B29C 48/48
Two or more rams or pistons
B29C48/48 (Two or more rams or pistons) appears on 47 US grants and 35 published applications in this corpus.
Search patents in B29C- Granted patents
- 47
- Published applications
- 35
- Assignees
- 45
- Inventors
- 141
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 2 |
| 2004 | 3 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 3 |
| 2008 | 1 | 2 |
| 2009 | 0 | 2 |
| 2010 | 2 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 4 |
| 2013 | 0 | 1 |
| 2014 | 3 | 1 |
| 2015 | 2 | 2 |
| 2016 | 2 | 0 |
| 2017 | 1 | 0 |
| 2018 | 1 | 2 |
| 2019 | 1 | 0 |
| 2020 | 0 | 2 |
| 2021 | 0 | 0 |
| 2022 | 1 | 2 |
| 2023 | 1 | 1 |
| 2024 | 0 | 2 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Apparatus and method for extruding curved profiles29 Jul 2025US 12,370,591 B2Imperial College Innovations Limited
- Processes and/or machines for producing continuous plastic deformation, and/or compositions and/or manufactures produced thereby8 Jul 2025US 12,350,740 B2
- Processes and/or machines for producing continuous plastic deformation, and/or compositions and/or manufactures produced thereby4 Jul 2023US 11,691,201 B2
- Extrusion device for the processing of plastics, which can be coupled to systems for supplying thermosetting and thermoplastic polymers12 Apr 2022US 11,298,864 B2
- Articles containing PTFE having improved dimensional stability particularly over long lengths, methods for making such articles, and cable/wire assemblies containing such articles12 Nov 2019US 10,472,432 B2Saint-Gobain Performance Plastics Corporation
- Processes and/or Machines for Producing Continuous Plastic Deformation, and/or Compositions and/or Manufactures Produced Thereby16 Oct 2025US 2025/0319517 A1
- Method and device for coaxially extruding an extruded product8 Feb 2024US 2024/0042667 A1Technische UniversitäT Berlin
- Method and device for producing an extruded product25 Jan 2024US 2024/0024938 A1Technische UniversitäT Berlin
- Processes and/or Machines for Producing Continuous Plastic Deformation, and/or Compositions and/or Manufactures Produced Thereby5 Oct 2023US 2023/0311210 A1
- Processes and/or Machines for Producing Continuous Plastic Deformation, and/or Compositions and/or Manufactures Produced Thereby8 Sep 2022US 2022/0281005 A1
Most cited
By later US patents
- Process and apparatus for creating a colorful three-dimensional object372US 6,129,872 A2000
- Solid freeform fabrication using chemically reactive suspensions67US 6,454,972 B1Sandia Corporation · 2002
- Blow molding apparatus61US 4,149,839 AIshikawajima-Harima Jukogyo Kabushiki Kaisha · 1979
- Extrusion molding equipment for multi-layer parison47US 4,867,664 AMazda Motor Corporation · 1989
- Method and apparatus for the continuous formation of an extruded product40US 5,132,549 ANational Research Development Corporation · 1992