B01F 25/421
By moving the components in a convoluted or labyrinthine path
Official title: by moving the components in a convoluted or labyrinthine path (B01F25/433 takes precedence)
B01F25/421 (By moving the components in a convoluted or labyrinthine path) appears on 403 US grants and 445 published applications in this corpus.
Search patents in B01F- Granted patents
- 403
- Published applications
- 445
- Assignees
- 308
- Inventors
- 986
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 2 |
| 2002 | 10 | 8 |
| 2003 | 9 | 17 |
| 2004 | 6 | 10 |
| 2005 | 8 | 5 |
| 2006 | 8 | 17 |
| 2007 | 6 | 9 |
| 2008 | 5 | 14 |
| 2009 | 7 | 10 |
| 2010 | 12 | 20 |
| 2011 | 10 | 5 |
| 2012 | 8 | 21 |
| 2013 | 10 | 19 |
| 2014 | 9 | 17 |
| 2015 | 14 | 31 |
| 2016 | 22 | 23 |
| 2017 | 32 | 31 |
| 2018 | 18 | 19 |
| 2019 | 24 | 33 |
| 2020 | 22 | 34 |
| 2021 | 22 | 18 |
| 2022 | 20 | 32 |
| 2023 | 23 | 18 |
| 2024 | 17 | 10 |
| 2025 | 19 | 18 |
| 2026 | 9 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Flange members and reservoirs incorporating the same18 Aug 2026US 12,708,883 B2Meissner Filtration Products, Inc.
- Liquid control apparatus and related methods18 Aug 2026US 12,709,877 B2Delta Faucet Company
- Static mixer resistant to heat, corrosion and dissolution14 Jul 2026US 12,678,751 B2Affival
- Fine bubble generating nozzle28 Apr 2026US 12,611,637 B2Rinnai Corporation
- Method and apparatus for supplying improved gas flow to a processing volume of a processing chamber7 Apr 2026US 12,595,560 B2APPLIED Materials.Inc.
- Uv disinfector for optically dense fluids24 Sep 2026US 2026/0283173 A1Ultra Biotecs Limited
- Ultrafine bubble water generator and structure body thereof4 Jun 2026US 2026/0151745 A1Guangdong Fuji Keiki Science &Technology Co.,Ltd
- Exhaust treatment device16 Apr 2026US 2026/0102746 A1Donaldson Company, Inc.
- Continuous flow microfluidic system and method for producing self-assembled substance particles19 Mar 2026US 2026/0077324 A1National University Corporation Hokkaido University
- fluid mixing device4 Dec 2025US 2025/0367616 A1
Most cited
By later US patents
- Compositions, systems, and methods for arresting or controlling bleeding or fluid leakage in body tissue1,214US 6,458,147 B1NeoMend, Inc. · 2002
- Apparatus and method of purifying water with ozone370US 6,673,248 B2S C Trade & Consult AB · 2004
- Disposable cartridge and method for an assay of a biological sample351US 5,912,134 ABiometric Imaging, Inc. · 1999
- Microcomponent chemical process sheet architecture299US 5,811,062 ABattelle Memorial Institute · 1998
- Integrated chemical processing apparatus and processes for the preparation thereof272US 5,534,328 AE. I. Du Pont de Nemours and Company · 1996