E03D 5/01
Special constructions of flushing devices: using flushing pumps
Official title: using flushing pumps
E03D5/01 (Special constructions of flushing devices: using flushing pumps) appears on 135 US grants and 127 published applications in this corpus.
Search patents in E03D- Granted patents
- 135
- Published applications
- 127
- Assignees
- 54
- Inventors
- 281
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 4 |
| 2009 | 0 | 2 |
| 2010 | 1 | 3 |
| 2011 | 2 | 1 |
| 2012 | 2 | 1 |
| 2013 | 5 | 4 |
| 2014 | 0 | 3 |
| 2015 | 1 | 9 |
| 2016 | 3 | 6 |
| 2017 | 9 | 10 |
| 2018 | 4 | 8 |
| 2019 | 16 | 2 |
| 2020 | 5 | 12 |
| 2021 | 5 | 10 |
| 2022 | 15 | 16 |
| 2023 | 10 | 7 |
| 2024 | 9 | 4 |
| 2025 | 6 | 11 |
| 2026 | 2 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Environmentally sustainable systems and methods of toilet flushing and blackwater disposal17 Mar 2026US 12,577,769 B2Home Biogas Ltd
- Toilet10 Mar 2026US 12,571,193 B2Lixil (China) Investment Co., Ltd.
- Flush toilet16 Dec 2025US 12,497,771 B2Toto Ltd.
- Method and device for removing a chemical substance from human excreta25 Nov 2025US 12,478,226 B2Beam-IP B.V.
- Closestool type urine and excrement detection robot and internet-of-things system28 Oct 2025US 12,453,537 B2
- Wall-hung flush toilet9 Jul 2026US 2026/0193874 A1Toto Ltd.
- Toilet with dual nozzle and distribution plate18 Jun 2026US 2026/0168226 A1Kohler Co.
- Piston toilet4 Jun 2026US 2026/0152934 A1Kohler India Corporation Private Limited
- Flush toilet28 May 2026US 2026/0146429 A1Toto Ltd.
- Flush toilet apparatus28 May 2026US 2026/0146430 A1Toto Ltd.
Most cited
By later US patents
- Self-contained RV sanitary systems46US 4,776,631 AThetford Corporation · 1988
- Recreational vehicle use system particularly tank installation30US 4,974,899 AThetford Corporation · 1990
- Multi-phase, high energy flushing system26US 8,032,956 B2Ideal Standard International BVBA · 2011
- Human waste storage and disposal systems for railroads or the like22US 4,214,324 AMonogram Industries, Inc. · 1980
- Flush toilet21US 4,710,988 ASanitation Equipment Limited · 1987