B66D 5/26
Pneumatic or hydraulic
Official title: pneumatic or hydraulic
B66D5/26 (Pneumatic or hydraulic) appears on 84 US grants and 46 published applications in this corpus.
Search patents in B66D- Granted patents
- 84
- Published applications
- 46
- Assignees
- 68
- Inventors
- 155
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 2 |
| 2007 | 2 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 2 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 2 |
| 2015 | 2 | 3 |
| 2016 | 0 | 2 |
| 2017 | 5 | 6 |
| 2018 | 3 | 4 |
| 2019 | 4 | 3 |
| 2020 | 4 | 3 |
| 2021 | 3 | 3 |
| 2022 | 3 | 4 |
| 2023 | 0 | 2 |
| 2024 | 5 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pneumatic load balancing system and method3 Mar 2026US 12,565,407 B2Staccato Technologies AB
- Winch brake device30 Dec 2025US 12,509,333 B2Sumitomo Heavy Industries Construction Cranes Co., Ltd.
- Valve assembly and hydraulic circuit13 Aug 2024US 12,060,950 B2Dana Motion Systems Italia S.R.L.
- Forestry winch30 Jul 2024US 12,049,391 B2Bernward Welschof
- Work machine11 Jun 2024US 12,006,193 B2Kobelco Construction Machinery Co., Ltd.
- Disc Brake for a Hoist, Combining a Positive Brake and a Negative Brake25 Jun 2026US 2026/0177121 A1Stromag France SAS
- Drawworks Hydraulic Brake Performance Assessment System30 Apr 2026US 2026/0116713 A1
- Winch control device and crane comprising same26 Mar 2026US 2026/0084938 A1Kobelco Construction Machinery Co., Ltd.
- Braking system and method for braking with variable braking force20 Nov 2025US 2025/0353710 A1RINGSPANN GmbH
- Manually Operated, Hydraulic Lowering Device for Lifting Equipment29 May 2025US 2025/0171282 A1Stromag France SAS
Most cited
By later US patents
- Single failure proof crane44US 4,175,727 AEderer Incorporated · 1979
- Electronic winch monitoring system38US 7,063,306 B2PACCAR Inc · 2006
- Elevator car brake with shoes actuated by springs29US 5,228,540 AHollister-Whitney Elevator Corp. · 1993
- Method & apparatus for providing low speed safety braking for a hoist system26US 5,671,912 AEderer Incorporated · 1997
- Braking apparatus for elevator cage24US 5,323,878 AHitachi, Ltd. · 1994