B01F 25/4416
The opposed surfaces being provided with grooves
Official title: {the opposed surfaces being provided with grooves}
B01F25/4416 (The opposed surfaces being provided with grooves) appears on 37 US grants and 40 published applications in this corpus.
Search patents in B01F- Granted patents
- 37
- Published applications
- 40
- Assignees
- 35
- Inventors
- 85
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 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 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 3 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 2 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 3 |
| 2015 | 0 | 2 |
| 2016 | 2 | 2 |
| 2017 | 1 | 3 |
| 2018 | 2 | 2 |
| 2019 | 3 | 5 |
| 2020 | 2 | 1 |
| 2021 | 2 | 3 |
| 2022 | 4 | 2 |
| 2023 | 0 | 3 |
| 2024 | 4 | 2 |
| 2025 | 1 | 4 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
- B01F 25/44163Helical grooves formed on opposed surfaces22
- B01F 25/44167The grooves being formed on the outer surface of the cylindrical or17
- B01F 25/44161Axial grooves formed on opposed surfaces8
- B01F 25/44164Crossing sets of grooves forming a labyrinth formed on opposed surfaces5
- B01F 25/44162Circumferential grooves formed on opposed surfaces3
- B01F 25/44166Spiral grooves formed on opposed surfaces3
- B01F 25/44168The grooves being formed on the inner surface of the cylindrical or3
- B01F 25/44165Radial grooves formed on opposed surfaces1
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Most cited
By later US patents
- Syringe assembly and method for lyophilizing and reconstituting injectable medication126US 5,489,266 ABecton, Dickinson and Company · 1996
- Centrifugal photometric analyzer51US 4,279,862 A1981
- Mixer for liquid chromatograph24US 6,048,496 AGI Sciences Incorporated · 2000
- Vaporizer and various devices using the same and an associated vaporizing method15US 7,673,856 B2Kabushiki Kaisha Watanabe Shoko · 2010
- Mixing and dispensing device11US 6,213,633 B1SmithKline Beecham Consumer Healthcare GmbH · 2001