G05D 16/2097
Using pistons within the main valve
Official title: {using pistons within the main valve}
G05D16/2097 (Using pistons within the main valve) appears on 206 US grants and 126 published applications in this corpus.
Search patents in G05D- Granted patents
- 206
- Published applications
- 126
- Assignees
- 142
- Inventors
- 400
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 5 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 8 | 0 |
| 1994 | 8 | 0 |
| 1995 | 2 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 2 |
| 2002 | 5 | 4 |
| 2003 | 4 | 8 |
| 2004 | 9 | 9 |
| 2005 | 4 | 4 |
| 2006 | 6 | 3 |
| 2007 | 2 | 6 |
| 2008 | 1 | 4 |
| 2009 | 1 | 5 |
| 2010 | 3 | 3 |
| 2011 | 2 | 3 |
| 2012 | 3 | 5 |
| 2013 | 5 | 7 |
| 2014 | 7 | 4 |
| 2015 | 5 | 6 |
| 2016 | 4 | 0 |
| 2017 | 1 | 6 |
| 2018 | 5 | 8 |
| 2019 | 12 | 6 |
| 2020 | 8 | 7 |
| 2021 | 8 | 6 |
| 2022 | 4 | 2 |
| 2023 | 2 | 8 |
| 2024 | 4 | 3 |
| 2025 | 8 | 4 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Control system with dynamic reference pressure8 Sep 2026US 12,730,462 B2Fisher Controls International LLC
- Methods of robust electrohydraulic pressure control with distributed damping19 May 2026US 12,631,265 B2Sunstream Scientific, Inc.
- Flow control of an injection molding system23 Dec 2025US 12,502,816 B2Incoe Corporation
- Low bleed fluid control system23 Dec 2025US 12,504,773 B2Fisher Controls International LLC
- Liquid pressure reducing valve9 Dec 2025US 12,493,304 B2Polymer Technologies Limited
- Methods of robust electrohydraulic pressure control with distributed damping17 Sep 2026US 2026/0276103 A1Sunstream Scientific, Inc.
- Three-stage pilot inverse proportional pressure-reducing solenoid valve30 Jul 2026US 2026/0218807 A1Hangzhou Ruiheng Electromagnetic Technology Co., Ltd
- Robust electrohydraulic pressure control with distributed damping19 Mar 2026US 2026/0078837 A1Sunstream Scientific, Inc.
- Apparatus and method for pressure regulation of a gaseous fluid3 Jul 2025US 2025/0215837 A1HPDI Technology LP
- Electronic pressure regulator15 May 2025US 2025/0154909 A1Metatron, Inc.
Most cited
By later US patents
- Methods and apparatus for control of vacuum and pressure for surgical procedures170US 5,520,652 AMedical Instrument Development Laboratories, Inc. · 1996
- Propotional control pressure valve111US 6,619,615 B1ZF Friedrichshafen AG · 2003
- Methods and apparatus for control of vacuum and pressure for surgical procedures110US 5,354,268 AMedical Instrument Development Laboratories, Inc. · 1994
- Electromagnetic solenoid valve with variable force motor65US 5,051,631 ASPX Corporation · 1991
- Solenoid operated pressure regulating valve56US 5,121,769 AColtec Industries Inc. · 1992