B03C 3/41
Ionising-electrodes
B03C3/41 (Ionising-electrodes) appears on 736 US grants and 929 published applications in this corpus.
Search patents in B03C- Granted patents
- 736
- Published applications
- 929
- Assignees
- 503
- Inventors
- 1,608
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 7 | 0 |
| 1982 | 9 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 11 | 0 |
| 1988 | 5 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 7 | 2 |
| 2002 | 5 | 6 |
| 2003 | 12 | 6 |
| 2004 | 6 | 10 |
| 2005 | 8 | 18 |
| 2006 | 8 | 25 |
| 2007 | 16 | 20 |
| 2008 | 14 | 17 |
| 2009 | 12 | 16 |
| 2010 | 14 | 28 |
| 2011 | 12 | 26 |
| 2012 | 20 | 28 |
| 2013 | 24 | 34 |
| 2014 | 24 | 41 |
| 2015 | 23 | 41 |
| 2016 | 32 | 44 |
| 2017 | 41 | 46 |
| 2018 | 32 | 51 |
| 2019 | 36 | 48 |
| 2020 | 33 | 63 |
| 2021 | 46 | 75 |
| 2022 | 41 | 91 |
| 2023 | 36 | 75 |
| 2024 | 51 | 51 |
| 2025 | 51 | 52 |
| 2026 | 20 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Particle collection vessel, particle collection device and particle collection method6 Oct 2026US 12,752,284 B2Amano Corporation
- Air conditioning apparatus15 Sep 2026US 12,734,472 B2LG Electronics Inc.
- Electrostatic precipitator and control method thereof8 Sep 2026US 12,728,424 B2Samsung Electronics Co., Ltd.
- Dust collection sheet and electrostatic precipitator18 Aug 2026US 12,708,911 B2Samsung Electronics Co., Ltd.
- Methods and systems for negative ion-based and radiation-based pollution reduction7 Jul 2026US 12,673,332 B2Rainlons Corp.
- Hybrid filter unit8 Oct 2026US 2026/0307082 A1Brairtech Sweden AB
- Air conditioner17 Sep 2026US 2026/0276225 A1Samsung Electronics Co., Ltd.
- Ion generator device13 Aug 2026US 2026/0232863 A1
- Ionic Personal Exhalant Filter30 Jul 2026US 2026/0215495 A1Philter Labs, Inc.
- Electric dust-collecting filter23 Jul 2026US 2026/0208208 A1Hanon Systems
Most cited
By later US patents
- Air cleaner using ionic wind123US 4,643,745 ANippon Soken, Inc. · 1987
- Electrostatic air treatment and movement system97US 5,024,685 AAstra-Vent AB · 1991
- Electrical dust collector77US 5,215,558 ASamsung Electronics Co., Ltd. · 1993
- Electrostatic reduction system for reducing airborne dust and microorganisms77US 6,126,722 AThe United States of America as represented by the Secretary of Agriculture · 2000
- Fiber-rejecting corona discharge electrode and a filtering system employing the discharge electrode70US 4,266,948 AEnvirotech Corporation · 1981