B01D 27/103
Bypass or safety valves
Official title: {Bypass or safety valves}
B01D27/103 (Bypass or safety valves) appears on 162 US grants and 151 published applications in this corpus.
Search patents in B01D- Granted patents
- 162
- Published applications
- 151
- Assignees
- 94
- Inventors
- 347
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 8 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 5 |
| 2003 | 3 | 6 |
| 2004 | 3 | 4 |
| 2005 | 3 | 8 |
| 2006 | 1 | 7 |
| 2007 | 2 | 12 |
| 2008 | 1 | 8 |
| 2009 | 1 | 3 |
| 2010 | 3 | 5 |
| 2011 | 3 | 2 |
| 2012 | 4 | 6 |
| 2013 | 3 | 5 |
| 2014 | 6 | 5 |
| 2015 | 3 | 8 |
| 2016 | 3 | 11 |
| 2017 | 7 | 5 |
| 2018 | 5 | 13 |
| 2019 | 5 | 7 |
| 2020 | 4 | 7 |
| 2021 | 6 | 6 |
| 2022 | 5 | 3 |
| 2023 | 9 | 9 |
| 2024 | 3 | 1 |
| 2025 | 3 | 4 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water treatment system and method4 Aug 2026US 12,697,567 B2Drops Tech 2015 Ltd
- Filter valve assembly13 Jan 2026US 12,521,657 B2Collins Engine Nozzles, Inc.
- Filter valve assembly2 Dec 2025US 12,485,373 B2Collins Engine Nozzles, Inc.
- Torsional no filter no run system8 Jul 2025US 12,350,611 B2Cummins Filtration IP, Inc.
- Filter assembly with sedimentation pocket1 Apr 2025US 12,263,432 B2Pratt & Whitney Canada Corp.
- Systems for detection of bypass valve actuation using pressure data13 Aug 2026US 2026/0233130 A1Donaldson Company, Inc.
- Filter valve assembly27 Nov 2025US 2025/0360437 A1Collins Engines Nozzles, Inc.
- Faucet-mounted water filter with adjustable filtered water stream direction25 Sep 2025US 2025/0296018 A1
- Filter cartridge with offset outlet and integrated bypass12 Jun 2025US 2025/0186911 A1Cummins Filtration Inc.
- Quick oil change filter and assembly13 Mar 2025US 2025/0083074 A1Briggs & Stratton Corporation
Most cited
By later US patents
- Masking elements for dissolving oil improving body in an oil filter146US 4,075,098 AMonroe Auto Equipment Company · 1978
- Oil filter with oil improving dissolving body139US 4,075,097 AMonroe Auto Equipment Company · 1978
- Apparatus for filtering impurities out of fluid118US 6,478,958 B1Baldwin Filters, Inc. · 2002
- Lubricant filter for internal combustion engines98US 4,755,289 ATecnocar S p A · 1988
- Apparatus for filtering impurities out of fluid96US 6,787,033 B2Baldwin Filters, Inc. · 2004