B29B 7/402
Using a rotor-stator system with intermeshing elements
Official title: {using a rotor-stator system with intermeshing elements, e.g. teeth (B29B7/408, B29B7/404 take precedence)}
B29B7/402 (Using a rotor-stator system with intermeshing elements) appears on 66 US grants and 36 published applications in this corpus.
Search patents in B29B- Granted patents
- 66
- Published applications
- 36
- Assignees
- 56
- Inventors
- 156
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 2 | 2 |
| 2014 | 0 | 0 |
| 2015 | 0 | 5 |
| 2016 | 3 | 2 |
| 2017 | 4 | 1 |
| 2018 | 2 | 1 |
| 2019 | 0 | 2 |
| 2020 | 0 | 1 |
| 2021 | 3 | 3 |
| 2022 | 1 | 1 |
| 2023 | 1 | 3 |
| 2024 | 0 | 0 |
| 2025 | 3 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydration systems and methods17 Mar 2026US 12,576,556 B2Schlumberger Technology Corporation
- Liquid polymer dosing and mixing chamber and pump28 Oct 2025US 12,453,946 B2
- Temperature control for a rotary head extruder10 Jun 2025US 12,324,454 B2Frito-Lay North America, Inc.
- Liquid polymer or chemical activation system using a submersible actuator25 Feb 2025US 12,233,388 B2
- Shaping material supply device and three-dimensional shaping apparatus17 Oct 2023US 11,787,111 B2Seiko Epson Corporation
- Modular Annular Dosing and Mixing Reactor System30 Jul 2026US 2026/0216687 A1
- Extruder-mixer5 Feb 2026US 2026/0034524 A1BB Engineering GmbH
- Dynamic mixing device for a fluid, extruder having a mixing device of this kind, and method for operating a dynamic mixing device for a fluid25 Sep 2025US 2025/0296272 A1BB Engineering GmbH
- Liquid Polymer Dosing and Mixing Chamber with an External Actuator5 Jun 2025US 2025/0177937 A1
- Temperature Control for a Rotary Head Extruder22 Jun 2023US 2023/0189867 A1Frito-Lay North America, Inc.
Most cited
By later US patents
- Mixing apparatus53US 4,128,342 ABarmag Barmer Maschinenfabrik AG · 1978
- Method for continuous mixing of foam materials52US 3,938,783 AThe Upjohn Company · 1976
- Process and apparatus for producing an optically uniform, transparent coating, layer, film or sheet from a mixture of components43US 4,590,030 ASaint-Gobain Vitrage · 1986
- Continuous two-liquid type mixer43US 4,976,547 AKanegafuchi Kagaku Kogyo Kabushiki Kaisha · 1990
- Two liquid type mixer43US 5,450,368 AThree Bond Co., Ltd. · 1995