E03D
Water-closets or urinals with flushing devices
Official title: Water-closets or urinals with flushing devices; flushing valves therefor
E03D (Water-closets or urinals with flushing devices) appears on 5,819 US grants and 5,197 published applications in this corpus.
Search patents in E03D- Granted patents
- 5,819
- Published applications
- 5,197
- Assignees
- 1,323
- Inventors
- 8,498
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 96 | 0 |
| 1977 | 79 | 0 |
| 1978 | 75 | 0 |
| 1979 | 80 | 0 |
| 1980 | 81 | 0 |
| 1981 | 54 | 0 |
| 1982 | 53 | 0 |
| 1983 | 43 | 0 |
| 1984 | 59 | 0 |
| 1985 | 69 | 0 |
| 1986 | 66 | 0 |
| 1987 | 58 | 0 |
| 1988 | 51 | 0 |
| 1989 | 84 | 0 |
| 1990 | 91 | 0 |
| 1991 | 107 | 0 |
| 1992 | 85 | 0 |
| 1993 | 119 | 0 |
| 1994 | 116 | 0 |
| 1995 | 84 | 0 |
| 1996 | 83 | 0 |
| 1997 | 94 | 0 |
| 1998 | 110 | 0 |
| 1999 | 141 | 0 |
| 2000 | 104 | 0 |
| 2001 | 111 | 29 |
| 2002 | 125 | 91 |
| 2003 | 106 | 102 |
| 2004 | 108 | 159 |
| 2005 | 92 | 186 |
| 2006 | 80 | 185 |
| 2007 | 75 | 161 |
| 2008 | 59 | 162 |
| 2009 | 47 | 159 |
| 2010 | 61 | 223 |
| 2011 | 104 | 185 |
| 2012 | 153 | 166 |
| 2013 | 119 | 196 |
| 2014 | 118 | 210 |
| 2015 | 142 | 221 |
| 2016 | 191 | 233 |
| 2017 | 218 | 269 |
| 2018 | 219 | 297 |
| 2019 | 281 | 242 |
| 2020 | 207 | 274 |
| 2021 | 204 | 281 |
| 2022 | 189 | 264 |
| 2023 | 185 | 249 |
| 2024 | 218 | 238 |
| 2025 | 192 | 241 |
| 2026 | 133 | 174 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- E03D 9/00Sanitary or other accessories for lavatories2,282
- E03D 11/00Water-closets or urinals with flushing devices: other component parts of water-closets1,489
- E03D 1/00Water flushing devices with cisterns1,466
- E03D 5/00Special constructions of flushing devices1,393
- E03D 3/00Flushing devices operated by pressure of the water supply system flushing valves517
- E03D 13/00Urinals369
- E03D 2201/00Details and methods of use for water closets and urinals not otherwiseIndexing code312
- E03D 7/00Wheeled lavatories59
Recent patents
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- Systems for human waste collection and processing29 Sep 2026US 12,747,570 B2Hamilton Sundstrand Space Systems International, Inc.
- Long-Handled Reusable In-Bowl Toilet Cleaning Tablet Cartridge for Sustained Cleaning8 Oct 2026US 2026/0305888 A1
- Retrofittable sanitary plumbing fixture and assembly thereof with odor control and method of installing and retrofitting using the same8 Oct 2026US 2026/0305890 A1
- Electrochemical cell8 Oct 2026US 2026/0308024 A1Imperial College Innovations Limited
- Cleaning routine for a bidet nozzle of an integrated toilet-bidet unit, and sanitary unit for a public transport vehicle8 Oct 2026US 2026/0308898 A1Siemens Mobility GmbH
- Sealing ring for toilet8 Oct 2026US 2026/0308899 A1
Most cited
By later US patents
- Toilet device with system for inspecting health conditions226US 5,111,539 AToto Ltd. · 1992
- Advanced touchless plumbing systems203US 6,250,601 B1Kohler Co. · 2001
- Automated bathroom193US 4,563,780 A1986
- Leak Detector148US 7,383,721 B2Arichell Technologies, Inc. · 2008
- Flush valve with an electronic sensor and solenoid valve133US 4,793,588 ACoyne & Delany Co. · 1988