B01D 2259/818
Employing electrical discharges or the generation of a plasma
B01D2259/818 (Employing electrical discharges or the generation of a plasma) appears on 385 US grants and 559 published applications in this corpus.
Search patents in B01D- Granted patents
- 385
- Published applications
- 559
- Assignees
- 306
- Inventors
- 1,127
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 12 | 5 |
| 2002 | 11 | 7 |
| 2003 | 7 | 18 |
| 2004 | 2 | 23 |
| 2005 | 13 | 18 |
| 2006 | 7 | 24 |
| 2007 | 12 | 26 |
| 2008 | 8 | 15 |
| 2009 | 13 | 31 |
| 2010 | 16 | 23 |
| 2011 | 14 | 15 |
| 2012 | 13 | 14 |
| 2013 | 18 | 14 |
| 2014 | 12 | 19 |
| 2015 | 16 | 19 |
| 2016 | 20 | 18 |
| 2017 | 14 | 27 |
| 2018 | 13 | 24 |
| 2019 | 20 | 17 |
| 2020 | 20 | 24 |
| 2021 | 13 | 25 |
| 2022 | 19 | 25 |
| 2023 | 18 | 41 |
| 2024 | 22 | 26 |
| 2025 | 23 | 36 |
| 2026 | 12 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Continuous and rapid perpetual electrostatic coalescence phase separation and demulsification of oil, water, and solids using plasma at standard conditions1 Sep 2026US 12,722,102 B2Lteoil LLC
- High efficiency trap for particle collection in a vacuum foreline21 Jul 2026US 12,689,010 B2APPLIED Materials.Inc.
- Carbon dioxide recovery system14 Jul 2026US 12,678,734 B2Denso Corporation
- System for detecting and cleaning indoor air pollution2 Jun 2026US 12,644,621 B2Microjet Technology Co., Ltd.
- Gravel circulation dry electrostatic precipitator26 May 2026US 12,636,660 B2Metro Engineering Co., Ltd.
- Substrate-processing apparatus and exhaust gas-processing method using the same10 Sep 2026US 2026/0264006 A1Wonik Ips Co., Ltd.
- Method, device and system for destroying one or more pollutant3 Sep 2026US 2026/0257169 A1
- Controller and controlling method for exhaust gas treatment system13 Aug 2026US 2026/0235065 A1Ebara Corporation
- Dielectric barrier discharge device13 Aug 2026US 2026/0239522 A1Daphne Technology SA
- Microplasma catalytic reactor6 Aug 2026US 2026/0225035 A1Dyson Technology Limited
Most cited
By later US patents
- Plasma fuel processing for NOx control of lean burn engines101US 6,176,078 B1Engelhard Corporation · 2001
- Method for removing residue from substrate processing chamber exhaust line for silicon-oxygen-carbon deposition process95US 6,255,222 B1APPLIED Materials.Inc. · 2001
- Parallel plate apparatus for in-situ vacuum line cleaning for substrate processing equipment90US 6,193,802 B1APPLIED Materials.Inc. · 2001
- Porous ceramic liner for a plasma source82US 6,367,412 B1APPLIED Materials.Inc. · 2002
- Plasma based trace metal removal apparatus and method81US 6,969,494 B2Continental Research & Engineering, LLC · 2005