B29C 45/30
Flow control means disposed within the sprue channel
Official title: Flow control means disposed within the sprue channel, e.g. "torpedo" construction
B29C45/30 (Flow control means disposed within the sprue channel) appears on 254 US grants and 142 published applications in this corpus.
Search patents in B29C- Granted patents
- 254
- Published applications
- 142
- Assignees
- 95
- Inventors
- 299
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 7 | 0 |
| 1987 | 12 | 0 |
| 1988 | 9 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 9 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 9 | 2 |
| 2002 | 11 | 9 |
| 2003 | 9 | 7 |
| 2004 | 5 | 12 |
| 2005 | 2 | 7 |
| 2006 | 2 | 12 |
| 2007 | 11 | 7 |
| 2008 | 10 | 6 |
| 2009 | 8 | 12 |
| 2010 | 7 | 5 |
| 2011 | 7 | 2 |
| 2012 | 3 | 4 |
| 2013 | 2 | 3 |
| 2014 | 3 | 5 |
| 2015 | 1 | 2 |
| 2016 | 0 | 3 |
| 2017 | 3 | 4 |
| 2018 | 4 | 6 |
| 2019 | 2 | 5 |
| 2020 | 4 | 2 |
| 2021 | 4 | 4 |
| 2022 | 3 | 9 |
| 2023 | 5 | 3 |
| 2024 | 4 | 4 |
| 2025 | 5 | 5 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Guillotine obturation valve for injection molding4 Aug 2026US 12,697,759 B2INGLASS S.p.A.
- Runner turn-off for a mold3 Feb 2026US 12,539,655 B2Progressive Components International Corporation
- Flow control of an injection molding system23 Dec 2025US 12,502,816 B2Incoe Corporation
- Injection molding tool and method for the production thereof, and method for producing marbled molded parts14 Oct 2025US 12,441,038 B2BASF SE
- Method and device for producing marbled molded parts and method for producing the device14 Oct 2025US 12,441,039 B2BASF SE
- Injection molding machine and fluidity measurement method18 Jun 2026US 2026/0166795 A1Sodick Co., Ltd.
- Hot runner injection nozzle system suitable for co-injection molding with built-in obturator and variable gate direction9 Apr 2026US 2026/0097544 A1PLASDAN—Automacao e Sistemas, Lda.
- Injection molding device4 Dec 2025US 2025/0367867 A1Suntory Holdings Limited
- Runner turn-off for a mold6 Nov 2025US 2025/0340001 A1Progressive Components International Corporation
- Method and apparatus for injecting a molten material during an injection molding process30 Oct 2025US 2025/0332773 A1INGLASS S.p.A.
Most cited
By later US patents
- Mold device for making plastic articles from resin193US 4,451,224 AGeneral Electric Company · 1984
- Injection molding gate flow control118US 5,556,582 AStanford University · 1996
- Manifold system having flow control87US 6,464,909 B1Synventive Molding Solutions, Inc. · 2002
- Electric actuator for a melt flow control pin86US 6,294,122 B1Synventive Molding Solutions, Inc. · 2001
- Bushing tip for injection molding apparatus74US 5,545,028 AKona Corporation · 1996