B29B 7/7438
Mixing guns, i.e. hand-held mixing units having dispensing means
Official title: {Mixing guns, i.e. hand-held mixing units having dispensing means (B29B7/761, B29B7/7678 take precedence)}
B29B7/7438 (Mixing guns, i.e. hand-held mixing units having dispensing means) appears on 273 US grants and 182 published applications in this corpus.
Search patents in B29B- Granted patents
- 273
- Published applications
- 182
- Assignees
- 131
- Inventors
- 447
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 8 | 0 |
| 1979 | 6 | 0 |
| 1980 | 4 | 0 |
| 1981 | 7 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 9 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 4 | 0 |
| 1989 | 8 | 0 |
| 1990 | 9 | 0 |
| 1991 | 13 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 1 |
| 2002 | 3 | 5 |
| 2003 | 4 | 5 |
| 2004 | 2 | 5 |
| 2005 | 3 | 7 |
| 2006 | 2 | 8 |
| 2007 | 5 | 3 |
| 2008 | 2 | 11 |
| 2009 | 3 | 7 |
| 2010 | 5 | 5 |
| 2011 | 2 | 7 |
| 2012 | 5 | 13 |
| 2013 | 4 | 8 |
| 2014 | 6 | 15 |
| 2015 | 11 | 15 |
| 2016 | 7 | 10 |
| 2017 | 8 | 4 |
| 2018 | 7 | 9 |
| 2019 | 8 | 11 |
| 2020 | 7 | 6 |
| 2021 | 6 | 8 |
| 2022 | 7 | 4 |
| 2023 | 2 | 5 |
| 2024 | 6 | 6 |
| 2025 | 1 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Mixing and dispensing curable multi-component materials24 Feb 2026US 12,558,659 B23M Innovative Properties Company
- Dispensing nozzle having a tubular exit zone comprising vanes10 Feb 2026US 12,544,775 B2Ddp Specialty Electronic Materials US, LLC
- Independent heated hose18 Mar 2025US 12,251,724 B2Graco Minnesota Inc.
- System and method to auto-pressurize prior to dispense in a circulation dispense system22 Oct 2024US 12,122,068 B2Graco Minnesota Inc.
- Apparatus and method for producing and dispensing a reaction mixture25 Jun 2024US 12,017,385 B2Soudal
- Systems and methods for improved fluid gun delivery systems19 Mar 2026US 2026/0077318 A1Binks US, LLC
- Systems, methods, and apparatuses for foam air mixing24 Jul 2025US 2025/0235831 A1Graco Minnesota Inc.
- Independent heated hose5 Jun 2025US 2025/0178007 A1Graco Minnesota Inc.
- Spray gun assemblies, methods and systems for applying coating with plural components27 Feb 2025US 2025/0065363 A1The Boeing Company
- Mixer, air cap, and mix chamber assembly for a plural component sprayer18 Jul 2024US 2024/0238740 A1Graco Minnesota Inc.
Most cited
By later US patents
- Purgeable dispensing gun for polyurethane foam and the like137US 4,117,551 A1978
- Two-component foam dispensing apparatus113US 5,344,051 AInsta-Foam Products, Inc. · 1994
- Foam dispensing apparatus99US 4,440,320 A1984
- Frothable polyurethane composition and a cellular foam produced therefrom suitable for use in joints between wallboards83US 4,275,172 AUnion Carbide Corporation · 1981
- Dispensing apparatus77US 4,496,081 AFomo Products, Inc. · 1985