B25J 9/144
Linear actuators
Official title: {Linear actuators}
B25J9/144 (Linear actuators) appears on 139 US grants and 152 published applications in this corpus.
Search patents in B25J- Granted patents
- 139
- Published applications
- 152
- Assignees
- 113
- Inventors
- 377
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 2 | 3 |
| 2013 | 3 | 1 |
| 2014 | 1 | 2 |
| 2015 | 1 | 2 |
| 2016 | 5 | 4 |
| 2017 | 5 | 11 |
| 2018 | 9 | 9 |
| 2019 | 7 | 12 |
| 2020 | 14 | 11 |
| 2021 | 12 | 17 |
| 2022 | 7 | 21 |
| 2023 | 10 | 21 |
| 2024 | 19 | 10 |
| 2025 | 9 | 14 |
| 2026 | 9 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pneumatic energy generation device14 Jul 2026US 12,678,936 B2Industry-Academic Cooperation Foundation, Yonsei University
- Micro electro-hydraulic linear actuator and hand of electro-hydraulic driven robot21 Apr 2026US 12,605,850 B2Shenzhen Spherical Fluid Power Technology Co., Ltd.
- Soft pneumatic hexapedal robot, and uses thereof7 Apr 2026US 12,594,666 B2The Regents of the University of California
- Three-degree-of-freedom parallel mechanism, parallel robot and machine tool31 Mar 2026US 12,589,484 B2Tianjin University
- Systems, devices, and methods for a hydraulic robotic arm10 Mar 2026US 12,569,982 B2Sanctuary Cognitive Systems Corporation
- Systems, devices, and methods for a hydraulic robotic arm16 Jul 2026US 2026/0200077 A1Sanctuary Cognitive Systems Corporation
- Integrated hydro-electric actuation and thermal management system with distributed electrolytic energy storage4 Jun 2026US 2026/0151899 A1
- Supporting apparatus for robot and robot2 Apr 2026US 2026/0091484 A1
- Fluid Pressure Actuator and Attachment12 Feb 2026US 2026/0043390 A1Koganei Corporation
- Method for handling an object by means of a gripping apparatus, and handling apparatus for carrying out the method30 Oct 2025US 2025/0332740 A1J. Schmalz GmbH
Most cited
By later US patents
- Surgical robotic system and hydraulic actuator therefor1,329US 5,791,231 AEndorobotics Corporation · 1998
- Picker47US 4,005,782 AEngineered Metal Products Company, Inc. · 1977
- Extensible manipulator unit29US 4,473,249 A1984
- Infinitely adjustable travel lead screw and multi-cylinder driven movement unit21US 5,059,089 A1991
- Micromanipulator for inverted-design microscope20US 4,749,270 AOlympus Optical Co., Ltd. · 1988