B29C 45/2806
Consisting of needle valve systems
Official title: {consisting of needle valve systems (B29C45/2896 takes precedence)}
B29C45/2806 (Consisting of needle valve systems) appears on 705 US grants and 628 published applications in this corpus.
Search patents in B29C- Granted patents
- 705
- Published applications
- 628
- Assignees
- 224
- Inventors
- 692
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 7 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 8 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 8 | 0 |
| 1988 | 8 | 0 |
| 1989 | 4 | 0 |
| 1990 | 12 | 0 |
| 1991 | 9 | 0 |
| 1992 | 10 | 0 |
| 1993 | 8 | 0 |
| 1994 | 9 | 0 |
| 1995 | 8 | 0 |
| 1996 | 8 | 0 |
| 1997 | 6 | 0 |
| 1998 | 13 | 0 |
| 1999 | 16 | 0 |
| 2000 | 13 | 0 |
| 2001 | 22 | 2 |
| 2002 | 16 | 19 |
| 2003 | 14 | 23 |
| 2004 | 21 | 35 |
| 2005 | 5 | 15 |
| 2006 | 19 | 37 |
| 2007 | 29 | 24 |
| 2008 | 27 | 28 |
| 2009 | 18 | 31 |
| 2010 | 25 | 25 |
| 2011 | 25 | 17 |
| 2012 | 21 | 27 |
| 2013 | 17 | 28 |
| 2014 | 11 | 30 |
| 2015 | 17 | 24 |
| 2016 | 24 | 34 |
| 2017 | 16 | 32 |
| 2018 | 28 | 40 |
| 2019 | 25 | 27 |
| 2020 | 27 | 19 |
| 2021 | 29 | 32 |
| 2022 | 24 | 28 |
| 2023 | 24 | 24 |
| 2024 | 14 | 13 |
| 2025 | 19 | 10 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B29C 45/281Drive means therefor348
- B29C 2045/2872With at least three positionsIndexing code91
- B29C 2045/2889Sealing guide bushings thereforIndexing code60
- B29C 2045/2865Having position detecting meansIndexing code59
- B29C 2045/2848Having an adjustable stroke lengthIndexing code50
- B29C 2045/2882Closing by a movement in the counterflow directionIndexing code43
- B29C 2045/2886Closing at a distance from the gateIndexing code37
- B29C 2045/2855Intersecting the nozzle or runner channelIndexing code21
All 15 subgroupsShow fewer
- B29C 2045/2875Preventing rotation of the needle valveIndexing code19
- B29C 2045/2862Being tubularIndexing code18
- B29C 2045/2893Multiple coaxial needle valvesIndexing code17
- B29C 2045/2858Materials or coatings thereforIndexing code16
- B29C 2045/2879Back flow of material into nozzle channelIndexing code16
- B29C 2045/2868With an incorporated heat pipeIndexing code13
- B29C 2045/2851Lateral movement between drive piston and needle valveIndexing code8
Recent patents
- Guillotine obturation valve for injection molding4 Aug 2026US 12,697,759 B2INGLASS S.p.A.
- Injector body for injection molding10 Mar 2026US 12,570,030 B2INGLASS S.p.A.
- Injection molding apparatus24 Feb 2026US 12,558,828 B2INGLASS S.p.A.
- Method and apparatus for controlled injection fluid flow30 Dec 2025US 12,508,756 B2Synventive Molding Solutions, Inc.
- Flow control of an injection molding system23 Dec 2025US 12,502,816 B2Incoe Corporation
- System and method for monitoring the closing position of a shutter pin2 Jul 2026US 2026/0183999 A1INGLASS S.p.A.
- Guillotine obturation valve for injection molding11 Jun 2026US 2026/0158717 A1INGLASS S.p.A.
- Injection mould and method for manufacturing parts2 Apr 2026US 2026/0091539 A1
- Injector Nozzle Tip for Plastic Injection Molding Machines12 Feb 2026US 2026/0042248 A1INGLASS S.p.A.
- Gate valve for controlling a flow of molten material11 Dec 2025US 2025/0377049 A1INGLASS S.p.A.
Most cited
By later US patents
- Injection molding gate flow control118US 5,556,582 AStanford University · 1996
- Retractable pin mold104US 4,959,000 AAcushnet Company · 1990
- Apparatus for injection molding synthetic resin materials87US 4,106,887 AAsahi-Dow Limited · 1978
- Tip heated hot runner nozzle87US 5,871,786 AKona Corporation · 1999
- Manifold system having flow control87US 6,464,909 B1Synventive Molding Solutions, Inc. · 2002