E03D 1/142
In cisterns with flushing valves
Official title: {in cisterns with flushing valves}
E03D1/142 (In cisterns with flushing valves) appears on 426 US grants and 188 published applications in this corpus.
Search patents in E03D- Granted patents
- 426
- Published applications
- 188
- Assignees
- 82
- Inventors
- 554
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 16 | 0 |
| 1978 | 18 | 0 |
| 1979 | 15 | 0 |
| 1980 | 15 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 8 | 0 |
| 1984 | 8 | 0 |
| 1985 | 7 | 0 |
| 1986 | 6 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 13 | 0 |
| 1990 | 12 | 0 |
| 1991 | 12 | 0 |
| 1992 | 14 | 0 |
| 1993 | 23 | 0 |
| 1994 | 12 | 0 |
| 1995 | 14 | 0 |
| 1996 | 14 | 0 |
| 1997 | 15 | 0 |
| 1998 | 13 | 0 |
| 1999 | 17 | 0 |
| 2000 | 8 | 0 |
| 2001 | 6 | 2 |
| 2002 | 9 | 13 |
| 2003 | 13 | 7 |
| 2004 | 8 | 10 |
| 2005 | 5 | 11 |
| 2006 | 1 | 7 |
| 2007 | 3 | 3 |
| 2008 | 2 | 8 |
| 2009 | 2 | 6 |
| 2010 | 2 | 16 |
| 2011 | 4 | 10 |
| 2012 | 7 | 7 |
| 2013 | 4 | 6 |
| 2014 | 4 | 3 |
| 2015 | 2 | 11 |
| 2016 | 6 | 7 |
| 2017 | 12 | 6 |
| 2018 | 7 | 7 |
| 2019 | 5 | 10 |
| 2020 | 7 | 5 |
| 2021 | 9 | 9 |
| 2022 | 6 | 4 |
| 2023 | 2 | 6 |
| 2024 | 7 | 5 |
| 2025 | 4 | 5 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pneumatic drain valve driving device2 Jun 2026US 12,644,267 B2Kohler (China) Investment Co., Ltd.
- Discharge valve device, flush water tank device, and flush toilet16 Sep 2025US 12,416,142 B2Toto Ltd.
- Dual-control flushing device9 Sep 2025US 12,410,597 B2
- Flush water tank device and flush toilet apparatus provided with the same25 Mar 2025US 12,258,744 B2Toto Ltd.
- Flush valve and toilet assembly25 Feb 2025US 12,234,629 B2AS America, Inc.
- Pneumatic drain valve driving device17 Sep 2026US 2026/0275694 A1Kohler (China) Investment Co., Ltd.
- Hydraulically controlled flushing device20 Aug 2026US 2026/0243073 A1Aspic
- Toilet device, flushing system and flushing method therefor16 Apr 2026US 2026/0103876 A1Jomoo Kitchen & Bath Deutschland GmbH
- Flush Valve Assembly1 Jan 2026US 2026/0002348 A1AS America, Inc.
- Flush water tank device, and flush toilet apparatus including the same4 Sep 2025US 2025/0277358 A1
Most cited
By later US patents
- Adapter for toilet fitting88US 5,090,066 AFluidmaster, Inc. · 1992
- Flushing apparatus with selective quantity control60US 4,392,260 A1983
- Water saving device for water closet52US 4,145,775 AAmerican Water Engineering Corporation · 1979
- Dual mode flush valve assembly50US 4,651,359 A1987
- Water saving device for water closet45US 4,764,996 A1988