B01D 46/0032
Using electrostatic forces to remove particles
Official title: {using electrostatic forces to remove particles, e.g. electret filters}
B01D46/0032 (Using electrostatic forces to remove particles) appears on 320 US grants and 452 published applications in this corpus.
Search patents in B01D- Granted patents
- 320
- Published applications
- 452
- Assignees
- 225
- Inventors
- 930
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 9 | 0 |
| 2001 | 3 | 2 |
| 2002 | 5 | 2 |
| 2003 | 5 | 3 |
| 2004 | 1 | 13 |
| 2005 | 5 | 3 |
| 2006 | 4 | 5 |
| 2007 | 4 | 4 |
| 2008 | 3 | 5 |
| 2009 | 3 | 14 |
| 2010 | 6 | 20 |
| 2011 | 10 | 7 |
| 2012 | 9 | 10 |
| 2013 | 6 | 4 |
| 2014 | 11 | 12 |
| 2015 | 12 | 22 |
| 2016 | 7 | 21 |
| 2017 | 12 | 33 |
| 2018 | 19 | 24 |
| 2019 | 21 | 27 |
| 2020 | 15 | 24 |
| 2021 | 21 | 46 |
| 2022 | 22 | 56 |
| 2023 | 29 | 31 |
| 2024 | 29 | 21 |
| 2025 | 13 | 28 |
| 2026 | 16 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Indoor unit for air conditioner25 Aug 2026US 12,714,961 B2LG Electronics Inc.
- Z-shield™ filtered air protective system4 Aug 2026US 12,697,512 B2
- Hybrid filter unit8 Oct 2026US 2026/0307082 A1Brairtech Sweden AB
- Apparatus, systems, and methods for enhanced capture of carbon dioxide from ambient air using liquid solvent3 Sep 2026US 2026/0257171 A1Capture6 Corp
- Mobile pcr systems, mobile reverse pcr hoods and related methods27 Aug 2026US 2026/0249283 A1Radeas, LLC
- Graphene Functionalized HEPA Filter23 Jul 2026US 2026/0208085 A1University of Connecticut
- Intelligent networked energy recovery ventilator16 Jul 2026US 2026/0202081 A1Microjet Technology Co., Ltd.
Most cited
By later US patents
- Device for removal of contaminants from fluid streams235US 5,750,026 ACorning Incorporated · 1998
- Cleanable high efficiency filter media structure and applications for use231US 7,008,465 B2Donaldson Company, Inc. · 2006
- Filtering apparatus for a forced air duct grill105US 5,525,145 A1996
- Multi-functional filter for removing contaminants from an enclosure94US 6,395,073 B1Gore Enterprise Holdings, Inc. · 2002
- Multi-functional molded filter for removing contaminants from an enclosure80US 6,296,691 B1Gore Enterprise Holdings, Inc. · 2001