B61H 7/12
Grippers co-operating frictionally with tracks
B61H7/12 (Grippers co-operating frictionally with tracks) appears on 29 US grants and 27 published applications in this corpus.
Search patents in B61H- Granted patents
- 29
- Published applications
- 27
- Assignees
- 22
- Inventors
- 67
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 2 |
| 2015 | 2 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 2 |
| 2018 | 0 | 2 |
| 2019 | 2 | 1 |
| 2020 | 3 | 4 |
| 2021 | 1 | 1 |
| 2022 | 3 | 3 |
| 2023 | 1 | 0 |
| 2024 | 1 | 3 |
| 2025 | 0 | 1 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Overhead rail and trolley system3 Feb 2026US 12,539,898 B2Pellerin Milnor Corporation
- Train forewarning braking system13 Jan 2026US 12,522,267 B2
- System for controlling multi-point synchronous braking of monorail hoist and utilization method thereof24 Dec 2024US 12,172,683 B2China University of Mining and Technology
- Electromechanical storm brake actuator5 Dec 2023US 11,835,099 B2
- Ultra-clean manually-actuated clamping brake4 Oct 2022US 11,459,005 B2Raytheon Company
- Overhead rail and trolley system6 Aug 2026US 2026/0225628 A1Pellerin Milnor Corporation
- Overhead rail and trolley system21 May 2026US 2026/0138653 A1Pellerin Milnor Corporation
- Magnetic track brake system8 Jan 2026US 2026/0009412 A1Transportation IP Holdings, LLC
- Brake shoe for self-clamping retention of a unit that is transportable on rails2 Oct 2025US 2025/0305549 A1Siemens Energy Global GmbH & Co. KG
- System for controlling multi-point synchronous braking of monorail hoist and utilization method thereof28 Nov 2024US 2024/0391509 A1China University of Mining and Technology
Most cited
By later US patents