H01T 23/00
Apparatus for generating ions to be introduced into non-enclosed gases
Official title: Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
H01T23/00 (Apparatus for generating ions to be introduced into non-enclosed gases) appears on 712 US grants and 768 published applications in this corpus.
Search patents in H01T- Granted patents
- 712
- Published applications
- 768
- Assignees
- 342
- Inventors
- 1,244
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 9 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 8 | 0 |
| 1990 | 9 | 0 |
| 1991 | 10 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 8 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 4 | 3 |
| 2002 | 7 | 16 |
| 2003 | 8 | 19 |
| 2004 | 16 | 31 |
| 2005 | 13 | 30 |
| 2006 | 13 | 43 |
| 2007 | 24 | 29 |
| 2008 | 19 | 19 |
| 2009 | 17 | 30 |
| 2010 | 26 | 20 |
| 2011 | 30 | 25 |
| 2012 | 8 | 31 |
| 2013 | 19 | 30 |
| 2014 | 34 | 36 |
| 2015 | 29 | 41 |
| 2016 | 30 | 37 |
| 2017 | 33 | 31 |
| 2018 | 30 | 37 |
| 2019 | 33 | 36 |
| 2020 | 21 | 39 |
| 2021 | 30 | 29 |
| 2022 | 27 | 40 |
| 2023 | 31 | 38 |
| 2024 | 32 | 44 |
| 2025 | 32 | 21 |
| 2026 | 17 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Air conditioning apparatus15 Sep 2026US 12,734,472 B2LG Electronics Inc.
- Ion generator and system with mobile HVAC1 Sep 2026US 12,722,161 B2Dometic Sweden AB
- Static eliminator and static elimination system18 Aug 2026US 12,710,745 B2Keyence Corporation
- Air blower and/or vacuum with static charge mitigation18 Aug 2026US 12,713,510 B2The Toro Company
- Automatic emitter point cleaners with a detection surface cleaner11 Aug 2026US 12,703,011 B2Illinois Tool Works Inc.
- Apparatus and method for monitoring contaminations on discharge electrodes13 Aug 2026US 2026/0235657 A1Illinois Tool Works Inc.
- Electron beam ionization based ionic wind device13 Aug 2026US 2026/0237975 A1Peking University
- Ion wind generating device and heat dissipation system23 Jul 2026US 2026/0213500 A1Suzhou Anminrui Electronic Technology Co., Ltd.
- Air purifier and air-conditioning apparatus16 Jul 2026US 2026/0202070 A1Mitsubishi Electric Corporation
- Corona charger and methods of use and manufacture of the same16 Jul 2026US 2026/0204878 A1University of Cincinnati
Most cited
By later US patents
- Miniature air purifier126US 5,484,472 A1996
- Electro-kinetic air transporter-conditioner122US 6,176,977 B1Sharper Image Corporation · 2001
- Apparatus and method for neutralizing static electric charges in sensitive manufacturing areas119US 4,477,263 A1984
- Wall mounted air cleaner assembly109US 5,601,636 AAppliance Development Corporation · 1997
- Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices102US 6,350,417 B1Sharper Image Corporation · 2002