B29C 2045/1612
Using needle valves with at least four positions
Official title: {using needle valves with at least four positions}
B29C2045/1612 (Using needle valves with at least four positions) appears on 29 US grants and 2 published applications in this corpus.
Search patents in B29C- Granted patents
- 29
- Published applications
- 2
- Assignees
- 7
- Inventors
- 15
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 5 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 6 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Machine and method for injection molding multilayer articles having a high proportion of internal layer material7 Apr 2026US 12,594,702 B2Husky Injection Molding Systems Ltd.
- Apparatus and method for coinjection of a multilayer molded article with a segmented internal layer23 Sep 2025US 12,420,466 B2Husky Injection Molding Systems Ltd.
- Apparatus for injection molding multi-layer articles25 Dec 2001US 6,332,767 B1Pechiney Emballage Flexible Europe
- Five layer injection molding apparatus having four position valve member actuating mechanism14 Aug 2001US 6,274,075 B1Mold-Masters Limited
- Methods and apparatus for injection molding and injection blow molding multi-layer articles, and the articles made thereby27 Feb 2001US 6,194,041 B1American National Can Company
- Machine and method for injection molding multilayer articles having a high proportion of internal layer material7 Dec 2023US 2023/0390983 A1Husky Injection Molding Systems Ltd.
- Apparatus and method for coinjection of a multilayer molded article with a segmented internal layer15 Sep 2022US 2022/0288825 A1Husky Injection Molding Systems Ltd.
Most cited
By later US patents
- Multi-cavity, co-injection molding apparatus83US 5,028,226 ACMB Foodcan plc · 1991
- Apparatus for simultaneously driving valve means through co-injection nozzles of a multi-cavity injection molding machine55US 4,497,621 AAmerican Can Company · 1985
- Methods for injection molding and blow-molding multi-layer plastic articles55US 5,523,045 AAmerican National Can Company · 1996
- Plastic containers with folded-over internal layers and methods for making same52US 4,554,190 AAmerican Can Company · 1985
- Apparatus for injection molding and injection blow molding multi-layer articles52US 4,946,365 AAmerican National Can Company · 1990