E03B 1/044
Switch valves in waste pipes
Official title: {Switch valves in waste pipes}
E03B1/044 (Switch valves in waste pipes) appears on 40 US grants and 52 published applications in this corpus.
Search patents in E03B- Granted patents
- 40
- Published applications
- 52
- Assignees
- 21
- Inventors
- 93
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 3 |
| 2011 | 0 | 1 |
| 2012 | 2 | 2 |
| 2013 | 1 | 3 |
| 2014 | 1 | 3 |
| 2015 | 0 | 1 |
| 2016 | 1 | 4 |
| 2017 | 0 | 4 |
| 2018 | 3 | 2 |
| 2019 | 1 | 1 |
| 2020 | 3 | 4 |
| 2021 | 1 | 2 |
| 2022 | 2 | 5 |
| 2023 | 3 | 3 |
| 2024 | 2 | 4 |
| 2025 | 4 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Waste-water diverter10 Feb 2026US 12,546,095 B2Revincus GmbH
- Method and controller for operating a water system and water system23 Dec 2025US 12,503,838 B2Pittway Sarl
- Rainwater reservoir11 Nov 2025US 12,467,241 B2Husqvarna AB
- Systems and methods for point of use water modification19 Aug 2025US 12,392,115 B2The Procter & Gamble Company
- Systems and methods for water re-use28 Jan 2025US 12,209,397 B2The Procter & Gamble Company
- Shower Systems and Related Methods17 Sep 2026US 2026/0275689 A1Sabbatical Designs LLC
- Water recycling system7 May 2026US 2026/0125881 A1Cascade Water Products Limited
- Waste-water diverter29 May 2025US 2025/0171984 A1Revincus GmbH
- Rainwater reservoir19 Dec 2024US 2024/0417959 A1Husqvarna AB
- System and method for recovering and reusing graywater12 Dec 2024US 2024/0410140 A1Kohler (China) Investment Co., Ltd.
Most cited
By later US patents
- Water reuse system89US 4,162,218 A1979
- Systems and methods for collecting and distributing gray water31US 6,904,926 B2Southwest Water Resources, L.L.C. · 2005
- Dual outlet bathtub drain valve for water conservation system27US 5,210,886 A1993
- Waste router recycling system23US 5,971,303 A1999
- Gray water recycling system18US 5,274,861 A1994