B29C 39/021
By casting in several steps
Official title: {by casting in several steps}
B29C39/021 (By casting in several steps) appears on 275 US grants and 326 published applications in this corpus.
Search patents in B29C- Granted patents
- 275
- Published applications
- 326
- Assignees
- 244
- Inventors
- 726
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 7 | 3 |
| 2002 | 8 | 9 |
| 2003 | 12 | 16 |
| 2004 | 7 | 14 |
| 2005 | 5 | 15 |
| 2006 | 8 | 8 |
| 2007 | 6 | 13 |
| 2008 | 8 | 20 |
| 2009 | 3 | 13 |
| 2010 | 10 | 15 |
| 2011 | 6 | 18 |
| 2012 | 8 | 8 |
| 2013 | 12 | 8 |
| 2014 | 7 | 11 |
| 2015 | 8 | 19 |
| 2016 | 10 | 25 |
| 2017 | 15 | 17 |
| 2018 | 15 | 16 |
| 2019 | 21 | 8 |
| 2020 | 10 | 15 |
| 2021 | 12 | 11 |
| 2022 | 6 | 11 |
| 2023 | 10 | 7 |
| 2024 | 8 | 15 |
| 2025 | 4 | 7 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Stick of cosmetic product comprising two compositions having a surface in relief, method and device for manufacturing such a stick of cosmetic product18 Aug 2026US 12,708,187 B2Parfums Christian Dior
- System and method for casting monolithic utility box14 Jul 2026US 12,679,007 B2Newbasis, LLC
- Weighted garment counterweight block, mixing device, and manufacturing process thereof26 May 2026US 12,636,817 B1Ninghai Yuteng Arts & Crafts Co., Ltd.
- Production method for personal care product3 Mar 2026US 12,564,998 B2Kao Corporation
- Composite material with coating layer17 Feb 2026US 12,552,944 B2ACS International Products LP
- Method for making embedded hydrogel contact lenses14 May 2026US 2026/0131506 A1Alcon Inc.
- Microstructure array for delivery of active agents26 Mar 2026US 2026/0083948 A1Panther Life Sciences Corporation
- Syntactic-foam parts and associated methods of making the same5 Feb 2026US 2026/0034709 A1The Boeing Company
- Syntactic-foam parts and associated methods of making the same5 Feb 2026US 2026/0034747 A1The Boeing Company
- Double-layer mold for machines for production of lipsticks or the like, and related manufacturing process20 Nov 2025US 2025/0351942 A1INTERCOS S. p. A.
Most cited
By later US patents
- Molding process352US 4,247,508 AHico Western Products Co. · 1981
- Method for forming polyurethane cover on golf ball core246US 5,733,428 AAcushnet Company · 1998
- Devices, methods, and systems involving castings203US 7,141,812 B2Mikro Systems, Inc. · 2006
- Methods for manufacturing three-dimensional devices and devices created thereby171US 7,410,606 B22008
- Solid immersion lens structures and methods for producing solid immersion lens structures145US 6,301,055 B1California Institute of Technology · 2001