B29C 45/53
Using injection ram or piston
Official title: using injection ram or piston
B29C45/53 (Using injection ram or piston) appears on 346 US grants and 325 published applications in this corpus.
Search patents in B29C- Granted patents
- 346
- Published applications
- 325
- Assignees
- 231
- Inventors
- 718
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 6 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 11 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 9 | 0 |
| 1999 | 8 | 0 |
| 2000 | 13 | 0 |
| 2001 | 10 | 5 |
| 2002 | 11 | 8 |
| 2003 | 14 | 23 |
| 2004 | 4 | 10 |
| 2005 | 4 | 15 |
| 2006 | 8 | 10 |
| 2007 | 7 | 14 |
| 2008 | 9 | 12 |
| 2009 | 5 | 9 |
| 2010 | 13 | 6 |
| 2011 | 5 | 7 |
| 2012 | 3 | 11 |
| 2013 | 4 | 7 |
| 2014 | 7 | 10 |
| 2015 | 8 | 14 |
| 2016 | 11 | 12 |
| 2017 | 3 | 7 |
| 2018 | 7 | 10 |
| 2019 | 7 | 13 |
| 2020 | 9 | 12 |
| 2021 | 8 | 34 |
| 2022 | 18 | 26 |
| 2023 | 12 | 13 |
| 2024 | 21 | 12 |
| 2025 | 9 | 17 |
| 2026 | 12 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B29C 45/54And plasticising screw201
- B29C 45/531Drive means therefor57
- B29C 45/532Using a hollow injection ram co-operating with a coaxial screw17
- B29C 2045/536Rotatable injection plungersIndexing code9
- B29C 45/535Using two or more cooperating injection rams8
- B29C 2045/538The plunger being part of the mould cavity wall after injectionIndexing code4
- B29C 2045/537The injection plunger cooperating with a coaxial hollow transfer plungerIndexing code1
Recent patents
- Motor core manufacturing device and motor core manufacturing method22 Sep 2026US 12,741,405 B2NHK Spring Co., Ltd.
- Injection device8 Sep 2026US 12,728,576 B2Fanuc Corporation
- Manufacturing apparatus and manufacturing method of molded products11 Aug 2026US 12,703,134 B2Canon Kabushiki Kaisha
- Injection apparatus and method of manufacturing resin body28 Jul 2026US 12,691,616 B2Canon Kabushiki Kaisha
- Extrusion device30 Jun 2026US 12,668,005 B2Aisapack Holding S.A.
- Manufacturing apparatus control method, manufacturing system, control apparatus, and molded article manufacturing method17 Sep 2026US 2026/0273821 A1Canon Kabushiki Kaisha
- Melter device for injection molding apparatus and injection-molded object using the same13 Aug 2026US 2026/0233447 A1Century Innovation Corporation
- Motor core manufacturing method and motor core manufacturing apparatus25 Jun 2026US 2026/0175482 A1NHK Spring Co., Ltd.
- Injection Molding Machine, Injection Device, and Method of Controlling Injection Molding Machine7 May 2026US 2026/0124797 A1The Japan Steel Works, Ltd.
- A Variable Flow Recyclable Material Extrusion System and Method30 Apr 2026US 2026/0115989 A1Waste To Product Technologies Ltd.
Most cited
By later US patents
- Multi-cavity, co-injection molding apparatus83US 5,028,226 ACMB Foodcan plc · 1991
- Method and apparatus for manufacturing metallic parts by fine die casting64US 6,283,197 B1Takata Corporation · 2001
- Process and apparatus for compounding and injection-moulding desiccant-filled polymers47US 7,744,788 B2Airsec S.A.S. · 2010
- Method and apparatus for manufacturing metallic parts by fine die casting46US 5,983,976 ATakata Corporation · 1999
- Method and device for mold press forming41US 5,389,315 AKasai Kogyo Co., Ltd. · 1995