E03D 1/00
Water flushing devices with cisterns
Official title: Water flushing devices with cisterns {; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices}
E03D1/00 (Water flushing devices with cisterns) appears on 1,466 US grants and 1,080 published applications in this corpus.
Search patents in E03D- Granted patents
- 1,466
- Published applications
- 1,080
- Assignees
- 333
- Inventors
- 1,924
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 38 | 0 |
| 1977 | 25 | 0 |
| 1978 | 28 | 0 |
| 1979 | 31 | 0 |
| 1980 | 24 | 0 |
| 1981 | 11 | 0 |
| 1982 | 16 | 0 |
| 1983 | 12 | 0 |
| 1984 | 15 | 0 |
| 1985 | 14 | 0 |
| 1986 | 14 | 0 |
| 1987 | 15 | 0 |
| 1988 | 9 | 0 |
| 1989 | 24 | 0 |
| 1990 | 26 | 0 |
| 1991 | 27 | 0 |
| 1992 | 28 | 0 |
| 1993 | 43 | 0 |
| 1994 | 31 | 0 |
| 1995 | 25 | 0 |
| 1996 | 25 | 0 |
| 1997 | 30 | 0 |
| 1998 | 35 | 0 |
| 1999 | 44 | 0 |
| 2000 | 28 | 0 |
| 2001 | 27 | 6 |
| 2002 | 28 | 24 |
| 2003 | 28 | 26 |
| 2004 | 25 | 30 |
| 2005 | 19 | 36 |
| 2006 | 12 | 33 |
| 2007 | 18 | 27 |
| 2008 | 9 | 30 |
| 2009 | 10 | 37 |
| 2010 | 14 | 58 |
| 2011 | 21 | 40 |
| 2012 | 38 | 32 |
| 2013 | 22 | 46 |
| 2014 | 28 | 33 |
| 2015 | 29 | 49 |
| 2016 | 38 | 52 |
| 2017 | 62 | 61 |
| 2018 | 46 | 54 |
| 2019 | 69 | 49 |
| 2020 | 55 | 61 |
| 2021 | 52 | 68 |
| 2022 | 47 | 58 |
| 2023 | 36 | 50 |
| 2024 | 55 | 38 |
| 2025 | 40 | 47 |
| 2026 | 20 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E03D 1/30Valves for high or low level cisterns764
- E03D 1/02High-level flushing systems621
- E03D 1/24Low-level flushing systems131
- E03D 1/01Shape or selection of material for flushing cisterns87
- E03D 1/003Cisterns in combination with wash-basins, urinals, or the like57
- E03D 1/38Adaptations or arrangements of flushing pipes35
- E03D 1/006Realisations of and provisions for preventing "sweating" of cisterns8
Recent patents
- Water flow shutoff system6 Oct 2026US 12,753,597 B1Liquified Solutions, LLC
- Flush toilet15 Sep 2026US 12,735,882 B2Global One Tech Corporation
- Connected faucet systems25 Aug 2026US 12,716,221 B2AS America, Inc.
- Flush engine11 Aug 2026US 12,703,971 B2Kohler Co.
- Omni configured flapper systems and packaging7 Jul 2026US 12,673,810 B2Fluidmaster, Inc.
- Flush toilet1 Oct 2026US 2026/0297916 A1Toto Ltd.
- Flush toilet1 Oct 2026US 2026/0297917 A1Toto Ltd.
- Toilet24 Sep 2026US 2026/0286672 A1Kohler Co.
- Pneumatic drain valve driving device17 Sep 2026US 2026/0275694 A1Kohler (China) Investment Co., Ltd.
- Clean toilet and accessories10 Sep 2026US 2026/0266036 A1Kohler Co.
Most cited
By later US patents