B29C 45/68
Hydro-mechanical
Official title: hydro-mechanical
B29C45/68 (Hydro-mechanical) appears on 136 US grants and 103 published applications in this corpus.
Search patents in B29C- Granted patents
- 136
- Published applications
- 103
- Assignees
- 84
- Inventors
- 250
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 2 |
| 2002 | 5 | 4 |
| 2003 | 6 | 8 |
| 2004 | 6 | 11 |
| 2005 | 8 | 2 |
| 2006 | 4 | 8 |
| 2007 | 2 | 6 |
| 2008 | 10 | 4 |
| 2009 | 3 | 3 |
| 2010 | 5 | 2 |
| 2011 | 2 | 0 |
| 2012 | 1 | 3 |
| 2013 | 2 | 4 |
| 2014 | 2 | 4 |
| 2015 | 4 | 3 |
| 2016 | 4 | 4 |
| 2017 | 2 | 2 |
| 2018 | 3 | 2 |
| 2019 | 2 | 4 |
| 2020 | 1 | 3 |
| 2021 | 6 | 9 |
| 2022 | 2 | 5 |
| 2023 | 3 | 4 |
| 2024 | 5 | 2 |
| 2025 | 6 | 0 |
| 2026 | 0 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B29C 45/681Using a toggle mechanism as mould clamping device43
- B29C 2045/688Using tie rods as separate elements for clampingIndexing code29
- B29C 45/683Using both a toggle mechanism as mould closing device and another mechanism13
- B29C 2045/685Using mechanical drive means for mould closing to obtain the hydraulic clampingIndexing code12
- B29C 2045/686Using a screw and nut mechanism for mould closing and a mouldIndexing code7
Recent patents
- Mould-closing unit for an injection-moulding machine for processing plastics18 Nov 2025US 12,472,670 B2Arburg GmbH + Co KG
- Mold-clamping machine11 Nov 2025US 12,466,116 B2Nissei Plastic Industrial Co., Ltd.
- Electric mould opening and closing system of injection moulding machine21 Oct 2025US 12,447,657 B2Suzhou Gienkee Plastic Technology Co. , Ltd.
- Hybrid core driving device and molding machine24 Jun 2025US 12,337,514 B2Shibaura Machine Co., Ltd.
- Base frame for injection molding machine15 Apr 2025US 12,275,177 B2Sumitomo Heavy Industries, Ltd.
- Mold clamping device and mold clamping method30 Jul 2026US 2026/0216934 A1The Japan Steel Works, Ltd.
- Injection molding machine4 Jun 2026US 2026/0151944 A1Sumitomo Heavy Industries, Ltd.
- Closing unit for a molding machine9 Apr 2026US 2026/0097546 A1Engel Austria GmbH
- Clamping unit for a molding machine9 Apr 2026US 2026/0097548 A1Engel Austria GmbH
- Tie-bar-less clamping unit15 Aug 2024US 2024/0269898 A1Engel Austria GmbH
Most cited
By later US patents
- Mold clamping apparatus for molding machine35US 4,984,980 AUbe Industries, Ltd. · 1991
- Injection molding machine having a precision clamping unit29US 5,110,283 AMannesmann Aktiengesellschaft · 1992
- Hybrid electric and hydraulic actuation system27US 6,379,119 B1Globemag L-P · 2002
- Arrangement for carrying out a two-stage linear movement25US 5,345,766 AEngel Maschinenbau Gesellschaft m.b.H. · 1994
- Mold lockup mechanism21US 4,088,432 APackage Machinery Company · 1978