B01D 27/108
Flow control valves
Official title: {Flow control valves; Damping or calibrated passages}
B01D27/108 (Flow control valves) appears on 31 US grants and 36 published applications in this corpus.
Search patents in B01D- Granted patents
- 31
- Published applications
- 36
- Assignees
- 28
- Inventors
- 82
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 2 | 2 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 1 | 2 |
| 2016 | 1 | 3 |
| 2017 | 1 | 1 |
| 2018 | 3 | 2 |
| 2019 | 1 | 3 |
| 2020 | 1 | 4 |
| 2021 | 3 | 0 |
| 2022 | 2 | 1 |
| 2023 | 0 | 2 |
| 2024 | 0 | 3 |
| 2025 | 0 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Oil filter with inner and outer coaxial filter elements140US 5,342,511 ABaldwin Filters, Inc. · 1994
- Coolant filter having a delayed release supplemental coolant additive cartridge99US 5,948,248 ABaldwin Filters, Inc. · 1999
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