B03C 3/00
Separating dispersed particles from gases or vapour
Official title: Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
B03C3/00 (Separating dispersed particles from gases or vapour) appears on 2,832 US grants and 2,281 published applications in this corpus.
Search patents in B03C- Granted patents
- 2,832
- Published applications
- 2,281
- Assignees
- 1,361
- Inventors
- 4,877
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 53 | 0 |
| 1977 | 38 | 0 |
| 1978 | 44 | 0 |
| 1979 | 36 | 0 |
| 1980 | 53 | 0 |
| 1981 | 59 | 0 |
| 1982 | 46 | 0 |
| 1983 | 31 | 0 |
| 1984 | 34 | 0 |
| 1985 | 45 | 0 |
| 1986 | 39 | 0 |
| 1987 | 55 | 0 |
| 1988 | 47 | 0 |
| 1989 | 37 | 0 |
| 1990 | 41 | 0 |
| 1991 | 47 | 0 |
| 1992 | 41 | 0 |
| 1993 | 37 | 0 |
| 1994 | 41 | 0 |
| 1995 | 49 | 0 |
| 1996 | 46 | 0 |
| 1997 | 57 | 0 |
| 1998 | 54 | 0 |
| 1999 | 56 | 0 |
| 2000 | 44 | 0 |
| 2001 | 50 | 11 |
| 2002 | 51 | 52 |
| 2003 | 56 | 50 |
| 2004 | 33 | 88 |
| 2005 | 54 | 78 |
| 2006 | 57 | 118 |
| 2007 | 70 | 86 |
| 2008 | 71 | 90 |
| 2009 | 61 | 87 |
| 2010 | 70 | 105 |
| 2011 | 60 | 107 |
| 2012 | 67 | 94 |
| 2013 | 84 | 93 |
| 2014 | 74 | 85 |
| 2015 | 74 | 88 |
| 2016 | 70 | 98 |
| 2017 | 76 | 93 |
| 2018 | 66 | 88 |
| 2019 | 74 | 90 |
| 2020 | 71 | 94 |
| 2021 | 76 | 110 |
| 2022 | 70 | 139 |
| 2023 | 52 | 120 |
| 2024 | 89 | 88 |
| 2025 | 83 | 91 |
| 2026 | 43 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B03C 3/34Constructional details or accessories or operation thereof2,027
- B03C 3/02Plant or installations having external electricity supply1,336
- B03C 3/017Combinations of electrostatic separation with other processes, not otherwise provided for482
- B03C 3/01Pretreatment of the gases prior to electrostatic precipitation375
- B03C 3/28Plant or installations without electricity supply251
- B03C 3/32Transportable units208
- B03C 3/019Post-treatment of gases99
Recent patents
- Particle collection vessel, particle collection device and particle collection method6 Oct 2026US 12,752,284 B2Amano Corporation
- Inverter apparatus provided with dust collecting unit6 Oct 2026US 12,752,285 B2Ls Electric Co., Ltd.
- Membrane for collecting airborne particles22 Sep 2026US 12,741,287 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Method and apparatus for producing carbonate salts22 Sep 2026US 12,741,880 B2Nanomist Technologies Co., Ltd.
- Air conditioning apparatus15 Sep 2026US 12,734,472 B2LG Electronics Inc.
- Hybrid filter unit8 Oct 2026US 2026/0307082 A1Brairtech Sweden AB
- Insulator and wet electrostatic precipitator having the same8 Oct 2026US 2026/0307083 A1
- Caliper-type electrostatic precipitator and vehicle braking device including same1 Oct 2026US 2026/0298299 A1Korea Institute of Machinery & Materials
- Electrostatic precipitator with rotary collecting walls24 Sep 2026US 2026/0284675 A1Nestec S.A.
- Air conditioner17 Sep 2026US 2026/0276225 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Melt-blown fibrous electrets387US 4,215,682 AMinnesota Mining and Manufacturing Company · 1980
- Method of making fibrous electrets241US 4,375,718 ASurgikos, Inc. · 1983
- Method of manufacturing an electret filter230US 4,592,815 AJapan Vilene Company, Ltd. · 1986
- Method for removing pollutants from a combustor flue gas and system for same199US 5,505,766 AElectric Power Research, Inc. · 1996
- Sorbents and methods for the removal of mercury from combustion gases199US 6,953,494 B22005