A62B 18/025
Halfmasks
Official title: {Halfmasks (A62B23/02 takes precedence; surgical face masks A41D13/11)}
A62B18/025 (Halfmasks) appears on 482 US grants and 908 published applications in this corpus.
Search patents in A62B- Granted patents
- 482
- Published applications
- 908
- Assignees
- 357
- Inventors
- 1,633
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 3 |
| 2003 | 0 | 3 |
| 2004 | 1 | 5 |
| 2005 | 5 | 4 |
| 2006 | 4 | 8 |
| 2007 | 5 | 19 |
| 2008 | 2 | 9 |
| 2009 | 3 | 9 |
| 2010 | 3 | 13 |
| 2011 | 2 | 15 |
| 2012 | 6 | 18 |
| 2013 | 6 | 7 |
| 2014 | 5 | 9 |
| 2015 | 7 | 25 |
| 2016 | 10 | 21 |
| 2017 | 7 | 26 |
| 2018 | 9 | 36 |
| 2019 | 15 | 28 |
| 2020 | 34 | 56 |
| 2021 | 48 | 159 |
| 2022 | 54 | 184 |
| 2023 | 43 | 126 |
| 2024 | 76 | 83 |
| 2025 | 49 | 23 |
| 2026 | 31 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Personal protective anti-viral face mask15 Sep 2026US 12,734,378 B2lowa State University Research Foundation, Inc.
- Mask apparatus8 Sep 2026US 12,728,298 B2LG Electronics Inc.
- Face masks and method of fabricating face mask1 Sep 2026US 12,722,029 B2Razer (Asia-Pacific) Pte. Ltd.
- Mask25 Aug 2026US 12,714,166 B2Amolifescience Co., Ltd.
- Breathing apparatus with multiple breathing channels25 Aug 2026US 12,714,821 B1MPOINTAERO Inc.
- Respiratory Mask Having a Filter Unit and a Removable Cap for the Filter Unit1 Oct 2026US 2026/0295309 A1Dräger Safety AG & Co. KGaA
- Reusable face mask17 Sep 2026US 2026/0273313 A1Air Flo Labs, LLC
- Breathing apparatus and a method of controlling the breathing apparatus3 Sep 2026US 2026/0257083 A1Malina - Safety S.R.O.
- Negative pressure reusable respirator system for safety event detection13 Aug 2026US 2026/0233034 A13M Innovative Properties Company
- Systems and methods for automated respirator13 Aug 2026US 2026/0233035 A13M Innovative Properties Company
Most cited
By later US patents
- Respiratory mask457US 4,907,584 A1990
- Respiratory mask facial seal442US 5,647,357 ARespironics, Inc. · 1997
- CPAP nose mask411US 5,746,201 ANellcor Puritan Bennett LLC · 1998
- Respiratory mask having a soft, compliant facepiece and a thin, rigid insert and method of making396US 5,062,421 AMinnesota Mining and Manufacturing Company · 1991
- Respiratory mask facial seal372US 5,884,624 ARespironics, Inc. · 1999