B63C 2011/2218
Comprising hollow piston valves, i.e. regulator valves with hollow stems connecting valve
Official title: {comprising hollow piston valves, i.e. regulator valves with hollow stems connecting valve seat end in high pressure chamber to low pressure chamber at piston end}
B63C2011/2218 (Comprising hollow piston valves, i.e. regulator valves with hollow stems connecting valve) appears on 21 US grants and 6 published applications in this corpus.
Search patents in B63C- Granted patents
- 21
- Published applications
- 6
- Assignees
- 7
- Inventors
- 18
- Latest grant
- 24 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 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 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- First stage pressure regulator with threshold actuation24 Jun 2025US 12,337,942 B2
- Underwater breathing device17 Oct 2023US 11,787,519 B2
- First stage pressure reducing valve having a tubular plug, particularly for regulators of scuba breathing apparatus15 Jul 2008US 7,398,794 B2Scubapro Europe S.r.l.
- Valve for underwater aqualung supplying devices27 Apr 2004US 6,725,861 B1Scubapro Europe S.r.l.
- Pressure reducing valve21 Oct 2003US 6,634,378 B2Scubapro Europe S.r.l.
- Portable vessel, regulator and apparatus for storing fluids28 Sep 2023US 2023/0302304 A1
- Underwater breathing device17 Mar 2022US 2022/0081082 A1
- First stage pressure regulator with threshold actuation28 Oct 2021US 2021/0331773 A1
- First Stage Pressure Reducing Valve Having A Tubular Plug, Particularly For Regulators Of Scuba Breathing Apparatus2 Oct 2008US 2008/0236587 A1Scubapro Europe S.r.l.
- First stage pressure reducing valve having a tubular plug, particularly for regulators of scuba breathing apparatus4 Dec 2003US 2003/0221726 A1Scubapro Europe S.r.l.
Most cited
By later US patents
- In-line first stage air pressure regulator for use in scuba diving26US 5,368,022 A1994
- First stage pressure regulator with flow around seat26US 5,509,407 A1996
- Pressure regulator23US 4,266,538 AGeneral Diving Corporation · 1981
- Freeze resistant liquid filled first stage scuba regulator23US 5,685,297 A1997
- Regulator first stage for underwater diving17US 4,015,630 APittman Products, Inc. · 1977