Y10T 137/6167
Opposite duplicate surfaces of unitary structure
Y10T137/6167 (Opposite duplicate surfaces of unitary structure) appears on 32 US grants and 7 published applications in this corpus.
Search patents in Y10T- Granted patents
- 32
- Published applications
- 7
- Assignees
- 14
- Inventors
- 36
- Latest grant
- 3 Oct 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 2 | 1 |
| 2014 | 3 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Valve system3 Oct 2017US 9,776,792 B1
- Tunable fluid end10 Jun 2014US 8,746,654 B2
- Tunable fluid end13 May 2014US 8,720,857 B2
- Valve system22 Apr 2014US 8,701,553 B2
- Redundant metal-to-metal seals for use with internal valves27 Aug 2013US 8,517,046 B2Emerson Process Management Regulator Technologies, Inc.
- Tunable Fluid End6 Feb 2014US 2014/0034862 A1
- Tunable Fluid End6 Feb 2014US 2014/0034863 A1
- Valve System21 Nov 2013US 2013/0306662 A1
- Redundant metal-to-metal seals for use with internal valves7 Oct 2010US 2010/0252770 A1Emerson Process Management Regulator Technologies, Inc.
- Symmetrical valve configuration16 Dec 2004US 2004/0250854 A1Mueller International, LLC
Most cited
By later US patents
- Choke for controlling the flow of drilling mud105US 4,257,442 A1981
- Method and apparatus for controlling back pressure66US 4,355,784 AWarren Automatic Tool Co. · 1982
- Compressor valve35US 4,483,363 A1984
- Apparatus for use in rejuvenating oil wells27US 4,393,928 A1983
- Valve assembly for reciprocating plunger pump27US 4,716,924 APartek Corporation of Houston · 1988