Y10T 137/2409
With counter-balancing pressure feedback to the modulating device
Y10T137/2409 (With counter-balancing pressure feedback to the modulating device) appears on 200 US grants and 24 published applications in this corpus.
Search patents in Y10T- Granted patents
- 200
- Published applications
- 24
- Assignees
- 112
- Inventors
- 256
- Latest grant
- 28 Jul 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 6 | 0 |
| 1980 | 9 | 0 |
| 1981 | 12 | 0 |
| 1982 | 14 | 0 |
| 1983 | 7 | 0 |
| 1984 | 10 | 0 |
| 1985 | 14 | 0 |
| 1986 | 12 | 0 |
| 1987 | 11 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 9 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 11 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 4 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 2 | 3 |
| 2013 | 2 | 0 |
| 2014 | 2 | 3 |
| 2015 | 2 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Torsion spring28 Jul 2020US 10,724,593 B2Hamilton Sundstrand Corporation
- Digital closed loop proportional hydraulic pressure controller8 Jan 2019US 10,175,703 B2Woodward, Inc.
- Digital closed loop proportional hydraulic pressure controller23 May 2017US 9,656,306 B2Woodward, Inc.
- Servovalve having two stages and a pilot stage adapted to such a servovalve9 May 2017US 9,644,645 B2Zodiac Hydraulics
- Digital closed loop proportional hydraulic pressure controller12 Jul 2016US 9,387,522 B2Woodward, Inc.
- Torsion spring27 Sep 2018US 2018/0274616 A1Hamilton Sundstrand Corporation
- Digital closed loop proportional hydraulic pressure controller9 Jun 2016US 2016/0158815 A1Woodward, Inc.
- Digital closed loop proportional hydraulic pressure controller26 Feb 2015US 2015/0053275 A9Woodward, Inc.
- Pressure adjustment unit and redox device having a pressure adjustment unit11 Dec 2014US 2014/0363757 A1Astrium GmbH
- Servovalve having two stages and a pilot stage adapted to such a servovalve11 Sep 2014US 2014/0251447 A1Zodiac Hydraulics
Most cited
By later US patents
- Valve positioner with pressure feedback, dynamic correction and diagnostics203US 5,573,032 ARosemount Inc. · 1996
- Valve positioner with pressure feedback, dynamic correction and diagnostics126US 5,549,137 ARosemount Inc. · 1996
- Integrated process control valve106US 5,251,148 AValtek, Inc. · 1993
- Smart valve positioner95US 5,431,182 ARosemount Inc. · 1995
- Fluid regulator69US 4,722,360 AShoketsu Kinzoku Kogyo Kabushiki Kaisha · 1988