B30B 1/323
Using low pressure long stroke opening and closing means, and high pressure
Official title: {using low pressure long stroke opening and closing means, and high pressure short stroke cylinder means}
B30B1/323 (Using low pressure long stroke opening and closing means, and high pressure) appears on 54 US grants and 23 published applications in this corpus.
Search patents in B30B- Granted patents
- 54
- Published applications
- 23
- Assignees
- 35
- Inventors
- 93
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
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| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 3 |
| 2008 | 2 | 2 |
| 2009 | 0 | 2 |
| 2010 | 3 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 3 |
| 2018 | 1 | 2 |
| 2019 | 1 | 0 |
| 2020 | 2 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rotor core molding method and system for molding a rotor core of an electric motor31 Mar 2026US 12,592,620 B2Boschman Technologies B.V.
- Piston-cylinder assembly of a hydraulic press9 Jul 2024US 12,030,272 B2Vahterus Oy
- Apparatus and method for cylinder changeover with a mechanically lockable force-building cylinder14 Feb 2023US 11,577,481 B2Moog Inc.
- Actuator device29 Sep 2020US 10,786,845 B2Hatebur Umformmaschinen AG
- Hydraulic system21 Apr 2020US 10,626,889 B2Moog Inc.
- Rotor core molding method and system for molding a rotor core of an electric motor2 May 2024US 2024/0146160 A1Boschman Technologies B.V.
- Piston-cylinder assembly of a hydraulic press18 Aug 2022US 2022/0258444 A1Vahterus Oy
- Apparatus and Method for Cylinder Changeover with a Mechanically Lockable Force-Building Cylinder10 Jun 2021US 2021/0170709 A1Moog Inc.
- Actuator Device8 Nov 2018US 2018/0318901 A1Hatebur Umformmaschinen AG
- Press and method for molding an ingot made of thermoplastic or thermosetting material20 Sep 2018US 2018/0264765 A1Persico S.P.A.
Most cited
By later US patents
- Hydraulic press34US 4,304,540 A1981
- Hydraulic machine26US 6,240,758 B1Toyokoki Co., Ltd. · 2001
- Single-strip molding apparatus23US 5,297,897 AASM Fico Tooling, b.v. · 1994
- Press locking apparatus20US 4,318,682 AEx-Cell-O Corporation · 1982
- High tonnage rim press17US 4,944,669 AThe Dow Chemical Company · 1990