A62D 9/00
Composition of chemical substances for use in breathing apparatus
A62D9/00 (Composition of chemical substances for use in breathing apparatus) appears on 70 US grants and 49 published applications in this corpus.
Search patents in A62D- Granted patents
- 70
- Published applications
- 49
- Assignees
- 49
- Inventors
- 181
- Latest grant
- 24 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 5 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 3 |
| 2004 | 0 | 2 |
| 2005 | 0 | 3 |
| 2006 | 0 | 1 |
| 2007 | 2 | 3 |
| 2008 | 0 | 1 |
| 2009 | 2 | 4 |
| 2010 | 1 | 2 |
| 2011 | 2 | 2 |
| 2012 | 3 | 2 |
| 2013 | 3 | 3 |
| 2014 | 4 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 4 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 2 | 1 |
| 2020 | 3 | 3 |
| 2021 | 0 | 4 |
| 2022 | 3 | 3 |
| 2023 | 0 | 1 |
| 2024 | 4 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Dual-molded polyamide-silicone composite article and methods of making24 Dec 2024US 12,173,153 B23M Innovative Properties Company
- Portable system for the production of oxygen12 Nov 2024US 12,138,494 B2Oxygenium Ltd.
- Individual self-contained breathing apparatus of closed cycle for underwater submergence17 Sep 2024US 12,091,143 B2“Aquabreather” LLC
- Life-saving towel with function of generating oxygen20 Feb 2024US 11,904,190 B2Saving Story Co., Ltd.
- Method for preparation of size-modulated UiO-66 and catalyst for hydrolysis of chemical warfare agents with enhanced activity prepared thereby8 Nov 2022US 11,492,363 B2Korea Institute of Science and Technology
- Dual-Molded Polyamide-Silicone Composite Article and Methods of Making13 Feb 2025US 2025/0051568 A13M Innovative Properties Company
- Portable system for the production of oxygen30 Jan 2025US 2025/0032826 A1Oxygenium Ltd.
- Life-saving towel with function of generating oxygen2 Nov 2023US 2023/0347188 A1Saving Story Co., Ltd.
- Portable System for the Production of Oxygen3 Nov 2022US 2022/0347499 A1Oxygenium Ltd.
- Carbon-based filters for use in eliminating pathogens22 Sep 2022US 2022/0296949 A1University of Cincinnati
Most cited
By later US patents
- Face mask and method87US 4,856,509 A1989
- Laminated, highly sorbent, active carbon fabric78US 4,217,386 AThe United States of America as represented by the Secretary of the Army · 1980
- Bonded adsorbent structures and respirators incorporating same69US 5,033,465 AMinnesota Mining and Manufacturing Company · 1991
- Permeable shaped structures of active particulate bonded with PSA polymer microparticulate56US 6,391,429 B13M Innovative Properties Company · 2002
- Magnetic recording device with unitary filter medium to trap organic and inorganic chemical pollutants53US 5,124,856 AInternational Business Machines Corporation · 1992