A61L 2209/21
Use of chemical compounds for treating air or the like
A61L2209/21 (Use of chemical compounds for treating air or the like) appears on 507 US grants and 948 published applications in this corpus.
Search patents in A61L- Granted patents
- 507
- Published applications
- 948
- Assignees
- 472
- Inventors
- 1,645
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 0 | 3 |
| 2004 | 2 | 4 |
| 2005 | 0 | 3 |
| 2006 | 2 | 4 |
| 2007 | 2 | 5 |
| 2008 | 2 | 4 |
| 2009 | 1 | 8 |
| 2010 | 2 | 20 |
| 2011 | 5 | 36 |
| 2012 | 13 | 26 |
| 2013 | 13 | 22 |
| 2014 | 18 | 20 |
| 2015 | 14 | 31 |
| 2016 | 25 | 41 |
| 2017 | 21 | 56 |
| 2018 | 30 | 64 |
| 2019 | 38 | 61 |
| 2020 | 42 | 64 |
| 2021 | 49 | 91 |
| 2022 | 42 | 123 |
| 2023 | 41 | 119 |
| 2024 | 52 | 64 |
| 2025 | 60 | 46 |
| 2026 | 33 | 33 |
By publication year. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Photocatalytic and photo(electro)catalytic approaches for viral decontamination22 Sep 2026US 12,741,049 B2Nevada Research & Innovation Corporation
- Modular hydroxyl radical generation and ozone-based disinfection system15 Sep 2026US 12,734,264 B2BioSure North America LLC
- Proactive air/surface decontamination system and devices for portable room sized hydroxyl generators18 Aug 2026US 12,708,694 B2Radical Clean Solutions Ltd.
- Proactive air/surface decontamination system and devices11 Aug 2026US 12,702,728 B2Radical Clean Solutions Ltd.
- Systems, methods, and apparatuses for disinfection and decontamination16 Jun 2026US 12,653,193 B2Chorus, LLC
- Volatile composition dispenser and methods of using same8 Oct 2026US 2026/0306690 A1The Procter & Gamble Company
- Portable ozone generator for biocidal air and surface treatment8 Oct 2026US 2026/0306693 A1HS Ultra LLC
- Scent control device and methods for treating an environment1 Oct 2026US 2026/0295106 A1
- Disinfecting apparatus1 Oct 2026US 2026/0295108 A1Specialist Health Solutions Limited
- Modular ozone-based disinfection system with selectively controlled ozone-to-hydroxyl-radical treatment ratio17 Sep 2026US 2026/0273122 A1BioSure North America LLC
Most cited
By later US patents
- Method and system for ambient air scenting and disinfecting based on flexible, autonomous liquid atomizer cartridges and an intelligent networking thereof60US 6,802,460 B2Microflow Engineering SA · 2004
- Method and apparatus for air treatment48US 7,407,633 B2The Johns Hopkins University · 2008
- Devices, systems and methods for ozone sanitization of continuous positive airway pressure devices35US 9,907,872 B2Soclean, Inc. · 2018
- Purified hydrogen peroxide gas microbial control methods and devices34US 8,168,122 B2Lee Antimicrobial Solutions LLC · 2012
- Method of sterilizing33US 8,236,236 B2UV03, Inc. · 2012