F15B 5/00
Transducers converting variations of physical quantities
Official title: Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities (F15B9/00 takes precedence)
F15B5/00 (Transducers converting variations of physical quantities) appears on 182 US grants and 141 published applications in this corpus.
Search patents in F15B- Granted patents
- 182
- Published applications
- 141
- Assignees
- 93
- Inventors
- 311
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 3 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 2 | 5 |
| 2008 | 1 | 3 |
| 2009 | 1 | 6 |
| 2010 | 4 | 5 |
| 2011 | 2 | 3 |
| 2012 | 3 | 5 |
| 2013 | 3 | 4 |
| 2014 | 3 | 6 |
| 2015 | 5 | 11 |
| 2016 | 9 | 14 |
| 2017 | 5 | 11 |
| 2018 | 8 | 11 |
| 2019 | 18 | 5 |
| 2020 | 10 | 8 |
| 2021 | 9 | 12 |
| 2022 | 10 | 9 |
| 2023 | 7 | 10 |
| 2024 | 6 | 1 |
| 2025 | 6 | 3 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Control system with dynamic reference pressure8 Sep 2026US 12,730,462 B2Fisher Controls International LLC
- Cylinder on demand hydraulic device14 Oct 2025US 12,442,398 B2Tonand Inc.
- Methods and systems of failure protection for automated valves26 Aug 2025US 12,398,740 B1Saudi Arabian Oil Company
- High strain peano hydraulically amplified self-healing electrostatic (HASEL) transducers13 May 2025US 12,297,851 B2The Regents of the University of Colorado, a body corporate
- Methods and apparatus for quantifying pneumatic volume usage via valve controllers13 May 2025US 12,298,171 B2Fisher Controls International LLC
- Remote travel feedback systems and related methods9 Jul 2026US 2026/0194079 A1Fisher Controls International LLC
- Positioner and method for manufacturing a positioner19 Mar 2026US 2026/0078782 A1Samson Aktiengesellschaft
- Position controller19 Mar 2026US 2026/0078783 A1Samson Aktiengesellschaft
- Methods and systems of failure protection for automated valves28 Aug 2025US 2025/0271006 A1Saudi Arabian Oil Company
- Hydraulically amplified self-healing electrostatic actuator22 May 2025US 2025/0163942 A1Electronics and Telecommunications Research Institute
Most cited
By later US patents
- Electropneumatic transducer69US 4,898,200 AShoketsu Kinzohu Kogyo Kabushiki Kaisha · 1990
- Switching valve and an electro-pneumatic pressure converter utilizing the same65US 4,617,952 AYamatake-Honeywell Co., Ltd. · 1986
- Valve positioner system60US 6,272,401 B1Dresser Industries, Inc. · 2001
- Piezo valve58US 5,343,894 AHoerbiger Ventilwerke Aktiengesellschaft · 1994
- Valve positioner system44US 6,453,261 B2Dresser, Inc. · 2002