B01D 2313/041
Gaskets or o-rings
Official title: Gaskets or O-rings
B01D2313/041 (Gaskets or o-rings) appears on 229 US grants and 307 published applications in this corpus.
Search patents in B01D- Granted patents
- 229
- Published applications
- 307
- Assignees
- 193
- Inventors
- 705
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 3 |
| 2004 | 0 | 3 |
| 2005 | 1 | 7 |
| 2006 | 1 | 5 |
| 2007 | 2 | 6 |
| 2008 | 2 | 8 |
| 2009 | 5 | 5 |
| 2010 | 1 | 10 |
| 2011 | 8 | 10 |
| 2012 | 6 | 9 |
| 2013 | 8 | 14 |
| 2014 | 7 | 12 |
| 2015 | 9 | 18 |
| 2016 | 6 | 15 |
| 2017 | 17 | 20 |
| 2018 | 13 | 12 |
| 2019 | 11 | 21 |
| 2020 | 18 | 20 |
| 2021 | 13 | 24 |
| 2022 | 13 | 20 |
| 2023 | 18 | 16 |
| 2024 | 13 | 23 |
| 2025 | 10 | 14 |
| 2026 | 9 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Filter apparatus with vented core, electrostatic discharge mitigation, or both18 Aug 2026US 12,708,867 B2Entegris, Inc.
- Formed sheet membrane element and filtration system4 Aug 2026US 12,697,586 B2Fibracast Ltd.
- Flat sheet membrane filtration module with cylindrical housing28 Jul 2026US 12,691,416 B2Thetis Environmental Inc.
- Filter holder for extrusion of liposomes28 Jul 2026US 12,691,421 B2Evonik Operations GmbH
- Filtration device23 Jun 2026US 12,661,618 B2Gambro Lundia AB
- Cassette1 Oct 2026US 2026/0295537 A1Donaldson Company, Inc.
- Tangential flow filtration manifold assembly23 Jul 2026US 2026/0208113 A1Merck Patent GmbH
- Electrodialysis device and method for manufacturing same4 Jun 2026US 2026/0151737 A1Posco Holdings Inc.
- Systems and methods for tangential flow depth filtration21 May 2026US 2026/0138096 A1Repligen Corporation
- Systems and methods for integrated modular production of hydrogen freshwater, and bioelectricity23 Apr 2026US 2026/0110100 A1
Most cited
By later US patents
- Membrane filtration device having a hygienic suspension arrangement125US 9,776,138 B2Tetra Laval Holdings & Finance S. A. · 2017
- Sterile fluid filtration cartridge and method for using same95US 6,635,179 B1Nephros, Inc. · 2003
- Device for removal of gas bubbles and dissolved gasses in liquid92US 6,503,225 B1Celgard, LLC · 2003
- Membrane filtering device for micro and ultra filtration of fluids by the crossflow method83US 5,034,125 ASeitz-Filter-Werke Theo & Geo Seitz GmbH & Co. · 1991
- Hollow filament blood processing apparatus67US 5,552,047 ATerumo Kabushiki Kaisha · 1996