E03D 3/06
With diaphragm valve and pressure chamber for retarding the valve-closing movement
Official title: with diaphragm valve and pressure chamber for retarding the valve-closing movement
E03D3/06 (With diaphragm valve and pressure chamber for retarding the valve-closing movement) appears on 139 US grants and 120 published applications in this corpus.
Search patents in E03D- Granted patents
- 139
- Published applications
- 120
- Assignees
- 31
- Inventors
- 142
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 1 |
| 2002 | 3 | 1 |
| 2003 | 3 | 4 |
| 2004 | 2 | 10 |
| 2005 | 9 | 9 |
| 2006 | 5 | 4 |
| 2007 | 3 | 6 |
| 2008 | 2 | 5 |
| 2009 | 8 | 6 |
| 2010 | 1 | 7 |
| 2011 | 5 | 8 |
| 2012 | 6 | 4 |
| 2013 | 3 | 4 |
| 2014 | 3 | 7 |
| 2015 | 6 | 0 |
| 2016 | 4 | 7 |
| 2017 | 2 | 2 |
| 2018 | 5 | 8 |
| 2019 | 5 | 2 |
| 2020 | 7 | 6 |
| 2021 | 4 | 7 |
| 2022 | 5 | 1 |
| 2023 | 3 | 3 |
| 2024 | 0 | 2 |
| 2025 | 3 | 3 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Electro pneumatic and electromechanical actuated diaphragm type flush valve for aircraft toilet25 Mar 2025US 12,258,746 B2B/E Aerospace, Inc.
- Flush valve and motor alignment bracket5 Sep 2023US 11,746,514 B2Zurn Industries, LLC
- Flushometer System23 Apr 2026US 2026/0110161 A1Sloan Valve Company
- Flush Valve Assembly5 Mar 2026US 2026/0062906 A1AS America, Inc.
- Flush Valve Assembly5 Mar 2026US 2026/0062907 A1AS America, Inc.
- Content Detection Toilet Flush Valve18 Sep 2025US 2025/0290304 A1AS America, Inc.
- Flushing water supply control valve used in power-off state and toilet flushing assembly15 May 2025US 2025/0154755 A1Xiamen Heli Technology Co., LTD
Most cited
By later US patents
- 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 valve assembly112US 5,431,181 AZurn Industries, LLC · 1995
- Flush system110US 5,125,621 ARecurrent Solutions Limited Partnership · 1992
- Reliable flush valve105US 6,000,674 A1999