B29C 49/56
Opening, closing or clamping means
B29C49/56 (Opening, closing or clamping means) appears on 440 US grants and 315 published applications in this corpus.
Search patents in B29C- Granted patents
- 440
- Published applications
- 315
- Assignees
- 159
- Inventors
- 657
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 6 | 0 |
| 1981 | 10 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 8 | 0 |
| 1987 | 6 | 0 |
| 1988 | 8 | 0 |
| 1989 | 11 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 0 | 0 |
| 1993 | 9 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 9 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 0 |
| 2002 | 10 | 4 |
| 2003 | 4 | 10 |
| 2004 | 12 | 9 |
| 2005 | 8 | 10 |
| 2006 | 11 | 8 |
| 2007 | 6 | 6 |
| 2008 | 6 | 17 |
| 2009 | 2 | 12 |
| 2010 | 10 | 12 |
| 2011 | 15 | 16 |
| 2012 | 12 | 35 |
| 2013 | 20 | 16 |
| 2014 | 27 | 17 |
| 2015 | 20 | 19 |
| 2016 | 11 | 17 |
| 2017 | 14 | 19 |
| 2018 | 19 | 14 |
| 2019 | 18 | 12 |
| 2020 | 9 | 8 |
| 2021 | 12 | 16 |
| 2022 | 11 | 14 |
| 2023 | 9 | 6 |
| 2024 | 6 | 8 |
| 2025 | 9 | 6 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B29C 49/5601Mechanically operated, i.e. closing or opening of the mould parts is done228
- B29C 2049/566Locking meansIndexing code96
- B29C 49/561Characterised by speed80
- B29C 2049/563Clamping meansIndexing code77
- B29C 49/5605Hydraulically operated, i.e. closing or opening of the mould parts is done68
- B29C 49/5608Asymmetric movement of mould parts42
- B29C 49/5612Characterised by bottom part movement37
- B29C 49/5607Electrically operated33
Recent patents
- Superplastic forming machine and a method of superplastic forming1 Sep 2026US 12,722,337 B2
- Method for producing a container product and device for implementing the method31 Mar 2026US 12,589,543 B2Kocher-Plastik Maschinenbau GmbH
- Blow-molding machine with detection of a locking state17 Mar 2026US 12,576,577 B2Krones AG
- Apparatus and method for forming plastic preforms into plastic containers10 Mar 2026US 12,570,034 B2Krones AG
- Device and method for manufacturing plastic containers30 Dec 2025US 12,508,763 B2Kocher-Plastik Maschinenbau GmbH
- Device for Producing Hollow Bodies27 Aug 2026US 2026/0249541 A1Bekum Maschinenfabriken GmbH
- Blocking and locking device for a thermoforming mold half2 Jul 2026US 2026/0184008 A1Ftt S.R.L.
- Mold device26 Mar 2026US 2026/0084365 A1Sumitomo Heavy Industries, Ltd.
- Blow molding mechanism29 Jan 2026US 2026/0027763 A1Sumitomo Heavy Industries, Ltd.
- Blow molding device16 Oct 2025US 2025/0319645 A1Hnx Co., Ltd.
Most cited
By later US patents
- Method of forming wide-mouth, heat-set, pinch-grip containers150US 6,277,321 B1Schmalbach-Lubeca AG · 2001
- Pressure resisting plastic bottle125US 4,465,199 A1984
- Blow molding method88US 4,177,239 ABekum Maschinenfabriken GmbH · 1979
- Device for blow moulding71US 5,346,386 AKrupp Corpoplast Maschinenbau GmbH · 1994
- Multiple utilization of blow-mold air54US 5,648,026 AKrupp Corpoplast Maschinenbau GmbH · 1997