B01D 46/0087
Bypass or safety valves
Official title: {Bypass or safety valves}
B01D46/0087 (Bypass or safety valves) appears on 134 US grants and 129 published applications in this corpus.
Search patents in B01D- Granted patents
- 134
- Published applications
- 129
- Assignees
- 95
- Inventors
- 305
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 1 |
| 2002 | 3 | 4 |
| 2003 | 2 | 1 |
| 2004 | 3 | 3 |
| 2005 | 4 | 4 |
| 2006 | 4 | 3 |
| 2007 | 0 | 4 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 11 |
| 2012 | 2 | 3 |
| 2013 | 5 | 2 |
| 2014 | 3 | 4 |
| 2015 | 7 | 10 |
| 2016 | 5 | 6 |
| 2017 | 5 | 6 |
| 2018 | 5 | 5 |
| 2019 | 5 | 7 |
| 2020 | 8 | 9 |
| 2021 | 3 | 6 |
| 2022 | 9 | 10 |
| 2023 | 8 | 5 |
| 2024 | 5 | 11 |
| 2025 | 5 | 7 |
| 2026 | 15 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pollutant capturer and mobilizer8 Sep 2026US 12,729,640 B2
- System for reducing atmospheric pollution generated in printing house, and operation method therefor1 Sep 2026US 12,722,110 B2The Seoul Institute
- Impending bypass indicator11 Aug 2026US 12,702,945 B2Pratt & Whitney Canada Corp.
- Vacuum cleaning device4 Aug 2026US 12,697,005 B2Black & Decker Inc.
- Taking up system and process with a filter unit for the receiving of gas from a medical apparatus21 Jul 2026US 12,685,836 B2Drägerwerk AG & Co. KGaA
- Filter device and housing of battery with filter device6 Aug 2026US 2026/0225018 A1Mann+Hummel GmbH
- Impending bypass indicator4 Jun 2026US 2026/0151720 A1Pratt & Whitney Canada Corp.
- Vacuum function fume extractor addition26 Mar 2026US 2026/0084251 A1Illinois Tool Works Inc.
- Air filter and use of a filter element in an air filter18 Sep 2025US 2025/0288931 A1Mann+Hummel GmbH
- Gas valve for ventilation, a circuit for a ventilation system and a method for determining a releasing gas flow7 Aug 2025US 2025/0249202 A1Imtmedical AG
Most cited
By later US patents
- Aerosol separator and method128US 5,853,439 ADonaldson Company, Inc. · 1998
- Aerosol separator; and method111US 6,171,355 B2Donaldson Company, Inc. · 2001
- Cover member and air cleaner construction; use; and, method of assembly106US 6,419,718 B1Donaldson Company, Inc. · 2002
- Air/oil coalescer with centrifugally assisted drainage78US 6,139,595 AFleetguard, Inc. · 2000
- Aerosol separator; and method78US 7,081,145 B2Donaldson Company, Inc. · 2006