B29B 7/246
In mixers having more than one rotor and a casing closely surrounding
Official title: {in mixers having more than one rotor and a casing closely surrounding the rotors, e.g. with feeding plungers}
B29B7/246 (In mixers having more than one rotor and a casing closely surrounding) appears on 47 US grants and 32 published applications in this corpus.
Search patents in B29B- Granted patents
- 47
- Published applications
- 32
- Assignees
- 30
- Inventors
- 87
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 5 |
| 2009 | 3 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 4 |
| 2015 | 4 | 2 |
| 2016 | 1 | 5 |
| 2017 | 4 | 0 |
| 2018 | 2 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Methods for preparing elastomer composites with mixer ventilation16 Apr 2026US 2026/0103572 A1Cabot Corporation
- Rubber composition manufacturing method, tire manufacturing method, and rubber composition manufacturing apparatus29 Jun 2023US 2023/0202069 A1Toyo Tire Corporation
- Rubber extruding device and rubber extruding method27 Jun 2019US 2019/0193036 A1Sumitomo Rubber Industries, Ltd.
Most cited
By later US patents
- Dynamic mixer control in plastics and rubber processing37US 5,865,535 AM.A.HannaRubberCompounding, a division of M.A. Hanna Company · 1999
- Control for batch mixers33US 4,818,113 AFarrel Bridge Limited · 1989
- Internal mixer25US 5,061,078 ASuzuka Engineering Co., Ltd. · 1991
- Data acquisition system24US 3,999,046 A1976
- Elastomer processing method22US 3,951,389 AThe B. F. Goodrich Company · 1976