F16K 15/148
The closure elements being fixed in their centre
Official title: {the closure elements being fixed in their centre}
F16K15/148 (The closure elements being fixed in their centre) appears on 472 US grants and 351 published applications in this corpus.
Search patents in F16K- Granted patents
- 472
- Published applications
- 351
- Assignees
- 355
- Inventors
- 892
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 9 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 15 | 0 |
| 1986 | 9 | 0 |
| 1987 | 8 | 0 |
| 1988 | 9 | 0 |
| 1989 | 10 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 10 | 0 |
| 1993 | 6 | 0 |
| 1994 | 9 | 0 |
| 1995 | 9 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 8 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 1 |
| 2002 | 5 | 5 |
| 2003 | 13 | 13 |
| 2004 | 11 | 8 |
| 2005 | 4 | 11 |
| 2006 | 8 | 7 |
| 2007 | 5 | 6 |
| 2008 | 2 | 6 |
| 2009 | 2 | 12 |
| 2010 | 1 | 5 |
| 2011 | 11 | 9 |
| 2012 | 9 | 10 |
| 2013 | 8 | 6 |
| 2014 | 9 | 8 |
| 2015 | 9 | 15 |
| 2016 | 7 | 18 |
| 2017 | 11 | 19 |
| 2018 | 16 | 22 |
| 2019 | 20 | 26 |
| 2020 | 16 | 17 |
| 2021 | 17 | 28 |
| 2022 | 24 | 25 |
| 2023 | 27 | 26 |
| 2024 | 18 | 16 |
| 2025 | 21 | 14 |
| 2026 | 11 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vent with relief valve29 Sep 2026US 12,747,800 B2Donaldson Company, Inc.
- Mechanical cardiopulmonary resuscitation device suction cup22 Sep 2026US 12,740,918 B2Physio-Control, Inc.
- Vacuum pump and valve system for use with vacuum-retention system11 Aug 2026US 12,703,556 B2Gstc LLC
- Valve and shock absorber14 Jul 2026US 12,680,593 B2KYB Corporation
- Valve member and milking machine26 May 2026US 12,636,414 B2Pigeon Corporation
- Valve apparatus with a domed valve disc24 Sep 2026US 2026/0287066 A1Wanner Engineering, Inc.
- Modified valve for use in a flow path10 Sep 2026US 2026/0263710 A1
- Pressure equalization device for a battery housing13 Aug 2026US 2026/0235217 A1Illinois Tool Works Inc.
- Pressure equalization device for a battery housing13 Aug 2026US 2026/0237829 A1Illinois Tool Works Inc.
- Component and assembly6 Aug 2026US 2026/0226991 A1Fujikura Composites Inc.
Most cited
By later US patents
- Dynamic annulus heart valve and reconstruction ring1,033US 4,339,831 AMedtronic, Inc. · 1982
- Blood sampling assembly having porous vent means vein entry indicator396US 4,207,870 ABecton, Dickinson and Company · 1980
- Respirator face mask367US 4,414,973 AU.S.D. Corp. · 1983
- Normally closed automatic reflux valve335US 4,683,916 ABurron Medical Inc. · 1987
- Fluid transfer device218US 4,084,606 ABaxter Travenol Laboratories, Inc. · 1978