Solid chemistry dispensing system and method of use
US-2026041800-A1 · Feb 12, 2026 · US
Methods
Methods · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01F21/02 |
| Official title | {Methods} |
| Display label | Methods |
| Total patents | 58 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 8 |
| 2018 | 4 |
| 2019 | 7 |
| 2020 | 10 |
| 2021 | 6 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 6 |
| 2025 | 4 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Dip Tube for Liquid Spray Pump Dispensing Apparatus and Method of Manufacture
US-2026014579-A1 · Jan 15, 2026 · US
Printing fluid mixing
US-2026003307-A1 · Jan 1, 2026 · US
Method for preparing bioprocess solution and mixing container
US-2026002119-A1 · Jan 1, 2026 · US
Device and method for continuous mixing of solid drag reducer
US-12331601-B2 · Jun 17, 2025 · US
Method, facility and tank for the manufacture of a liquid acid concentrate used for hemodialysis machines
US-12290619-B2 · May 6, 2025 · US
Systems with improved hydrogel formation times
US-2025128220-A1 · Apr 24, 2025 · US
Methods and systems for co-feeding waste plastics into a refinery
US-12195675-B2 · Jan 14, 2025 · US
Methods and systems for co-feeding waste plastics into a refinery
US-2024294833-A1 · Sep 5, 2024 · US
Method, Facility And Tank For The Manufacture Of A Liquid Acid Concentrate Used For Hemodialysis Machines
US-2024269360-A1 · Aug 15, 2024 · US
Method, facility and tank for the manufacture of a liquid acid concentrate used for hemodialysis machines
US-11986581-B2 · May 21, 2024 · US
Methods and systems for co-feeding waste plastics into a refinery
US-11939532-B2 · Mar 26, 2024 · US
Gas solution supply apparatus
US-2024075410-A1 · Mar 7, 2024 · US
Accelerated mixing and reaction kinetics using an elastic instability
US-2024024829-A1 · Jan 25, 2024 · US
Method of producing heated ozone water, heated ozone water, and semiconductor wafer-cleaning liquid
US-11817309-B2 · Nov 14, 2023 · US
Method and system for preparing a solution
US-11747240-B2 · Sep 5, 2023 · US
Methods and systems for co-feeding waste plastics into a refinery
US-2023235233-A1 · Jul 27, 2023 · US
Systems and methods for gas disposal
US-11504676-B2 · Nov 22, 2022 · US
System for continuous make-down of powder material
US-11439962-B2 · Sep 13, 2022 · US
Method for producing ozone water
US-11295947-B2 · Apr 5, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01F21/02?
- CPC B01F21/02 is the Cooperative Patent Classification code for “Methods.”
- How many patents are filed under CPC B01F21/02 (Methods)?
- Our database includes 58 publications tagged with this CPC code.
- Is patent activity under CPC B01F21/02 growing?
- Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).