B29C 2045/545
Alternately operating injection plungers
Official title: {alternately operating injection plungers}
B29C2045/545 (Alternately operating injection plungers) appears on 16 US grants and 17 published applications in this corpus.
Search patents in B29C- Granted patents
- 16
- Published applications
- 17
- Assignees
- 17
- Inventors
- 51
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 2 |
| 2003 | 1 | 3 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 4 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Extrusion device30 Jun 2026US 12,668,005 B2Aisapack Holding S.A.
- Injection molding machine, injection molding apparatus, and injection molding method30 May 2023US 11,660,794 B2Toyota Jidosha Kabushiki Kaisha
- Injection device provided with flow path switching block1 Dec 2020US 10,850,438 B2The Japan Steel Works, Ltd.
- In an injection molding machine, a method of controlling a melt accumulator31 May 2016US 9,352,503 B2Husky Injection Molding Systems Ltd.
- Injection molding system including a melt filter, the filter being located before first instance of melt accumulation14 Jan 2014US 8,628,323 B2Husky Injection Molding Systems Ltd.
- Injection molding device4 Dec 2025US 2025/0367867 A1Suntory Holdings Limited
- Extrusion device5 Jun 2025US 2025/0178254 A1Aisapack Holding S.A.
- Injection apparatus for producing hollow plastic articles, in particular bottle preforms13 Feb 2025US 2025/0050560 A1S.I.P.A. Societa' Industrializzazione Progettazione E Automazione S.P.A.
- Injection molding machine, injection molding apparatus, and injection molding method19 May 2022US 2022/0152898 A1Toyota Jidosha Kabushiki Kaisha
- Injection device provided with flow path switching block14 Feb 2019US 2019/0047195 A1The Japan Steel Works, Ltd.
Most cited
By later US patents
- Apparatus and method for molding of polyester articles directly from a melt31US 5,968,429 AEastman Chemical Company · 1999
- Molding apparatus and a method of using the same27US 5,605,707 AThermold Partners L.P. · 1997
- Apparatus and method for molding polyester articles having low acetaldehyde content directly from the melt formation using flash tank devoltatilization23US 5,980,797 AEastman Chemical Company · 1999
- Method for exerting stress tensor to molding material20US 5,543,092 ASolomat Partners, L.P. · 1996
- Method of producing solid shape forms containing an active ingredient15US 7,014,810 B2Abbott GmbH & Co. KG · 2006