B28C 5/0881
Having a stator-rotor system with intermeshing teeth or cages
Official title: {having a stator-rotor system with intermeshing teeth or cages}
B28C5/0881 (Having a stator-rotor system with intermeshing teeth or cages) appears on 25 US grants and 23 published applications in this corpus.
Search patents in B28C- Granted patents
- 25
- Published applications
- 23
- Assignees
- 9
- Inventors
- 62
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 3 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 1 |
| 2017 | 2 | 2 |
| 2018 | 3 | 2 |
| 2019 | 0 | 0 |
| 2020 | 3 | 1 |
| 2021 | 0 | 2 |
| 2022 | 2 | 1 |
| 2023 | 1 | 2 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Slurry delivery conduit of mixer and slurry delivery method31 Jan 2023US 11,565,439 B2Yoshino Gypsum Co., Ltd.
- Gypsum slurry mixer output canister9 Aug 2022US 11,407,145 B2United States Gypsum Company
- Mixer rotor pin with hole31 May 2022US 11,344,854 B2Knauf Gips KG
- Calcined gypsum slurry mixing apparatus having variably positionable lump ring and method for manufacturing gypsum product using same21 Jul 2020US 10,717,059 B2United States Gypsum Company
- Pretreatment mixing and stirring device, gypsum slurry manufacturing apparatus, building board manufacturing apparatus, pretreatment calcined gypsum manufacturing method, gypsum slurry manufacturing method, building board manufacturing method28 Aug 2025US 2025/0269558 A1Yoshino Gypsum Co., Ltd.
- Mixing and stirring apparatus, gypsum board manufacturing apparatus, and gypsum board manufacturing method2 Jan 2025US 2025/0001373 A1Yoshino Gypsum Co., Ltd.
- Gypsum slurry mixer process for enhanced wallboard strength21 Dec 2023US 2023/0406781 A1United States Gypsum Company
- Wallboard slurry mixer configured for reducing water:stucco ratio21 Sep 2023US 2023/0294326 A1United States Gypsum Company
- Pretreatment mixing and stirring device, gypsum slurry manufacturing apparatus, building board manufacturing apparatus, pretreatment calcined gypsum manufacturing method, gypsum slurry manufacturing method, building board manufacturing method16 Jun 2022US 2022/0184848 A1Yoshino Gypsum Co., Ltd.
Most cited
By later US patents
- Mixer for mixing multi-phase fluids41US 5,575,559 AGoulds Pumps, Incorporated · 1996
- Apparatus for mixing calcined gypsum and its method of operation41US 6,059,444 AUnited States Gypsum Company · 2000
- Mixer and mixing method for producing gypsum slurry26US 7,690,834 B2Yoshino Gypsum Co., Ltd. · 2010
- Coaxial pump mixer19US 4,176,972 ANational Gypsum Company · 1979
- Mixer19US 6,193,408 B1Yoshino Gypsum Co., Ltd. · 2001