E03D 1/22
Twin or multiple flushing cisterns
E03D1/22 (Twin or multiple flushing cisterns) appears on 37 US grants and 21 published applications in this corpus.
Search patents in E03D- Granted patents
- 37
- Published applications
- 21
- Assignees
- 13
- Inventors
- 52
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 1 |
| 2002 | 1 | 0 |
| 2003 | 2 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 3 |
| 2011 | 2 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 0 |
| 2017 | 4 | 2 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 2 |
| 2024 | 2 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for flushing an object13 Jan 2026US 12,523,029 B2P & C Hennessy Holdings, Inc.
- Regulating device for regulating water consumption of concealed water tank16 Apr 2024US 11,959,265 B2Zhongshan Meitu Plastic Ind. Co., Ltd.
- Flushing assembly, water supply assembly, lower position water suction assembly, water tank, check valve for use in a toilet, and method, device, and storage medium for controlling toilet water consumption9 Apr 2024US 11,952,762 B2Shanghai Kohler Electronics, Ltd.
- Flushing assembly, water supply assembly, lower position water suction assembly, water tank, check valve for use in a toilet, and method, device, and storage medium for controlling toilet water consumption7 Mar 2023US 11,598,078 B2Shanghai Kohler Electronics, Ltd.
- Pressurized toilet30 Aug 2022US 11,427,994 B2AS America, Inc.
- Flushing assembly, water supply assembly, lower position water suction assembly, water tank, check valve for use in a toilet, and method, device, and storage medium for controlling toilet water consumption18 Jul 2024US 2024/0240443 A1Shanghai Kohler Electronics, Ltd.
- System and method for flusing an object13 Jun 2024US 2024/0191484 A1P & C Hennessy Holdings, Inc.
- Flushing assembly, water supply assembly, lower position water suction assembly, water tank, check valve for use in a toilet, and method, device, and storage medium for controlling toilet water consumption15 Jun 2023US 2023/0183960 A1Shanghai Kohler Electronics, Ltd.
- Regulating device for regulating water consumption of concealed water tank23 Feb 2023US 2023/0057200 A1Zhongshan Meitu Plastic Ind. Co., Ltd.
- Flushing assembly, water supply assembly, lower position water suction assembly, water tank, check valve for use in a toilet, and method, device, and storage medium for controlling toilet water consumption1 Sep 2022US 2022/0275617 A1Shanghai Kohler Electronics, Ltd.
Most cited
By later US patents