B66F 3/42
With self-contained pumps
Official title: with self-contained pumps, e.g. actuated by hand
B66F3/42 (With self-contained pumps) appears on 119 US grants and 88 published applications in this corpus.
Search patents in B66F- Granted patents
- 119
- Published applications
- 88
- Assignees
- 66
- Inventors
- 174
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 1 |
| 2003 | 2 | 6 |
| 2004 | 6 | 7 |
| 2005 | 0 | 1 |
| 2006 | 3 | 0 |
| 2007 | 3 | 1 |
| 2008 | 2 | 0 |
| 2009 | 0 | 3 |
| 2010 | 1 | 3 |
| 2011 | 1 | 2 |
| 2012 | 1 | 7 |
| 2013 | 1 | 2 |
| 2014 | 1 | 3 |
| 2015 | 5 | 3 |
| 2016 | 5 | 3 |
| 2017 | 4 | 6 |
| 2018 | 3 | 4 |
| 2019 | 3 | 2 |
| 2020 | 4 | 5 |
| 2021 | 5 | 1 |
| 2022 | 1 | 6 |
| 2023 | 7 | 5 |
| 2024 | 5 | 6 |
| 2025 | 4 | 6 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Oil release mechanism for lightweight jack21 May 2026US 2026/0138857 A1Hangzhou Tianheng Machinery Co., Ltd.
- Dual action jack30 Apr 2026US 2026/0116715 A1Pro Eagle LLC
- Oil circuit system, lifting device, electric jack, press, crane, and tire mounting/dismounting and transport apparatus12 Mar 2026US 2026/0070764 A1Snit Hydraulic Co., Ltd.
- Hydraulic jack assembly and pin puller assembly2 Oct 2025US 2025/0305522 A1Enerpac Tool Group Corp.
Most cited
By later US patents
- Fixed limit lifting jack41US 4,131,263 ANorco Industries, Inc. · 1978
- Multiple pump transmission jack38US 5,975,496 ANorco Industries, Inc. · 1999
- Patient lifting device25US 4,144,713 AApplied Power Inc. · 1979
- Self stowing vehicle leveling hydraulic jack20US 4,235,542 A1980
- Power unit for use with a jack stand that is convertible into a load-lifting jack19US 6,986,503 B22006