Y10T 137/7929
Spring coaxial with valve
Y10T137/7929 (Spring coaxial with valve) appears on 1,099 US grants and 528 published applications in this corpus.
Search patents in Y10T- Granted patents
- 1,099
- Published applications
- 528
- Assignees
- 658
- Inventors
- 1,727
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 15 | 0 |
| 1978 | 18 | 0 |
| 1979 | 22 | 0 |
| 1980 | 20 | 0 |
| 1981 | 27 | 0 |
| 1982 | 19 | 0 |
| 1983 | 21 | 0 |
| 1984 | 34 | 0 |
| 1985 | 25 | 0 |
| 1986 | 16 | 0 |
| 1987 | 31 | 0 |
| 1988 | 26 | 0 |
| 1989 | 33 | 0 |
| 1990 | 31 | 0 |
| 1991 | 18 | 0 |
| 1992 | 25 | 0 |
| 1993 | 24 | 0 |
| 1994 | 21 | 0 |
| 1995 | 15 | 0 |
| 1996 | 14 | 0 |
| 1997 | 20 | 0 |
| 1998 | 26 | 0 |
| 1999 | 27 | 0 |
| 2000 | 31 | 0 |
| 2001 | 23 | 7 |
| 2002 | 21 | 29 |
| 2003 | 31 | 48 |
| 2004 | 24 | 42 |
| 2005 | 42 | 38 |
| 2006 | 31 | 42 |
| 2007 | 32 | 23 |
| 2008 | 24 | 34 |
| 2009 | 16 | 29 |
| 2010 | 27 | 25 |
| 2011 | 21 | 28 |
| 2012 | 20 | 23 |
| 2013 | 31 | 25 |
| 2014 | 42 | 35 |
| 2015 | 24 | 22 |
| 2016 | 21 | 10 |
| 2017 | 14 | 8 |
| 2018 | 14 | 5 |
| 2019 | 9 | 12 |
| 2020 | 10 | 8 |
| 2021 | 6 | 6 |
| 2022 | 9 | 7 |
| 2023 | 11 | 8 |
| 2024 | 11 | 7 |
| 2025 | 8 | 4 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- Y10T 137/7932Valve stem extends through fixed spring abutment259
- Y10T 137/7931Spring in inlet146
- Y10T 137/7937Cage-type guide for stemless valves116
- Y10T 137/7936Spring guides valve head106
- Y10T 137/7939Head between spring and guide95
- Y10T 137/7935Head slides on guide-rod concentric with spring92
- Y10T 137/7938Guide means integral and coplanar with valve disk76
- Y10T 137/7934Spring abuts removable valve stem guide74
All 9 subgroupsShow fewer
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Most cited
By later US patents
- Low head to stem ratio poppet valve425US 9,309,978 B2Dresser-Rand Company · 2016
- Valve having opposed curved sealing surfaces on a valve member and a valve seat to facilitate effective sealing160US 10,094,366 B2National Oilwell Varco, L. P. · 2018
- Valve guide and spring retainer assemblies160US 6,910,871 B12005
- Spring loaded exhalation valve154US 4,298,023 A1981
- Plunger pump housing and access bore plug146US 7,186,097 B12007