B01D 46/106
Ring-shaped filtering elements
Official title: {Ring-shaped filtering elements}
B01D46/106 (Ring-shaped filtering elements) appears on 79 US grants and 89 published applications in this corpus.
Search patents in B01D- Granted patents
- 79
- Published applications
- 89
- Assignees
- 67
- Inventors
- 266
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 3 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 4 |
| 2011 | 2 | 2 |
| 2012 | 7 | 4 |
| 2013 | 1 | 2 |
| 2014 | 3 | 3 |
| 2015 | 3 | 2 |
| 2016 | 2 | 3 |
| 2017 | 1 | 5 |
| 2018 | 3 | 5 |
| 2019 | 4 | 6 |
| 2020 | 8 | 16 |
| 2021 | 5 | 7 |
| 2022 | 5 | 8 |
| 2023 | 5 | 5 |
| 2024 | 2 | 5 |
| 2025 | 5 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for manufacturing a metallic functional part delimiting a porous filtering medium, using an additive manufacturing method, and obtained functional part25 Aug 2026US 12,714,960 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Respirator19 Aug 2025US 12,390,672 B2
- Filter element comprising a filter medium folded in a zig-zag-shape with discontinuous end-edge bonding, and method for producing same19 Aug 2025US 12,390,752 B2Mann+Hummel GmbH
- Wearable air purifier27 May 2025US 12,311,204 B2Dyson Technology Limited
- Gas phase settling (GPS) tray27 May 2025US 12,311,306 B2Shell USA, Inc.
- Condensate separator of an air conditioning system6 Aug 2026US 2026/0225023 A1Axiom Space, Inc.
- Method for manufacturing a metallic functional part delimiting a porous filtering medium, using an additive manufacturing method, and obtained functional part12 Jun 2025US 2025/0186918 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Method for manufacturing a metallic functional part delimiting a porous filtering medium, using an additive manufacturing method, and obtained functional part12 Jun 2025US 2025/0186919 A1Commisssariat A L'Energie Atomique Et Aux Energies Alternatives
- Pcv valve system and method14 Nov 2024US 2024/0376838 A1
- Folded filter medium28 Mar 2024US 2024/0100463 A1Mann+Hummel GmbH
Most cited
By later US patents
- Quick-change filter cartridge and head therefor175US 4,735,716 ACuno Corporated · 1988
- Pleated filter media having a continuous bead of adhesive between layers of filtering material127US 5,240,479 ADonaldson Company, Inc. · 1993
- Quick-change filter cartridge and head therefor88US 4,948,505 ACuno Incorporated · 1990
- Surgery plume filter device and method of filtering43US 5,910,291 AEnviroSurgical, Inc. · 1999
- Particulate air filter assembly42US 4,548,626 AFiggie International Inc. · 1985