Process for manufacturing alkanesulfonic acids
US-12479795-B2 · Nov 25, 2025 · US
Use of fluids
Use of fluids · 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 | B01D1/0041 |
| Official title | {Use of fluids} |
| Display label | Use of fluids |
| Total patents | 53 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 6 |
| 2018 | 5 |
| 2019 | 8 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 5 |
| 2023 | 7 |
| 2024 | 6 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Special solar energy water jacket heating furnace in vacuum mode for oil field and method of heating crude oil
US-12472445-B2 · Nov 18, 2025 · US
Methods and apparatus for heating a liquid
US-12449084-B2 · Oct 21, 2025 · US
Reducing energy consumption in MEG reclamation
US-12378177-B2 · Aug 5, 2025 · US
Systems and methods for vaporizing hydrocarbon feeds
US-2024424424-A1 · Dec 26, 2024 · US
Multiple-stage heating for a flashline heater
US-12173094-B2 · Dec 24, 2024 · US
Methods and apparatus for heating a liquid
US-2024301980-A1 · Sep 12, 2024 · US
Device and method for on-line continuous recovery of excess nitric acid in nitration reaction
US-2024246820-A1 · Jul 25, 2024 · US
High pressure strippers for use in urea plants
US-11992789-B2 · May 28, 2024 · US
Methods and apparatus for heating a liquid
US-11988316-B2 · May 21, 2024 · US
Special solar energy water jacket heating furnace in vacuum mode for oil field and method of heating crude oil
US-2023398465-A1 · Dec 14, 2023 · US
Multiple-Stage Heating for a Flashline Heater
US-2023391895-A1 · Dec 7, 2023 · US
Multiple-stage heating for a flashline heater
US-11814453-B2 · Nov 14, 2023 · US
System and method to partially vaporize a process stream by mixing the stream with a heating medium
US-11731061-B2 · Aug 22, 2023 · US
Methods and apparatus for heating a liquid
US-2023091275-A1 · Mar 23, 2023 · US
Resonant thermal oscillator to improve output of a thermo-fluidic system
US-2023067663-A1 · Mar 2, 2023 · US
Reducing energy consumption in meg reclamation
US-2023002298-A1 · Jan 5, 2023 · US
Multiple-Stage Heating for a Flashline Heater
US-2022348693-A1 · Nov 3, 2022 · US
Process for manufacturing alkanesulfonic acids
US-2022348537-A1 · Nov 3, 2022 · US
Urea production with multiple evaporators
US-11332437-B2 · May 17, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D1/0041?
- CPC B01D1/0041 is the Cooperative Patent Classification code for “Use of fluids.”
- How many patents are filed under CPC B01D1/0041 (Use of fluids)?
- Our database includes 53 publications tagged with this CPC code.
- Is patent activity under CPC B01D1/0041 growing?
- Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).