B01D 53/323
By electrostatic effects or by high-voltage electric fields
Official title: {by electrostatic effects or by high-voltage electric fields}
B01D53/323 (By electrostatic effects or by high-voltage electric fields) appears on 333 US grants and 396 published applications in this corpus.
Search patents in B01D- Granted patents
- 333
- Published applications
- 396
- Assignees
- 268
- Inventors
- 842
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 11 | 3 |
| 2002 | 5 | 7 |
| 2003 | 8 | 8 |
| 2004 | 3 | 23 |
| 2005 | 11 | 10 |
| 2006 | 7 | 9 |
| 2007 | 4 | 12 |
| 2008 | 8 | 11 |
| 2009 | 5 | 13 |
| 2010 | 8 | 14 |
| 2011 | 3 | 17 |
| 2012 | 8 | 10 |
| 2013 | 9 | 10 |
| 2014 | 9 | 12 |
| 2015 | 11 | 20 |
| 2016 | 12 | 24 |
| 2017 | 22 | 28 |
| 2018 | 20 | 25 |
| 2019 | 27 | 15 |
| 2020 | 14 | 11 |
| 2021 | 11 | 30 |
| 2022 | 11 | 20 |
| 2023 | 6 | 25 |
| 2024 | 16 | 17 |
| 2025 | 18 | 13 |
| 2026 | 8 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Devices and methods to reduce air pollution and global warming23 Jul 2026US 2026/0208207 A1Temple University of the Commonwealth System of Higher Education
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Most cited
By later US patents
- Electro-kinetic air transporter-conditioner122US 6,176,977 B1Sharper Image Corporation · 2001
- Exhaust system with emissions storage device and plasma reactor111US 5,746,984 ALow Emissions Technologies Research and Development Partnership · 1998
- Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices102US 6,350,417 B1Sharper Image Corporation · 2002
- Plasma regenerated particulate trap and NO.sub.x reduction system83US 6,038,854 AThe Regents of the University of California · 2000
- Personal electro-kinetic air transporter-conditioner73US 6,632,407 B1Sharper Image Corporation · 2003