B63C 11/2236
Functionally interdependent first/second-stage regulators
Official title: {Functionally interdependent first/second-stage regulators (B63C11/2245 takes precedence)}
B63C11/2236 (Functionally interdependent first/second-stage regulators) appears on 16 US grants and 8 published applications in this corpus.
Search patents in B63C- Granted patents
- 16
- Published applications
- 8
- Assignees
- 11
- Inventors
- 21
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 2 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Arrangement for breathing apparatus, and breathing apparatus4 Nov 2025US 12,458,819 B2Interspiro AB
- Emergency detection and ascent device for a diver10 Mar 2020US 10,583,904 B2
- Lung demand valve8 Jan 2019US 10,173,083 B2Draeger Safety UK Limited
- Ascent and buoy system for divers20 Nov 2018US 10,131,412 B2
- Breathing apparatus structure with two-stage reduced-pressure spare air bottle head1 May 2012US 8,166,973 B2
- Pressure reducer for scba14 Aug 2025US 2025/0256818 A13M Innovative Properties Company
- Arrangement for breathing apparatus, and breathing apparatus1 Sep 2022US 2022/0273968 A1Interspiro AB
- Emergency Detection and Ascent Device for a Diver21 Feb 2019US 2019/0054989 A1
- Ultra-high pressure regulator and a method of using the same8 Feb 2018US 2018/0037307 A1ADA Technologies, Inc.
- Underwater Safety Device4 Jan 2018US 2018/0001980 A1
Most cited
By later US patents
- Connector device for breathing apparatus24US 3,995,626 A1976
- Pressure regulator for breathing apparatus20US 4,041,978 AScubapro EU · 1977
- Breathing apparatus with improved regulator particularly for under water use13US 4,192,298 ALa Spirotechnique Industrielle et Commerciale · 1980
- Multiple distributor for low-pressure uses10US 6,227,199 B1HTM Sport S.p,A. · 2001
- Lightweight breathing device8US 5,099,835 A1992