F15B 15/125
Of the curved-cylinder type
Official title: {of the curved-cylinder type}
F15B15/125 (Of the curved-cylinder type) appears on 75 US grants and 62 published applications in this corpus.
Search patents in F15B- Granted patents
- 75
- Published applications
- 62
- Assignees
- 36
- Inventors
- 112
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 4 |
| 2014 | 0 | 6 |
| 2015 | 5 | 3 |
| 2016 | 3 | 5 |
| 2017 | 7 | 4 |
| 2018 | 2 | 9 |
| 2019 | 4 | 5 |
| 2020 | 6 | 5 |
| 2021 | 7 | 5 |
| 2022 | 8 | 4 |
| 2023 | 2 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rotary actuator28 Apr 2026US 12,612,932 B2Nabtesco Corporation
- Tensioning device22 Apr 2025US 12,280,733 B2Autoliv Development AB
- Multi-axis rotary piston actuator18 Jun 2024US 12,012,976 B2Woodward, Inc.
- Air-fuel system for a circulating piston engine8 Aug 2023US 11,719,187 B2WB Development Company, LLC
- Actuator device, humanoid robot and power assist device25 Apr 2023US 11,635,096 B2Advanced Telecommunications Research Institute International
- Rotary actuator24 Sep 2026US 2026/0286987 A1
- Actuator curved inner length measurement apparatus and method for measuring actuator curved inner length19 Mar 2026US 2026/0078781 A1Bridgestone Corporation
- Rotary actuator1 May 2025US 2025/0137472 A1Nabtesco Corporation
- Tensioning device3 Aug 2023US 2023/0242064 A1Autoliv Development AB
- Air-fuel system for a circulating piston engine15 Sep 2022US 2022/0290629 A1WB Development Company, LLC
Most cited
By later US patents
- Bendable actuator38US 5,083,498 ABridgestone Corporation · 1992
- Rotary actuator device having an annular piston rod34US 5,235,900 ASociete Europeenne de Propulsion · 1993
- Rotary actuator33US 5,054,374 AKeystone International Holdings Corp. · 1991
- Hydraulic actuator31US 4,242,947 ARenner and Lovelace, Inc. · 1981
- Actuator for transfer of forward and backward rotational movement31US 5,495,791 A1996