B29B 7/801
Valves
Official title: {Valves}
B29B7/801 (Valves) appears on 74 US grants and 67 published applications in this corpus.
Search patents in B29B- Granted patents
- 74
- Published applications
- 67
- Assignees
- 66
- Inventors
- 174
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 3 |
| 2004 | 1 | 1 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 2 | 3 |
| 2014 | 1 | 5 |
| 2015 | 6 | 8 |
| 2016 | 1 | 2 |
| 2017 | 5 | 3 |
| 2018 | 4 | 3 |
| 2019 | 1 | 7 |
| 2020 | 3 | 6 |
| 2021 | 1 | 5 |
| 2022 | 3 | 2 |
| 2023 | 5 | 1 |
| 2024 | 6 | 6 |
| 2025 | 1 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for adjusting pressure of mixture of gas and paste material discharged from dispenser13 Jan 2026US 12,521,747 B2Sunstar Engineering Inc.
- Device for supplying a mold with a polymerizable mixture6 Jan 2026US 12,515,375 B2Essilor International
- Lubricated mixing device for reaction plastics and method for generating reaction plastics19 Aug 2025US 12,390,778 B2KraussMaffei Technologies GmbH
- Plasticizing unit including a plasticizing screw rotationally and linearly movable within an injection cylinder and having a dam element26 Nov 2024US 12,151,405 B2Engel Austria GmbH
- Flexible tube production apparatus12 Nov 2024US 12,138,844 B2Pla Giken Co., Ltd.
- Internal mixer16 Apr 2026US 2026/0102748 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- High pressure mixing head for continuously producing polymeric foam20 Nov 2025US 2025/0353217 A1Afros S. P. A.
- Device for Providing a Plastic, and Method for Metering Out the Plastic29 May 2025US 2025/0170759 A1
- Valve Device for Injecting Gas into a Mixing Chamber of a Plastic Metering Device, and Plastic Metering Device6 Feb 2025US 2025/0041814 A1Henkel AG & Co. KGaA
- Methods, mixed resin retention assemblies, valve assemblies, and systems for inline resin mixing5 Dec 2024US 2024/0399622 A1The Boeing Company
Most cited
By later US patents
- Method for forming coating material formulations substantially comprised of a saturated resin rich phase39US 5,197,800 ANordson Corporation · 1993
- Automatic color pellet selecting and supplying apparatus for injection molding machine38US 5,282,548 AYoshida Kogyo K. K. · 1994
- Metering system & methods36US 6,840,404 B1Sealant Equipment & Engineering, Inc. · 2005
- Internal mixer25US 5,061,078 ASuzuka Engineering Co., Ltd. · 1991
- Polyurethane foam metering apparatus25US 5,375,743 A1994