B29C 45/20
Injection nozzles
Official title: Injection nozzles {(B29C45/1603 takes precedence)}
B29C45/20 (Injection nozzles) appears on 415 US grants and 404 published applications in this corpus.
Search patents in B29C- Granted patents
- 415
- Published applications
- 404
- Assignees
- 234
- Inventors
- 781
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 5 | 0 |
| 1978 | 11 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 9 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 7 | 0 |
| 1990 | 6 | 0 |
| 1991 | 7 | 0 |
| 1992 | 4 | 0 |
| 1993 | 14 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 7 | 0 |
| 2002 | 2 | 4 |
| 2003 | 6 | 4 |
| 2004 | 1 | 7 |
| 2005 | 1 | 6 |
| 2006 | 3 | 7 |
| 2007 | 10 | 3 |
| 2008 | 5 | 7 |
| 2009 | 4 | 8 |
| 2010 | 6 | 3 |
| 2011 | 3 | 5 |
| 2012 | 4 | 8 |
| 2013 | 6 | 24 |
| 2014 | 9 | 19 |
| 2015 | 19 | 22 |
| 2016 | 19 | 28 |
| 2017 | 20 | 35 |
| 2018 | 17 | 34 |
| 2019 | 16 | 15 |
| 2020 | 24 | 14 |
| 2021 | 10 | 22 |
| 2022 | 15 | 25 |
| 2023 | 19 | 30 |
| 2024 | 19 | 32 |
| 2025 | 26 | 26 |
| 2026 | 15 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B29C 45/23Feed stopping equipment171
- B29C 45/22Multiple nozzle systems58
- B29C 45/24Cleaning equipment35
- B29C 2045/202Laterally adjustable nozzle or nozzle tip mountingsIndexing code7
- B29C 2045/207Preventing stringing of the moulding materialIndexing code6
- B29C 2045/205Elongated nozzle openingsIndexing code5
Recent patents
- Guillotine obturation valve for injection molding4 Aug 2026US 12,697,759 B2INGLASS S.p.A.
- Extrusion device30 Jun 2026US 12,668,005 B2Aisapack Holding S.A.
- Injection unit with telescopic melt coupling30 Jun 2026US 12,668,007 B2Husky Injection Molding Systems Ltd.
- Adjustment method for shut-off nozzle, shut-off nozzle, injection device, and injection molding machine30 Jun 2026US 12,668,008 B2The Japan Steel Works, Ltd.
- Shut-off nozzle of vertical injection molding machine, injection device, and vertical injection molding machine16 Jun 2026US 12,654,372 B2The Japan Steel Works, Ltd.
- Injection moulding tool with multi-part mould insert frame3 Sep 2026US 2026/0257406 A1FOSTAG Formenbau AG
- An injection molding machine27 Aug 2026US 2026/0249532 A1Lego A/S
- Melter device for injection molding apparatus and injection-molded object using the same13 Aug 2026US 2026/0233447 A1Century Innovation Corporation
- Shut-off nozzle for injection molding23 Jul 2026US 2026/0208415 A1Moxietec, LLC
- Foam molding method, control method for injection molding machine for foam molding, and injection molding machine for foam molding2 Jul 2026US 2026/0183994 A1Shibaura Machine Co., Ltd.
Most cited
By later US patents
- Golf club heads and methods to manufacturing golf club heads127US 9,345,938 B2Parsons Xtreme Golf, LLC · 2016
- Golf club heads and methods to manufacture golf club heads105US 9,364,727 B2Parsons Xtreme Golf, LLC · 2016
- Golf club heads and methods to manufacture golf club heads89US 9,675,853 B2Parsons Xtreme Golf, LLC · 2017
- Apparatus for injection molding synthetic resin materials87US 4,106,887 AAsahi-Dow Limited · 1978
- Nozzle shut-off valve for an injection molding machine68US 5,035,605 ACincinnati Milacron Inc. · 1991