B29C 48/338
Using a die with concentric parts
Official title: {using a die with concentric parts, e.g. rings, cylinders}
B29C48/338 (Using a die with concentric parts) appears on 120 US grants and 63 published applications in this corpus.
Search patents in B29C- Granted patents
- 120
- Published applications
- 63
- Assignees
- 89
- Inventors
- 213
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 2 |
| 2002 | 1 | 2 |
| 2003 | 5 | 2 |
| 2004 | 1 | 4 |
| 2005 | 0 | 4 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 2 | 4 |
| 2013 | 1 | 1 |
| 2014 | 3 | 3 |
| 2015 | 2 | 5 |
| 2016 | 3 | 4 |
| 2017 | 2 | 4 |
| 2018 | 3 | 2 |
| 2019 | 3 | 1 |
| 2020 | 4 | 3 |
| 2021 | 0 | 3 |
| 2022 | 2 | 1 |
| 2023 | 3 | 4 |
| 2024 | 2 | 4 |
| 2025 | 3 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Extrusion technique for forming polymer preforms, and tube-forming technique21 Apr 2026US 12,605,873 B2Kautex Maschinenbau System GmbH
- Striped cable and process and apparatus for making same27 Jan 2026US 12,537,118 B2Southwire Company
- Method and apparatus for forming high strength products2 Sep 2025US 12,403,641 B2Guill Tool & Engineering Co., Inc.
- Co-extruded multilayer articles including continuous layer and discontinuous layer20 May 2025US 12,304,186 B23M Innovative Properties Company
- Coextrusion die for manufacturing multilayer tubular preforms made from thermoplastic plastic25 Feb 2025US 12,233,587 B2BBM Maschinenbau und Vertriebs GmbH
- Extrusion device, method for manufacturing a hollow structure, and use of an extrusion device16 Jan 2025US 2025/0017718 A1Friedrich-Alexander-Universitaet Erlangen-Nuernberg
- Creating hydrogel films using a multilayered extrusion reactor apparatus28 Nov 2024US 2024/0391153 A1The University of British Columbia
- Extrusion unit for forming plastic preforms, and profiling technique28 Mar 2024US 2024/0100760 A1Kautex Maschinenbau GmbH
- Extrusion technique for forming polymer preforms, and tube-forming technique21 Mar 2024US 2024/0092009 A1Kautex Maschinenbau GmbH
- Method and apparatus for forming high strength products14 Mar 2024US 2024/0083084 A1Guill Tool & Engineering Co., Inc.
Most cited
By later US patents
- Oriented polymeric products67US 6,053,214 AUponor N.V. · 2000
- Tubular lining material and a method and apparatus for manufacturing same47US 4,600,615 AAshimori Industry Co., Ltd. · 1986
- Non-slip plastic film43US 4,488,918 AOy Wiik & Hoglund AB · 1984
- Extrusion die for extrusion blow molding equipment43US 5,156,857 AAmerican National Can Company · 1992
- Plastic net composed of co-extruded composite strands42US 4,656,075 ALeucadia, Inc. · 1987