F15B 15/061
By unidirectional means
Official title: {by unidirectional means}
F15B15/061 (By unidirectional means) appears on 34 US grants and 30 published applications in this corpus.
Search patents in F15B- Granted patents
- 34
- Published applications
- 30
- Assignees
- 34
- Inventors
- 87
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 3 |
| 2011 | 2 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 3 |
| 2015 | 0 | 1 |
| 2016 | 3 | 2 |
| 2017 | 0 | 0 |
| 2018 | 2 | 3 |
| 2019 | 0 | 3 |
| 2020 | 3 | 3 |
| 2021 | 1 | 1 |
| 2022 | 2 | 0 |
| 2023 | 2 | 1 |
| 2024 | 2 | 1 |
| 2025 | 0 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Contractile and extensile fluidic artificial muscle actuator13 Jan 2026US 12,521,870 B2Katholieke Universiteit Leuven
- Hydraulic system, method, and integrated valve block of slewing mechanism6 Jan 2026US 12,516,685 B2Shandong University
- Systems and methods for chain joint cable routing30 Apr 2024US 11,969,888 B2Veolia Nuclear Solutions, Inc.
- Hydraulic actuator with no friction and zero leakage, and its drive system19 Mar 2024US 11,933,327 B2Shandong University
- On-axis actuator for rotating bodies20 Jun 2023US 11,680,590 B1The United States of America as represented by the Secretary of the Navy
- Hydraulic system, method, and integrated valve block of slewing mechanism1 May 2025US 2025/0137476 A1Shandong University
- Contractile and extensile fluidic artificial muscle actuator24 Apr 2025US 2025/0128405 A1Katholieke Universiteit Leuven
- Hydraulic actuator with no friction and zero leakage, and its drive system22 Feb 2024US 2024/0060516 A1Shandong University
- Locking device for a mold group including a safety group29 Jun 2023US 2023/0202076 A1Persico S.P.A.
- Rotary drive device and control method thereof8 Jul 2021US 2021/0207625 A1Eishin Technology Company, Limited
Most cited
By later US patents
- Hydraulic turning gear136US 4,919,039 AGeneral Electric Company · 1990
- Remotely operated cutting mode shifting apparatus for a combination fluid jet decoking tool34US 6,644,567 B1Flowserve Management Company · 2003
- Rotary actuator22US 5,634,390 ACkd Corporation · 1997
- Earth drilling device18US 4,719,978 AIng. Gunter Klemm Spezialunternehmen fur Bohrtechnik · 1988
- Apparatus for intermittently turning a turbine shaft13US 4,018,094 ASulzer Turbomaschinen AG · 1977