F16D 2121/28
Using electrostrictive or magnetostrictive elements
Official title: using electrostrictive or magnetostrictive elements, e.g. piezoelectric elements
F16D2121/28 (Using electrostrictive or magnetostrictive elements) appears on 79 US grants and 66 published applications in this corpus.
Search patents in F16D- Granted patents
- 79
- Published applications
- 66
- Assignees
- 78
- Inventors
- 204
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 4 | 0 |
| 2003 | 2 | 0 |
| 2004 | 1 | 3 |
| 2005 | 0 | 3 |
| 2006 | 1 | 3 |
| 2007 | 1 | 1 |
| 2008 | 1 | 3 |
| 2009 | 2 | 3 |
| 2010 | 2 | 4 |
| 2011 | 0 | 4 |
| 2012 | 1 | 1 |
| 2013 | 4 | 3 |
| 2014 | 3 | 0 |
| 2015 | 0 | 5 |
| 2016 | 3 | 2 |
| 2017 | 1 | 4 |
| 2018 | 4 | 2 |
| 2019 | 4 | 3 |
| 2020 | 3 | 6 |
| 2021 | 4 | 2 |
| 2022 | 3 | 6 |
| 2023 | 2 | 2 |
| 2024 | 6 | 3 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Variable braking systems and devices30 Jun 2026US 12,668,439 B2Goodrich Corporation
- Robotic grippers14 Oct 2025US 12,441,004 B2Massachusetts Institute of Technology
- Variable braking systems and devices12 Nov 2024US 12,139,355 B2Goodrich Corporation
- Tool apparatus and method29 Oct 2024US 12,128,514 B2Festool GmbH
- Residual braking torque indication devices, systems, and methods27 Aug 2024US 12,071,994 B2ITT Italia S.r.l.
- Hub motor with electromagnetic braking device and scooter22 Jan 2026US 2026/0022750 A1Intradin (Shanghai) Intelligent Machinery Co., Ltd.
- Variable braking systems and devices30 Jan 2025US 2025/0033909 A1Goodrich Corporation
- Device with a magnetorheological braking device and method28 Nov 2024US 2024/0392847 A1INVENTUS Engineering GmbH
- Brake apparatus, wheel body assembly and rollator9 May 2024US 2024/0151282 A1Zhejiang Yihengyue Medical Technology Co., Ltd
- Safety brake system for robot arm joints1 Feb 2024US 2024/0035529 A1Eindhoven Medical Robotics B.V.
Most cited
By later US patents
- Brake control system72US 5,090,518 AGeneral Motors Corporation · 1992
- Brake apparatus71US 4,602,702 AJidosha Kiki Co., Ltd. · 1986
- Vehicle braking control apparatus49US 4,629,039 ANippon Soken, Inc. · 1986
- Releasing linear actuator49US 5,182,484 ARockwell International Corporation · 1993
- Piezoelectric brake device43US 4,854,424 AHonda Giken Kogyo Kabushiki Kaisha · 1989