A41D 13/11
Protective face masks
Official title: Protective face masks, e.g. for surgical use, or for use in foul atmospheres (eye-masks A61F9/04 {; hoods affording protection against heat or harmful chemical agents A62B17/04})
A41D13/11 (Protective face masks) appears on 1,436 US grants and 2,537 published applications in this corpus.
Search patents in A41D- Granted patents
- 1,436
- Published applications
- 2,537
- Assignees
- 963
- Inventors
- 4,363
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 7 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 10 | 0 |
| 1986 | 9 | 0 |
| 1987 | 12 | 0 |
| 1988 | 8 | 0 |
| 1989 | 26 | 0 |
| 1990 | 20 | 0 |
| 1991 | 13 | 0 |
| 1992 | 12 | 0 |
| 1993 | 9 | 0 |
| 1994 | 9 | 0 |
| 1995 | 13 | 0 |
| 1996 | 11 | 0 |
| 1997 | 35 | 0 |
| 1998 | 28 | 0 |
| 1999 | 15 | 0 |
| 2000 | 24 | 0 |
| 2001 | 13 | 5 |
| 2002 | 22 | 7 |
| 2003 | 14 | 18 |
| 2004 | 13 | 31 |
| 2005 | 13 | 42 |
| 2006 | 23 | 34 |
| 2007 | 13 | 43 |
| 2008 | 2 | 41 |
| 2009 | 10 | 37 |
| 2010 | 19 | 31 |
| 2011 | 15 | 57 |
| 2012 | 21 | 50 |
| 2013 | 15 | 42 |
| 2014 | 15 | 57 |
| 2015 | 15 | 56 |
| 2016 | 25 | 60 |
| 2017 | 28 | 84 |
| 2018 | 23 | 92 |
| 2019 | 53 | 74 |
| 2020 | 73 | 96 |
| 2021 | 116 | 446 |
| 2022 | 125 | 505 |
| 2023 | 119 | 320 |
| 2024 | 134 | 153 |
| 2025 | 133 | 83 |
| 2026 | 87 | 73 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Personal protection system including medical garment with a shield6 Oct 2026US 12,751,515 B2Stryker Corporation
- Personal protective anti-viral face mask15 Sep 2026US 12,734,378 B2lowa State University Research Foundation, Inc.
- Methods and systems for maintaining confidentiality of vocal audio15 Sep 2026US 12,738,258 B2Skyted
- System and method for forming nose clip for improved face mask fit8 Sep 2026US 12,727,631 B23M Innovative Properties Company
- System and method for absorbing moisture within a face mask8 Sep 2026US 12,727,632 B2Honeywell Safety Products USA, Inc.
- Multifunctional filter materials8 Oct 2026US 2026/0305741 A1Khalifa University of Science and Technology
- Modified Metal-Organic Framework (MOF) Compositions, Process of Making and Process of Use Thereof8 Oct 2026US 2026/0307047 A1NuMat Technologies, Inc.
- Methods, apparatuses, and systems for providing personal protective equipment24 Sep 2026US 2026/0283270 A1Honeywell Safety Products USA, Inc.
- Sanitary mask sheet17 Sep 2026US 2026/0272077 A1Kao Corporation
- Protective mask17 Sep 2026US 2026/0272078 A1Intellisafe LLC
Most cited
By later US patents
- Foam substrate and micropackaged active ingredient particle composite dispensing materials1,078US 4,828,542 ATwin Rivers Engineering · 1989
- Melt-blown fibrous electrets387US 4,215,682 AMinnesota Mining and Manufacturing Company · 1980
- Strapless respiratory facial mask for customizing to the wearer's face363US 6,196,223 B12001
- Breathing mask289US 5,419,318 ABetter Breathing, Inc. · 1995
- Protective facial mask266US 4,671,271 A1987