A61F 9/068
With supply or suction of gas, air or smoke inside or outside
Official title: {with supply or suction of gas, air or smoke inside or outside the welding hood}
A61F9/068 (With supply or suction of gas, air or smoke inside or outside) appears on 63 US grants and 66 published applications in this corpus.
Search patents in A61F- Granted patents
- 63
- Published applications
- 66
- Assignees
- 20
- Inventors
- 116
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 2 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 5 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 4 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 7 |
| 2018 | 1 | 9 |
| 2019 | 3 | 6 |
| 2020 | 4 | 3 |
| 2021 | 7 | 7 |
| 2022 | 2 | 7 |
| 2023 | 3 | 2 |
| 2024 | 5 | 1 |
| 2025 | 4 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Protective headwear with airflow14 Jul 2026US 12,677,902 B2Illinois Tool Works Inc.
- Ventilation unit and controller device17 Feb 2026US 12,551,378 B2Otex Protective Inc.
- Personal protective equipment system having analytics engine with integrated monitoring, alerting, and predictive safety event avoidance2 Dec 2025US 12,488,261 B23M Innovative Properties Company
- Face shield with powered air purifying respirator and methods of use25 Nov 2025US 12,478,125 B2
- Blackbody radiation shield protective apparatus26 Aug 2025US 12,396,510 B2Paulson Manufacturing Corporation
- Masks, helmets and components thereof16 Jul 2026US 2026/0198625 A1
- Welding shield30 Jan 2025US 2025/0032320 A1
- Protective headwear with airflow29 Feb 2024US 2024/0065365 A1Illinois Tool Works Inc.
- Magnetic quick connect30 Nov 2023US 2023/0381554 A1RainMaker Solutions, Inc.
- Method and apparatus for providing air flow15 Jun 2023US 2023/0181940 A1Illinois Tool Works Inc.
Most cited
By later US patents
- Welding helmet113US 7,534,005 B12009
- Powered air respirator104US 4,280,491 AMinnesota Mining and Manufacturing Company · 1981
- Automatic welder's helmet having ventilation means49US 4,293,757 A1981
- Combination of a helmet and a respiratror and a method for using it43US 5,758,639 A1998
- Welding helmet42US 7,178,932 B12007