A42B 3/283
Air inlets or outlets, with or without closure shutters
Official title: {Air inlets or outlets, with or without closure shutters}
A42B3/283 (Air inlets or outlets, with or without closure shutters) appears on 206 US grants and 263 published applications in this corpus.
Search patents in A42B- Granted patents
- 206
- Published applications
- 263
- Assignees
- 88
- Inventors
- 303
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 2 | 5 |
| 2005 | 3 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 6 |
| 2008 | 1 | 3 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 2 | 2 |
| 2012 | 4 | 1 |
| 2013 | 0 | 8 |
| 2014 | 3 | 3 |
| 2015 | 0 | 7 |
| 2016 | 11 | 24 |
| 2017 | 10 | 28 |
| 2018 | 12 | 29 |
| 2019 | 23 | 30 |
| 2020 | 22 | 19 |
| 2021 | 18 | 17 |
| 2022 | 14 | 19 |
| 2023 | 17 | 14 |
| 2024 | 8 | 9 |
| 2025 | 12 | 21 |
| 2026 | 13 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hard hat with fan15 Sep 2026US 12,733,705 B2Milwaukee Electric Tool Corporation
- Hardhat with air conduit15 Sep 2026US 12,734,377 B23M Innovative Properties Company
- Surf and water sports helmet25 Aug 2026US 12,714,177 B1
- Protective cap28 Jul 2026US 12,690,636 B2Milwaukee Electric Tool Corporation
- Protective headwear with airflow14 Jul 2026US 12,677,902 B2Illinois Tool Works Inc.
Most cited
By later US patents
- Helmet121US 5,915,537 ARed Corporation · 1999
- Multiple density helmet body compositions to strengthen helmet103US 5,309,576 ABell Helmets Inc. · 1994
- Helmet for riding vehicle70US 5,093,937 AShoei Kako Kabushiki Kaisha · 1992
- Football helmet with impact attenuation system68US 9,314,063 B2Riddell, Inc. · 2016
- Ventilated helmet61US 4,627,115 ABell Helmets Inc. · 1986