B01F 21/00
Dissolving
Official title: Dissolving (separating by dissolving B01D; dissolving to effect cooling F25D5/00)
B01F21/00 (Dissolving) appears on 1,054 US grants and 817 published applications in this corpus.
Search patents in B01F- Granted patents
- 1,054
- Published applications
- 817
- Assignees
- 591
- Inventors
- 2,057
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 14 | 0 |
| 1978 | 10 | 0 |
| 1979 | 3 | 0 |
| 1980 | 10 | 0 |
| 1981 | 14 | 0 |
| 1982 | 12 | 0 |
| 1983 | 10 | 0 |
| 1984 | 10 | 0 |
| 1985 | 11 | 0 |
| 1986 | 9 | 0 |
| 1987 | 12 | 0 |
| 1988 | 21 | 0 |
| 1989 | 23 | 0 |
| 1990 | 14 | 0 |
| 1991 | 18 | 0 |
| 1992 | 17 | 0 |
| 1993 | 25 | 0 |
| 1994 | 20 | 0 |
| 1995 | 31 | 0 |
| 1996 | 23 | 0 |
| 1997 | 20 | 0 |
| 1998 | 31 | 0 |
| 1999 | 23 | 0 |
| 2000 | 12 | 0 |
| 2001 | 38 | 6 |
| 2002 | 30 | 28 |
| 2003 | 24 | 24 |
| 2004 | 21 | 35 |
| 2005 | 22 | 37 |
| 2006 | 18 | 23 |
| 2007 | 11 | 21 |
| 2008 | 11 | 21 |
| 2009 | 13 | 29 |
| 2010 | 11 | 25 |
| 2011 | 22 | 30 |
| 2012 | 15 | 26 |
| 2013 | 29 | 30 |
| 2014 | 17 | 41 |
| 2015 | 30 | 37 |
| 2016 | 31 | 32 |
| 2017 | 31 | 36 |
| 2018 | 35 | 45 |
| 2019 | 41 | 63 |
| 2020 | 42 | 35 |
| 2021 | 35 | 41 |
| 2022 | 33 | 37 |
| 2023 | 22 | 30 |
| 2024 | 27 | 43 |
| 2025 | 25 | 14 |
| 2026 | 16 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01F 21/20Dissolving: using flow mixing748
- B01F 21/30Workflow diagrams or layout of plants139
- B01F 21/10Dissolving: using driven stirrers99
- B01F 21/40Dissolving: characterised by the state of the material being dissolved72
- B01F 21/50Elements used for separating or keeping undissolved material in the mixer67
- B01F 21/15Comprising constructions for blocking or redispersing undissolved solids66
- B01F 21/02Methods63
Recent patents
- Solubilizer for various mixtures15 Sep 2026US 12,734,489 B2
- Dispenser25 Aug 2026US 12,714,955 B2King Technology, Inc.
- Resistivity adjustment device and resistivity adjustment method11 Aug 2026US 12,702,961 B2DIC Corporation
- Beverage ingredient accessory device28 Jul 2026US 12,691,424 B2
- Jet propulsion dry powder dissolution unit that uses a submersible actuator14 Jul 2026US 12,678,744 B2
- Mixer for dissolving tablets24 Sep 2026US 2026/0284616 A1
- Systems and methods for estimation of workflow execution time24 Sep 2026US 2026/0289460 A1The Toronto-Dominion Bank
- Acid mixing system17 Sep 2026US 2026/0273148 A1Isopure, Corp.
- Assembly providing gravity fed or pump fed curvilinear motion for polymer release and mixing, including centrally mounting multi-outlet nozzle, overflow rim discharge system, and method for passive stormwater treatment using controlled rotational flow17 Sep 2026US 2026/0274719 A1
- Drug mixing system30 Jul 2026US 2026/0216002 A1Aspiair GmbH
Most cited
By later US patents
- Capillary flow device951US 4,963,498 ABiotrack, Inc. · 1990
- Capillary flow device522US 4,756,884 ABiotrack, Inc. · 1988
- Capillary flow device321US 5,164,598 ABiotrack, Inc. · 1992
- Capillary flow device316US 5,300,779 ABiotrack, Inc. · 1994
- Reaction system element and method for performing prothrombin time assay296US 4,849,340 ACardiovascular Diagnostics, Inc. · 1989