B29C 33/56
Coatings
Official title: Coatings {, e.g. enameled or galvanised}; Releasing, lubricating or separating agents {(in-mould coating B29C37/0028; using or applying separating agents B29C37/0067)}
B29C33/56 (Coatings) appears on 1,545 US grants and 1,329 published applications in this corpus.
Search patents in B29C- Granted patents
- 1,545
- Published applications
- 1,329
- Assignees
- 988
- Inventors
- 3,736
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 23 | 0 |
| 1977 | 21 | 0 |
| 1978 | 17 | 0 |
| 1979 | 25 | 0 |
| 1980 | 21 | 0 |
| 1981 | 28 | 0 |
| 1982 | 20 | 0 |
| 1983 | 16 | 0 |
| 1984 | 21 | 0 |
| 1985 | 33 | 0 |
| 1986 | 23 | 0 |
| 1987 | 25 | 0 |
| 1988 | 31 | 0 |
| 1989 | 31 | 0 |
| 1990 | 36 | 0 |
| 1991 | 34 | 0 |
| 1992 | 27 | 0 |
| 1993 | 32 | 0 |
| 1994 | 24 | 0 |
| 1995 | 38 | 0 |
| 1996 | 33 | 0 |
| 1997 | 40 | 0 |
| 1998 | 60 | 0 |
| 1999 | 26 | 0 |
| 2000 | 28 | 0 |
| 2001 | 15 | 7 |
| 2002 | 30 | 53 |
| 2003 | 36 | 50 |
| 2004 | 27 | 46 |
| 2005 | 21 | 46 |
| 2006 | 20 | 55 |
| 2007 | 19 | 40 |
| 2008 | 25 | 74 |
| 2009 | 16 | 48 |
| 2010 | 31 | 57 |
| 2011 | 35 | 58 |
| 2012 | 35 | 77 |
| 2013 | 33 | 56 |
| 2014 | 33 | 58 |
| 2015 | 48 | 52 |
| 2016 | 40 | 61 |
| 2017 | 31 | 64 |
| 2018 | 39 | 55 |
| 2019 | 46 | 54 |
| 2020 | 47 | 55 |
| 2021 | 37 | 54 |
| 2022 | 34 | 56 |
| 2023 | 30 | 39 |
| 2024 | 39 | 53 |
| 2025 | 46 | 36 |
| 2026 | 19 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of manufacturing a wind turbine rotor blade part having an embedded placeholder29 Sep 2026US 12,747,718 B2Nordex Blade Technology Centre ApS
- Molding die, method for manufacturing molding die, and method for manufacturing molded product15 Sep 2026US 12,734,731 B2Kasai Kogyo Co., Ltd.
- Tool insert for a primary shaping tool and primary shaping tool equipped with said tool insert25 Aug 2026US 12,715,161 B2Heraeus Amloy Technologies GmbH
- Imprint mold, method for manufacturing the same and method for manufacturing reproduced imprint mold18 Aug 2026US 12,709,053 B2Shin-Etsu Chemical Co., Ltd.
- Mold release film11 Aug 2026US 12,703,126 B2Sumitomo Bakelite Co., Ltd.
- Coating layer composition for injection mold and injection mold comprising the same27 Aug 2026US 2026/0249521 A1Hyundai Motor Company
- Release film for molding and chip packaging method6 Aug 2026US 2026/0231811 A1Nan Ya Plastics Corporation
- Sacrificial additively manufactured mold with controlled moisture and liquid absorption properties30 Jul 2026US 2026/0216696 A1Nexa3D Inc.
- Mold release film30 Jul 2026US 2026/0216928 A1Sumitomo Bakelite Co., Ltd.
- Composite release films, and devices and methods using composite release film in field of additive manufacturing16 Jul 2026US 2026/0200143 A1Luxcreo (Beijing) Inc.
Most cited
By later US patents
- Mold release composition with polybutadiene and method of coating a mold core766US 5,601,641 ATSE Industries, Inc. · 1997
- Water based mold release compositions for making molded polyurethane foam621US 5,028,366 AAir Products and Chemicals, Inc. · 1991
- Method for the manufacture of pharmaceutical cellulose capsules328US 5,698,155 AGS Technologies, Inc. · 1997
- Release surfaces, particularly for use in nanoimprint lithography323US 6,309,580 B1Regents of the University of Minnesota · 2001
- Apparatus and method for the non-destructive separation of hardened material layers from a flat construction plane319US 7,438,846 B2Envisiontec GmbH · 2008