F15B 15/1476
Special return means
Official title: {Special return means}
F15B15/1476 (Special return means) appears on 95 US grants and 106 published applications in this corpus.
Search patents in F15B- Granted patents
- 95
- Published applications
- 106
- Assignees
- 90
- Inventors
- 238
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 2 |
| 2002 | 4 | 2 |
| 2003 | 3 | 2 |
| 2004 | 2 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 3 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 2 | 2 |
| 2010 | 1 | 3 |
| 2011 | 0 | 5 |
| 2012 | 3 | 6 |
| 2013 | 4 | 4 |
| 2014 | 2 | 3 |
| 2015 | 7 | 8 |
| 2016 | 4 | 3 |
| 2017 | 5 | 6 |
| 2018 | 7 | 5 |
| 2019 | 4 | 10 |
| 2020 | 5 | 6 |
| 2021 | 8 | 6 |
| 2022 | 4 | 0 |
| 2023 | 6 | 6 |
| 2024 | 5 | 6 |
| 2025 | 4 | 5 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Safety device for a linearly actuated process valve26 May 2026US 12,638,097 B2Robert Bosch GmbH
- Stability and control augmentation system actuator10 Mar 2026US 12,570,393 B2Microtecnica S.R.L.
- Counterbalanced retract actuator for landing gear18 Nov 2025US 12,473,080 B2Goodrich Corporation
- Trigger valves for pressurized fluid operated devices7 Oct 2025US 12,434,366 B2Globalforce IP Limited
- Electro-hydraulic actuator and brake device12 Aug 2025US 12,384,349 B1Ican Company Ltd.
- Two-part piston hydraulic tool13 Aug 2026US 2026/0233373 A1
- Dual-wall cylinder for fluid control device actuator13 Aug 2026US 2026/0235144 A1
- Two-way quick cylinder and wood splitter9 Jul 2026US 2026/0194080 A1
- Brake cylinder for a vehicle brake14 May 2026US 2026/0131774 A1SAF-HOLLAND GmbH
- Hydraulic or pneumatic actuator for trip valves of steam turbines or turbo-expanders7 May 2026US 2026/0126127 A1Nuovo Pignone Tecnologie Srl
Most cited
By later US patents
- Power handle for hydraulic toothbrush-spray appliance27US 4,146,020 ALes Produits Associes LPA SA · 1979
- Hydraulic actuator with shock absorbing capability25US 6,176,170 B1Brunswick Corporation · 2001
- Rotary valve actuator24US 5,386,761 ASavings by Design, Inc. · 1995
- Hydraulic door operating system19US 5,921,604 AApplied Power Inc. · 1999
- Controllable pitch propeller with a fail safe increased pitch movement17US 6,340,290 B12002