B01F 27/84
With two or more stirrers rotating at different speeds or in opposite
Official title: with two or more stirrers rotating at different speeds or in opposite directions about the same axis
B01F27/84 (With two or more stirrers rotating at different speeds or in opposite) appears on 98 US grants and 84 published applications in this corpus.
Search patents in B01F- Granted patents
- 98
- Published applications
- 84
- Assignees
- 88
- Inventors
- 258
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 7 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 2 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 2 |
| 2011 | 2 | 2 |
| 2012 | 2 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 4 |
| 2015 | 4 | 3 |
| 2016 | 2 | 3 |
| 2017 | 1 | 4 |
| 2018 | 5 | 8 |
| 2019 | 5 | 5 |
| 2020 | 4 | 3 |
| 2021 | 6 | 7 |
| 2022 | 6 | 8 |
| 2023 | 4 | 8 |
| 2024 | 5 | 8 |
| 2025 | 4 | 5 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- A valve, a mixing unit and a method for mixing a liquid food product with a powder food product4 Sep 2025US 2025/0276298 A1Tetra Laval Holdings & Finance S. A.
- Organic matter processing apparatus and methods of use thereof21 Aug 2025US 2025/0262625 A1Chewie Labs LLC
- Carbonation treatment device and carbonation treatment method26 Jun 2025US 2025/0205661 A1O.C.O. Technology Ltd
- Stirring device and stirring method15 May 2025US 2025/0153119 A1Sumitomo Heavy Industries Process Equipment Co., Ltd.
Most cited
By later US patents
- Bowl scraper for commercial or industrial size food mixers56US 5,556,201 AMiddleby Marshall Inc. · 1996
- Ice cream making apparatus and an agitator for the same43US 6,250,794 B12001
- Process for preparation of composite materials containing nonmetallic particles in a metallic matrix40US 4,865,806 ADural Aluminum Composites Corp. · 1989
- Continuous mixing apparatus with upper and lower disk impellers each having scrapers35US 6,431,742 B1Dow Corning Toray Silicone Co., Ltd. · 2002
- Pot stirring device with s-shaped stirring blades33US 6,068,395 A2000