B01D 2201/50
Means for dissipating electrostatic charges
B01D2201/50 (Means for dissipating electrostatic charges) appears on 109 US grants and 82 published applications in this corpus.
Search patents in B01D- Granted patents
- 109
- Published applications
- 82
- Assignees
- 79
- Inventors
- 240
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 0 |
| 2002 | 4 | 5 |
| 2003 | 3 | 4 |
| 2004 | 4 | 7 |
| 2005 | 3 | 0 |
| 2006 | 3 | 5 |
| 2007 | 4 | 6 |
| 2008 | 3 | 4 |
| 2009 | 2 | 3 |
| 2010 | 3 | 3 |
| 2011 | 0 | 4 |
| 2012 | 3 | 1 |
| 2013 | 1 | 4 |
| 2014 | 3 | 5 |
| 2015 | 4 | 1 |
| 2016 | 4 | 2 |
| 2017 | 2 | 4 |
| 2018 | 0 | 2 |
| 2019 | 4 | 7 |
| 2020 | 6 | 2 |
| 2021 | 2 | 2 |
| 2022 | 4 | 4 |
| 2023 | 0 | 1 |
| 2024 | 4 | 2 |
| 2025 | 2 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Filter element with self-contained electrostatic buildup protection16 Dec 2025US 12,496,539 B2Atmus Filtration IP Inc.
- Electrostatically conductive filter element and fuel filter7 Oct 2025US 12,434,177 B2Zhejiang Laien Filtration System Co., Ltd.
- Fluid circuit with integrated electrostatic discharge mitigation15 Oct 2024US 12,117,106 B2Entegris, Inc.
- Filter with electrically-conductive wrap3 Sep 2024US 12,076,668 B2Pall Corporation
- Electrostatic discharge mitigation device21 May 2024US 11,988,308 B2Entegris, Inc.
- Filter for fuel and oils29 Jan 2026US 2026/0027497 A1Piusi S.P.A.
- Anti-Static Stinger Apparatus and Method of Using Same1 Jan 2026US 2026/0001013 A1
- Filter assembly for an aircraft engine20 Nov 2025US 2025/0352932 A1Pratt & Whitney Canada Corp.
- Arrangement with a filter element and a charge absorption element, filter device, tank system and method6 Feb 2025US 2025/0041770 A1Argo-Hytos Group AG
- Filter with electrostatic discharge mitigation sleeve1 Aug 2024US 2024/0252961 A1Entegris, Inc.
Most cited
By later US patents
- Electrically conducting filter media for fluids79US 3,933,643 AThe Carborundum Company · 1976
- Static dissipating filter cartridge with conductive resilient seal63US 6,099,726 AParker-Hannifin Corporation · 2000
- Electrically conductive polymeric compositions62US 5,498,372 AHexcel Corporation · 1996
- Fuel supply system having a suction filter in a sub-tank59US 5,769,061 ADenso Corporation · 1998
- Conductive filter laminate54US 5,527,569 AW. L. Gore & Associates, Inc. · 1996