A61L 9/22
Ionisation
A61L9/22 (Ionisation) appears on 603 US grants and 1,034 published applications in this corpus.
Search patents in A61L- Granted patents
- 603
- Published applications
- 1,034
- Assignees
- 456
- Inventors
- 1,774
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 9 | 10 |
| 2003 | 8 | 22 |
| 2004 | 7 | 39 |
| 2005 | 11 | 31 |
| 2006 | 13 | 35 |
| 2007 | 12 | 28 |
| 2008 | 11 | 30 |
| 2009 | 14 | 19 |
| 2010 | 17 | 26 |
| 2011 | 12 | 30 |
| 2012 | 12 | 29 |
| 2013 | 25 | 25 |
| 2014 | 30 | 33 |
| 2015 | 27 | 34 |
| 2016 | 24 | 33 |
| 2017 | 20 | 60 |
| 2018 | 29 | 40 |
| 2019 | 29 | 35 |
| 2020 | 33 | 43 |
| 2021 | 31 | 69 |
| 2022 | 40 | 109 |
| 2023 | 41 | 104 |
| 2024 | 37 | 75 |
| 2025 | 54 | 48 |
| 2026 | 36 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and apparatus for generating atmospheric pressure, low temperature plasma6 Oct 2026US 12,757,313 B2TellaPure, LLC
- Odor removal device22 Sep 2026US 12,741,050 B2Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University)
- Electrostatic precipitator and control method thereof8 Sep 2026US 12,728,424 B2Samsung Electronics Co., Ltd.
- Mask1 Sep 2026US 12,721,386 B2Murata Manufacturing Co., Ltd.
- Ion generator and system with mobile HVAC1 Sep 2026US 12,722,161 B2Dometic Sweden AB
- Air decontamination system27 Aug 2026US 2026/0248980 A1The University of Liverpool
- Air cleaner20 Aug 2026US 2026/0241059 A1Omachron Intellectual Property Inc.
- Lite Air Tecnologies DAC13 Aug 2026US 2026/0232861 A1
- Method for producing negative ion device for preventing and treating airborne transmission virus infections13 Aug 2026US 2026/0232862 A1
- Ion generator device13 Aug 2026US 2026/0232863 A1
Most cited
By later US patents
- Portable personal corona discharge device for destruction of airborne microbes and chemical toxins111US 5,667,564 AWein Products, Inc. · 1997
- Corona discharge device for destruction of airborne microbes and chemical toxins91US 6,042,637 A2000
- Air-cleaning apparatus and air-cleaning method84US 6,508,982 B1Seisui Co., Ltd. · 2003
- Electro-kinetic device with enhanced anti-microorganism capability83US 6,544,485 B1Sharper Image Corporation · 2003
- Portable personal corona discharge device for destruction of airborne microbes and chemical toxins81US 5,814,135 A1998