B01D 46/4209
Prevention of static charge
Official title: {Prevention of static charge, e.g. by grounding}
B01D46/4209 (Prevention of static charge) appears on 27 US grants and 31 published applications in this corpus.
Search patents in B01D- Granted patents
- 27
- Published applications
- 31
- Assignees
- 27
- Inventors
- 89
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 2 | 0 |
| 2016 | 2 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 6 |
| 2020 | 5 | 3 |
| 2021 | 2 | 0 |
| 2022 | 1 | 2 |
| 2023 | 1 | 3 |
| 2024 | 3 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sideload disinfecting modular filtration system28 Jul 2026US 12,691,399 B2Healthway Home Products Company Inc.
- Filter module for the separation of overspray25 Nov 2025US 12,478,907 B2Carl Freudenberg KG
- V-Bank filter8 Oct 2024US 12,109,525 B2Healthway Home Products Company Inc.
- Filter module23 Jan 2024US 11,878,262 B2Samsung Electronics Co., Ltd.
- Cartridges for vertically oriented dust collectors2 Jan 2024US 11,857,905 B2Imperial Systems, Inc.
- Filter element and method for manufacturing a filter element20 Aug 2026US 2026/0241317 A1MANN+HUMMEL Life Sciences & Environment Holding Singapore Pte. Ltd.
- Filter device for adjusting an atmosphere within a manufacturing facility and manufacturing facility for an additive manufacturing process19 Feb 2026US 2026/0048548 A1Dmg Mori Additive GmbH
- Air purification filter device using x-ray ionizer30 Jan 2025US 2025/0033065 A1Cobalt Technology Inc.
- V-bank filter23 Jan 2025US 2025/0025819 A1Healthway Home Products Company Inc.
- Cartridges for Vertically Oriented Dust Collectors14 Mar 2024US 2024/0082769 A1Imperial Systems, Inc.
Most cited
By later US patents
- Static dissipating filter cartridge with conductive resilient seal63US 6,099,726 AParker-Hannifin Corporation · 2000
- Filtering material and filtration apparatus employing the filtering material17US 4,531,957 A1985
- Filter element gasket15US 5,066,318 APCF Group, Inc. · 1991
- Static dissipative glass filtration fabric7US 7,648,542 B1BGF Industries, Inc. · 2010
- Method for clearing gas lines5US 6,245,160 B1Connecticut Natural Gas Corporation · 2001