A61L 2209/22
Treatment by sorption
Official title: Treatment by sorption, e.g. absorption, adsorption, chemisorption, scrubbing, wet cleaning
A61L2209/22 (Treatment by sorption) appears on 236 US grants and 376 published applications in this corpus.
Search patents in A61L- Granted patents
- 236
- Published applications
- 376
- Assignees
- 208
- Inventors
- 800
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 2 |
| 2002 | 5 | 5 |
| 2003 | 6 | 11 |
| 2004 | 5 | 11 |
| 2005 | 2 | 5 |
| 2006 | 5 | 11 |
| 2007 | 3 | 10 |
| 2008 | 2 | 6 |
| 2009 | 3 | 2 |
| 2010 | 2 | 14 |
| 2011 | 9 | 5 |
| 2012 | 5 | 4 |
| 2013 | 6 | 6 |
| 2014 | 6 | 6 |
| 2015 | 4 | 3 |
| 2016 | 3 | 5 |
| 2017 | 2 | 19 |
| 2018 | 8 | 21 |
| 2019 | 18 | 26 |
| 2020 | 13 | 26 |
| 2021 | 18 | 35 |
| 2022 | 19 | 46 |
| 2023 | 14 | 49 |
| 2024 | 21 | 24 |
| 2025 | 22 | 13 |
| 2026 | 19 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Particle collection vessel, particle collection device and particle collection method6 Oct 2026US 12,752,284 B2Amano Corporation
- Adsorptive deodorizing materials, preparation methods, and air purification devices29 Sep 2026US 12,746,303 B2Guangdong Eraclean Technology Co., Ltd.
- Deodorant composition and deodorant article29 Sep 2026US 12,746,528 B2Sagami Chemical Research Institute
- Photocatalyst filter and electronic device comprising same15 Sep 2026US 12,734,266 B2Samsung Electronics Co., Ltd.
- Anti-microbial filter18 Aug 2026US 12,708,690 B2Acell Industries Limited
- Polysiloxane, method for its production and deodorant comprising it8 Oct 2026US 2026/0306689 A1Sagami Chemical Research Institute
- Catheter Device for Odour-Reducing Delivery and/or Discharge of Substances to/from the Human or Animal Body1 Oct 2026US 2026/0294668 A1Advanced Medical Balloons GmbH
- Adsorptive deodorizing materials, preparation methods, and air purification devices3 Sep 2026US 2026/0256972 A1Guangdong Eraclean Technology Co., Ltd.
- Subterranean odor remediation system20 Aug 2026US 2026/0241322 A1
- Hydroxyl-based system for filtering and disinfecting air and liquids and a method of use4 Jun 2026US 2026/0151530 A1
Most cited
By later US patents
- Animal care system and litter with reduced malodor impression130US 6,287,550 B1The Procter & Gamble Company · 2001
- Dual function dispenser122US 6,569,387 B1S. C. Johnson & Son, Inc. · 2003
- Dual function dispenser110US 6,610,254 B1S. C. Johnson & Son, Inc. · 2003
- Uncomplexed cyclodextrin compositions for odor control96US 5,942,217 AThe Procter & Gamble Company · 1999
- Composition for reducing malodor impression on inanimate surfaces88US 5,578,563 AThe Procter & Gamble Company · 1996