Sep 2026US 12,742,321 B2Kohler Co.
- Toilet flush controller15 Sep 2026US 12,735,881 B2Kohler Co.
- Lever assembly8 Sep 2026US 12,729,528 B2Fluidmaster, Inc.
- Systems for human waste collection and processing1 Sep 2026US 12,723,392 B2Hamilton Sundstrand Space Systems International, Inc.
- Pedal actuated toilet flush1 Oct 2026US 2026/0297918 A1
- Toilet24 Sep 2026US 2026/0286672 A1Kohler Co.
- Programmable flush valve controller24 Sep 2026US 2026/0286673 A1Kohler Co.
- Pneumatic drain valve driving device17 Sep 2026US 2026/0275694 A1Kohler (China) Investment Co., Ltd.
- Automatic draining device for toilet17 Sep 2026US 2026/0275695 A1
Most cited
By later US patents
- Advanced touchless plumbing systems203US 6,250,601 B1Kohler Co. · 2001
- Flush valve with an electronic sensor and solenoid valve133US 4,793,588 ACoyne & Delany Co. · 1988
- Diaphragm stop for sensor-operated, battery-powered flush valve129US 5,244,179 ASloan Valve Company · 1993
- Automatic flushing system127US 4,309,781 ASloan Valve Company · 1982
- Sensor-operated battery-powered flush valve123US 5,169,118 ASloan Valve Company · 1992