B29C 43/54
Compensating volume change
Official title: Compensating volume change, e.g. retraction
B29C43/54 (Compensating volume change) appears on 41 US grants and 40 published applications in this corpus.
Search patents in B29C- Granted patents
- 41
- Published applications
- 40
- Assignees
- 37
- Inventors
- 92
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 3 |
| 2016 | 1 | 3 |
| 2017 | 1 | 2 |
| 2018 | 2 | 3 |
| 2019 | 2 | 2 |
| 2020 | 1 | 3 |
| 2021 | 3 | 5 |
| 2022 | 3 | 2 |
| 2023 | 2 | 5 |
| 2024 | 2 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for making a block for gravity energy storage5 May 2026US 12,617,171 B2Energy Vault, Inc.
- Diffraction light guide plate and manufacturing method thereof14 Oct 2025US 12,441,843 B2LG Chem.Ltd.
- Process for moulding and relative machine for moulding1 Oct 2024US 12,103,208 B2Persico S.P.A.
- System and method for making a block for gravity energy storage17 Sep 2024US 12,090,724 B2Energy Vault, Inc.
- Method for forming a stress-free multilayer PVC sheet material4 Jul 2023US 11,691,404 B2Kreafin Group SA
- System and method for making a block for gravity energy storage4 Sep 2025US 2025/0276505 A1Energy Vault, Inc.
- Devices and methods for consuming a plurality of liquids and mold apparatuses for forming such devices6 Mar 2025US 2025/0074657 A1
- System and method for making a block for gravity energy storage20 Jun 2024US 2024/0198619 A1Energy Vault, Inc.
- Casting mold for the production of a casting having a front and a back from a hardenable casting compound12 Oct 2023US 2023/0321877 A1Schock & Co. GmbH
- Casting mold for the production of a casting having a front and a back from a hardenable casting compound12 Oct 2023US 2023/0321882 A1Schock & Co. GmbH
Most cited
By later US patents
- Method of casting a contact lens120US 5,143,660 ANational Research Development Corporation · 1992
- Disposable contact lens package50US 5,573,108 ABritish Technology Group Limited · 1996
- Contact lens mould50US 5,578,332 ABritish Technology Group Limited · 1996
- Method and means for molding plastic parts39US 4,751,029 ANicholas Plastics, Inc. · 1988
- Injection molding of optical lenses and optical molds34US 4,284,591 ANeefe Optica Lab Inc. · 1981