E03D 9/02
Devices adding a disinfecting, deodorising, or cleaning agent to the water while
Official title: Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing (apparatus for disinfection A61L2/00; treatment of water in general C02F)
E03D9/02 (Devices adding a disinfecting, deodorising, or cleaning agent to the water while) appears on 519 US grants and 439 published applications in this corpus.
Search patents in E03D- Granted patents
- 519
- Published applications
- 439
- Assignees
- 180
- Inventors
- 962
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 8 | 0 |
| 1980 | 11 | 0 |
| 1981 | 13 | 0 |
| 1982 | 9 | 0 |
| 1983 | 6 | 0 |
| 1984 | 18 | 0 |
| 1985 | 14 | 0 |
| 1986 | 7 | 0 |
| 1987 | 11 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 8 | 0 |
| 1991 | 11 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 10 | 0 |
| 1998 | 9 | 0 |
| 1999 | 10 | 0 |
| 2000 | 7 | 0 |
| 2001 | 16 | 2 |
| 2002 | 9 | 10 |
| 2003 | 16 | 10 |
| 2004 | 9 | 24 |
| 2005 | 11 | 14 |
| 2006 | 11 | 16 |
| 2007 | 2 | 20 |
| 2008 | 2 | 16 |
| 2009 | 3 | 22 |
| 2010 | 4 | 24 |
| 2011 | 9 | 21 |
| 2012 | 17 | 13 |
| 2013 | 13 | 14 |
| 2014 | 14 | 17 |
| 2015 | 7 | 13 |
| 2016 | 16 | 19 |
| 2017 | 17 | 17 |
| 2018 | 7 | 24 |
| 2019 | 22 | 15 |
| 2020 | 18 | 26 |
| 2021 | 16 | 20 |
| 2022 | 15 | 21 |
| 2023 | 12 | 18 |
| 2024 | 15 | 10 |
| 2025 | 13 | 24 |
| 2026 | 12 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E03D 9/03Consisting of a separate container with an outlet through which the agent448
- E03D 2009/024Using a solid substanceIndexing code184
- E03D 2009/028Using a liquid substanceIndexing code101
- E03D 9/022Consisting of solid substances introduced in the bowl or the supply line30
- E03D 2009/026Using a gel-form substanceIndexing code27
Recent patents
- Electrochemical cell26 May 2026US 12,637,370 B2Imperial College Innovations Limited
- Clean toilet and accessories26 May 2026US 12,637,851 B2Kohler Co.
- Automatic and hands-free toilet deodorizer and cleaner12 May 2026US 12,624,537 B1
- Dissolver for cleaning tablet in water tank of toilet12 May 2026US 12,624,538 B2Lab (Xiamen) Sanitary Fittings Inc.
- Sanitary agent in gel form for preventing biofilms21 Apr 2026US 12,606,775 B2Henkel AG & Co. KGaA
- Electrochemical cell8 Oct 2026US 2026/0308024 A1Imperial College Innovations Limited
- Clean toilet and accessories10 Sep 2026US 2026/0266036 A1Kohler Co.
- Device for cleaning a toilet bowl13 Aug 2026US 2026/0234922 A1Toibot Ltd.
- Urinal9 Jul 2026US 2026/0193875 A1Lixil (China) Investment Co., Ltd.
- Toilet water treament4 Jun 2026US 2026/0152936 A1Kohler Co.
Most cited
By later US patents
- Chemical dispensing apparatus having a pivotal actuator106US 5,823,390 ATechnical Concepts, LLC · 1998
- Automatic flush valve actuation apparatus for replacing manual flush handles75US 5,680,879 ATechnical Concepts, LLC · 1997
- Urinal screen and deodorant cake holder63US 4,574,403 ACompuguide Chemical Corporation · 1986
- Dispensing device59US 6,510,561 B1Reckitt Benckiser (UK) Limited · 2003
- Self-cleaning toilet56US 4,183,105 A1980