E03D 9/16
Water pressure regulating means in flushing pipes
E03D9/16 (Water pressure regulating means in flushing pipes) appears on 12 US grants and 11 published applications in this corpus.
Search patents in E03D- Granted patents
- 12
- Published applications
- 11
- Assignees
- 8
- Inventors
- 27
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 5 |
| 2019 | 1 | 0 |
| 2020 | 3 | 0 |
| 2021 | 1 | 2 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-head fluidic oscillators4 Aug 2026US 12,698,623 B2Kohler Co.
- Closestool flushing system with flow increasing device21 Apr 2026US 12,607,002 B2Esmart (Xiamen) Technology Co., Ltd.
- Water-saving siphonic toilet and equalization system therefor6 May 2025US 12,291,857 B2P & C Hennessy Holdings, Inc.
- Outlet aperture arrangements10 Sep 2024US 12,084,845 B2Flusheco Limited
- Vacuum clog toilet removal apparatus7 Sep 2021US 11,110,494 B2
- Closestool flushing system with flow increasing device27 Mar 2025US 2025/0101729 A1Esmart (Xiamen) Technology Co., Ltd.
- Multi-head fluidic oscillators23 Jan 2025US 2025/0027312 A1Kohler Co.
- Outlet aperture arrangements27 Apr 2023US 2023/0131955 A1Flusheco Limited
- Water-saving siphonic toilet and equalization system therefor13 May 2021US 2021/0140162 A1P & C Hennessy Holdings, Inc.
- Vacuum clog toilet removal apparatus7 Jan 2021US 2021/0001384 A1
Most cited
By later US patents
- Flush water supply system for toilet stool24US 5,204,999 AToto Ltd. · 1993
- Flush water supply system for toilet stool12US 5,109,550 AToto Ltd. · 1992
- Volume controllable toilet flush systems and methods of use1US 10,036,152 B22018
- Device having a throttle for reducing the flushing stream from a sanitary flush box, drain valve and sanitary flush box comprising a device of this type1US 10,578,217 B2Viega Technology GmbH & Co. KG · 2020