E03D 5/016
Special constructions of flushing devices: with recirculation of bowl-cleaning fluid
Official title: with recirculation of bowl-cleaning fluid
E03D5/016 (Special constructions of flushing devices: with recirculation of bowl-cleaning fluid) appears on 70 US grants and 34 published applications in this corpus.
Search patents in E03D- Granted patents
- 70
- Published applications
- 34
- Assignees
- 31
- Inventors
- 138
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 3 |
| 2014 | 1 | 2 |
| 2015 | 3 | 1 |
| 2016 | 1 | 0 |
| 2017 | 2 | 2 |
| 2018 | 0 | 1 |
| 2019 | 1 | 2 |
| 2020 | 1 | 4 |
| 2021 | 4 | 3 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 1 | 2 |
| 2025 | 2 | 4 |
| 2026 | 4 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems for human waste collection and processing29 Sep 2026US 12,747,570 B2Hamilton Sundstrand Space Systems International, Inc.
- Systems for human waste collection and processing1 Sep 2026US 12,723,392 B2Hamilton Sundstrand Space Systems International, Inc.
- Systems for human waste collection and processing10 Mar 2026US 12,571,194 B2Hamilton Sundstrand Space Systems International, Inc.
- Systems for human waste collection and processing10 Mar 2026US 12,571,195 B2Hamilton Sundstrand Space Systems International, Inc.
- Portable toilet system and mechanisms2 Dec 2025US 12,485,936 B1
- Systems for human waste collection and processing14 Aug 2025US 2025/0256866 A1Hamilton Sundstrand Space Systems International, Inc.
- Systems for human waste collection and processing14 Aug 2025US 2025/0257554 A1Hamilton Sundstrand Space Systems International, Inc.
- Systems for human waste collection and processing14 Aug 2025US 2025/0257555 A1Hamilton Sundstrand Space Systems International, Inc.
- Systems for human waste collection and processing14 Aug 2025US 2025/0257556 A1Hamilton Sundstrand Space Systems International, Inc.
- Universal commode system8 Aug 2024US 2024/0261707 A1Hamilton Sundstrand Corporation
Most cited
By later US patents
- Vacuum toilet system70US 3,995,328 AThe Boeing Company · 1976
- Vacuum toilet system63US 4,063,315 AThe Boeing Company · 1977
- Recirculating sewerage system28US 4,017,395 AKoehler-Dayton, Inc. · 1977
- Waste treatment and water recycling toilet system28US 4,904,387 AThetford Corporation · 1990
- Multiple recirculating toilet27US 3,994,628 AMonogram Industries, Inc. · 1976