B21J 15/22
Operated by both hydraulic or liquid pressure and gas pressure
Official title: operated by both hydraulic or liquid pressure and gas pressure
B21J15/22 (Operated by both hydraulic or liquid pressure and gas pressure) appears on 95 US grants and 51 published applications in this corpus.
Search patents in B21J- Granted patents
- 95
- Published applications
- 51
- Assignees
- 41
- Inventors
- 111
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 1 |
| 2002 | 4 | 3 |
| 2003 | 2 | 0 |
| 2004 | 5 | 5 |
| 2005 | 4 | 3 |
| 2006 | 4 | 3 |
| 2007 | 4 | 3 |
| 2008 | 2 | 1 |
| 2009 | 1 | 2 |
| 2010 | 0 | 4 |
| 2011 | 3 | 0 |
| 2012 | 4 | 3 |
| 2013 | 3 | 3 |
| 2014 | 3 | 2 |
| 2015 | 1 | 5 |
| 2016 | 4 | 1 |
| 2017 | 0 | 0 |
| 2018 | 3 | 3 |
| 2019 | 0 | 2 |
| 2020 | 3 | 1 |
| 2021 | 1 | 1 |
| 2022 | 2 | 2 |
| 2023 | 1 | 1 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pneumohydraulic pressure intensifier12 May 2026US 12,624,710 B2WS Wieländer + Schill Engineering GmbH & Co. KG
- Fastener installation system with split tool head and actuation base22 Apr 2025US 12,280,418 B2Gage Bilt, Inc.
- Tool and method for crimping a part on a support19 Nov 2024US 12,145,192 B2Bollhoff Otalu S.A.
- Fastener installation system with split tool head and actuation base23 Jul 2024US 12,042,843 B2Gage Bilt, Inc.
- Device for fastening lockbolt8 Aug 2023US 11,717,878 B2
- Pneumohydraulic pressure intensifier22 Jan 2026US 2026/0022711 A1WS Wieländer + Schill Engineering GmbH & Co. KG
- Fastener installation system with split tool head and actuation base12 Dec 2024US 2024/0408665 A1Gage Bilt, Inc.
- Tool and method for crimping a part on a support9 Mar 2023US 2023/0074463 A1Bollhoff Otalu S.A.
- Joining tool for joining a deformable element to a workpiece9 Jun 2022US 2022/0176528 A1Dubuis Et Cie S.A S.
- Device for fastening lockbolt21 Apr 2022US 2022/0118504 A1
Most cited
By later US patents
- Hydropneumatic blind riveter with automatic mandrel catcher41US 4,515,005 AGesipa Blindniettechnik GmbH · 1985
- Pull type installation tool39US 4,597,263 AHuck Manufacturing Company · 1986
- Hydraulic fluid replenishment device36US 4,804,023 AAvdel Limited, British Company · 1989
- Shock-absorbing fluid-actuated fastener installation tool36US 4,878,372 AHuck Manufacturing Company · 1989
- Installation tool for pull type fasteners35US 4,580,435 AHuck Manufacturing Company · 1986