G05D 16/20
Control of fluid pressure: characterised by the use of electric means
Official title: characterised by the use of electric means
G05D16/20 (Control of fluid pressure: characterised by the use of electric means) appears on 1,895 US grants and 1,514 published applications in this corpus.
Search patents in G05D- Granted patents
- 1,895
- Published applications
- 1,514
- Assignees
- 1,048
- Inventors
- 3,861
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 9 | 0 |
| 1978 | 10 | 0 |
| 1979 | 4 | 0 |
| 1980 | 6 | 0 |
| 1981 | 14 | 0 |
| 1982 | 7 | 0 |
| 1983 | 7 | 0 |
| 1984 | 19 | 0 |
| 1985 | 23 | 0 |
| 1986 | 27 | 0 |
| 1987 | 32 | 0 |
| 1988 | 30 | 0 |
| 1989 | 33 | 0 |
| 1990 | 36 | 0 |
| 1991 | 39 | 0 |
| 1992 | 38 | 0 |
| 1993 | 36 | 0 |
| 1994 | 35 | 0 |
| 1995 | 31 | 0 |
| 1996 | 40 | 0 |
| 1997 | 35 | 0 |
| 1998 | 43 | 0 |
| 1999 | 37 | 0 |
| 2000 | 32 | 0 |
| 2001 | 44 | 13 |
| 2002 | 32 | 38 |
| 2003 | 39 | 51 |
| 2004 | 53 | 54 |
| 2005 | 38 | 60 |
| 2006 | 36 | 32 |
| 2007 | 22 | 37 |
| 2008 | 18 | 49 |
| 2009 | 18 | 45 |
| 2010 | 31 | 51 |
| 2011 | 28 | 29 |
| 2012 | 35 | 34 |
| 2013 | 29 | 58 |
| 2014 | 43 | 67 |
| 2015 | 50 | 80 |
| 2016 | 65 | 61 |
| 2017 | 53 | 67 |
| 2018 | 57 | 79 |
| 2019 | 75 | 86 |
| 2020 | 72 | 88 |
| 2021 | 78 | 73 |
| 2022 | 74 | 88 |
| 2023 | 66 | 80 |
| 2024 | 84 | 84 |
| 2025 | 80 | 66 |
| 2026 | 44 | 44 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of closed-loop controlling a piezoelectric valve device, controller device and fluidic system6 Oct 2026US 12,754,572 B2Festo AG & Co.
- Smart pressure regulator for aircraft oxygen system22 Sep 2026US 12,743,114 B2B/E Aerospace, Inc.
- Distributed cabin pressure control system8 Sep 2026US 12,729,002 B2Honeywell International Inc.
- Control system with dynamic reference pressure8 Sep 2026US 12,730,462 B2Fisher Controls International LLC
- Proportional relief system for a power take-off8 Sep 2026US 12,731,447 B2Ion Engineering Fluid Power Systems LLC
- State Detection and Cushion Response for Cushion Systems8 Oct 2026US 2026/0307568 A1Kalogon, Inc.
- Internet of things (iot) system for the control of smart gas pressure regulation station8 Oct 2026US 2026/0310247 A1Chengdu Qinchuan Iot Technology Co., Ltd.
- Methods of robust electrohydraulic pressure control with distributed damping17 Sep 2026US 2026/0276103 A1Sunstream Scientific, Inc.
- Methods and systems for heating emergency regulation in smart cities based on internet of things large models17 Sep 2026US 2026/0277258 A1Chengdu Qinchuan Iot Technology Co., Ltd.
- Foot pump10 Sep 2026US 2026/0267363 A1
Most cited
By later US patents
- Fail-safe actuation system926US 9,239,064 B2Moog Inc. · 2016
- Liquid flow controller and precision dispense apparatus and system569US 8,082,946 B2Entegris, Inc. · 2011
- Tube occluder for occluding collapsible tubes240US 7,559,524 B2DEKA Products Limited Partnership · 2009
- Air mattress control system and method233US 6,686,711 B2Comfortaire Corporation · 2004
- Method for regulating fluid pump pressure221US 6,503,062 B1DEKA Products Limited Partnership · 2003