B29C 48/305
Having a wide opening
Official title: having a wide opening, e.g. for forming sheets
B29C48/305 (Having a wide opening) appears on 1,258 US grants and 1,189 published applications in this corpus.
Search patents in B29C- Granted patents
- 1,258
- Published applications
- 1,189
- Assignees
- 686
- Inventors
- 2,834
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 13 | 0 |
| 1978 | 19 | 0 |
| 1979 | 8 | 0 |
| 1980 | 16 | 0 |
| 1981 | 20 | 0 |
| 1982 | 14 | 0 |
| 1983 | 13 | 0 |
| 1984 | 16 | 0 |
| 1985 | 12 | 0 |
| 1986 | 14 | 0 |
| 1987 | 19 | 0 |
| 1988 | 23 | 0 |
| 1989 | 30 | 0 |
| 1990 | 16 | 0 |
| 1991 | 21 | 0 |
| 1992 | 19 | 0 |
| 1993 | 34 | 0 |
| 1994 | 13 | 0 |
| 1995 | 23 | 0 |
| 1996 | 19 | 0 |
| 1997 | 19 | 0 |
| 1998 | 24 | 0 |
| 1999 | 21 | 0 |
| 2000 | 20 | 0 |
| 2001 | 18 | 7 |
| 2002 | 27 | 32 |
| 2003 | 27 | 36 |
| 2004 | 26 | 50 |
| 2005 | 18 | 39 |
| 2006 | 29 | 33 |
| 2007 | 12 | 28 |
| 2008 | 5 | 54 |
| 2009 | 10 | 72 |
| 2010 | 30 | 69 |
| 2011 | 32 | 62 |
| 2012 | 34 | 49 |
| 2013 | 33 | 51 |
| 2014 | 38 | 44 |
| 2015 | 40 | 41 |
| 2016 | 31 | 57 |
| 2017 | 42 | 53 |
| 2018 | 37 | 69 |
| 2019 | 48 | 50 |
| 2020 | 53 | 47 |
| 2021 | 35 | 53 |
| 2022 | 29 | 59 |
| 2023 | 37 | 48 |
| 2024 | 44 | 40 |
| 2025 | 41 | 24 |
| 2026 | 16 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Copolyamide and polymer film containing at least one diamine, a dicarboxylic acid and 1,5-diamino-3-oxapentane25 Aug 2026US 12,715,963 B2BASF SE
- Method for forming a stress-free multilayer PVC sheet material4 Aug 2026US 12,697,807 B2Kreafin Group SA
- Resin composition28 Jul 2026US 12,692,372 B2Plantic Technologies Ltd.
- Stretching apparatus and parts replacement method of stretching apparatus26 May 2026US 12,636,818 B2The Japan Steel Works, Ltd.
- Decorative panel and process for producing a panel26 May 2026US 12,636,866 B2CFL Holding Limited
- Method for forming a stress-free multilayer pvc sheet material17 Sep 2026US 2026/0273910 A1Kreafin Group SA
- Extrusion molding apparatus27 Aug 2026US 2026/0249536 A1The Japan Steel Works, Ltd.
- Extrusion molding apparatus27 Aug 2026US 2026/0249537 A1The Japan Steel Works, Ltd.
- Decorative panel and process for producing a panel27 Aug 2026US 2026/0249597 A1CFL Holding Limited
- Film conveyance machine, film conveyance method, and film manufacturing apparatus30 Jul 2026US 2026/0216939 A1The Japan Steel Works, Ltd.
Most cited
By later US patents
- Multilayer polymeric film481US 5,006,394 AThe Procter & Gamble Company · 1991
- Coextrusion of multilayer articles using protective boundary layers and apparatus therefor319US 5,269,995 AThe Dow Chemical Company · 1993
- Layer thickness gradient control in multilayer polymeric bodies271US 5,389,324 AThe Dow Chemical Company · 1995
- Interfacial surface generator200US 5,094,788 AThe Dow Chemical Company · 1992
- Methods and apparatus for generating interfacial surfaces189US 5,094,793 AThe Dow Chemical Company · 1992