B01D 35/1576
Calibrated passages
Official title: {Calibrated passages}
B01D35/1576 (Calibrated passages) appears on 69 US grants and 76 published applications in this corpus.
Search patents in B01D- Granted patents
- 69
- Published applications
- 76
- Assignees
- 49
- Inventors
- 159
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 2 |
| 2002 | 3 | 2 |
| 2003 | 2 | 4 |
| 2004 | 2 | 3 |
| 2005 | 2 | 8 |
| 2006 | 3 | 6 |
| 2007 | 3 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 6 |
| 2010 | 2 | 5 |
| 2011 | 2 | 2 |
| 2012 | 5 | 4 |
| 2013 | 1 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 1 |
| 2016 | 2 | 2 |
| 2017 | 3 | 3 |
| 2018 | 2 | 5 |
| 2019 | 3 | 4 |
| 2020 | 4 | 3 |
| 2021 | 5 | 1 |
| 2022 | 1 | 3 |
| 2023 | 1 | 0 |
| 2024 | 3 | 0 |
| 2025 | 2 | 3 |
| 2026 | 0 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Oil filter comprising a hydraulic resistance15 Jul 2025US 12,357,928 B2C. C. Jensen A/S
- Filter device4 Feb 2025US 12,214,306 B2Yamashin-Filter Corp.
- Oil filter comprising a hydraulic resistance6 Aug 2024US 12,053,724 B2C. C. Jensen A/S
- Filter element with air-bleed conduit12 Mar 2024US 11,927,163 B2MANN+HUMMEL Filtration Technology US LLC
- Screen intake flow control and support device16 Jan 2024US 11,873,612 B2Johnson Screens, Inc.
- Filter for hydraulic fluids for hydraulic circuits18 Jun 2026US 2026/0166451 A1Mp Filtri S.P.A.
- Filter for hydraulic fluids for hydraulic circuits19 Mar 2026US 2026/0077281 A1Mp Filtri S.P.A.
- Filter for hydraulic fluids for hydraulic circuits12 Mar 2026US 2026/0070005 A1Mp Filtri S.P.A.
- Filter for hydraulic fluids for hydraulic circuits12 Mar 2026US 2026/0070006 A1Mp Filtri S.P.A.
- Fully submersed block style primary water filter4 Dec 2025US 2025/0367579 A1
Most cited
By later US patents
- Slow release coolant filter99US 5,662,799 AFleetguard, Inc. · 1997
- Fuel filter with dual flow80US 6,113,781 AParker-Hannifin Corporation · 2000
- Filtering apparatus72US 6,596,165 B2Parker-Hannifin Corporation · 2003
- Filter cartridge for a fuel filter having a keyed latch shut-off valve67US 6,495,042 B1Parker-Hannifin Corporation · 2002
- Filter apparatus63US 4,698,164 AKinetico Incorporated · 1987