Process for controlling of the treatment of waste fluid generated during a petrochemical process using an incinerator
US-2023002250-A1 · Jan 5, 2023 · US
by freezing
by freezing · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C02F1/22 |
| Official title | by freezing |
| Display label | by freezing |
| Total patents | 103 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 3 |
| 2017 | 10 |
| 2018 | 7 |
| 2019 | 10 |
| 2020 | 7 |
| 2021 | 11 |
| 2022 | 6 |
| 2023 | 15 |
| 2024 | 14 |
| 2025 | 13 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pellet manufacturing apparatus and water treatment method using same
US-2022411290-A1 · Dec 29, 2022 · US
Systems and methods for activating and dewatering sludge using acoustic pressure shock waves
US-2022371922-A1 · Nov 24, 2022 · US
Apparatus and method for continuous separation of solid particles from solid-liquid slurries
US-2022371918-A1 · Nov 24, 2022 · US
Method and system for freezing related separation processes utilizing biogenic ice nucleation proteins
US-11363831-B2 · Jun 21, 2022 · US
Precipitation system and precipitation method
US-2022105467-A1 · Apr 7, 2022 · US
Systems and methods for separating surface materials from a fluid using acoustic pressure shock waves
US-11254589-B2 · Feb 22, 2022 · US
A system and method for the treatment of biogas and wastewater
US-2021371299-A1 · Dec 2, 2021 · US
A system, method and generator for generating nanobubbles or nanodroplets
US-2021362105-A1 · Nov 25, 2021 · US
Systems, Methods, and Compositions for Purifying Water
US-2021355006-A1 · Nov 18, 2021 · US
Zero-liquid discharge (zld) wastewater treatment apparatus and method
US-2021331960-A1 · Oct 28, 2021 · US
Process for purification of waste water from dairy processing
US-11130695-B2 · Sep 28, 2021 · US
Desalting apparatus using solvent and the method thereof
US-2021230020-A1 · Jul 29, 2021 · US
Process and installation for treating a waste lye of a lye scrub
US-2021188673-A1 · Jun 24, 2021 · US
Zero liquid discharge eutectic freeze desalination with intermediate cold liquid
US-2021139346-A1 · May 13, 2021 · US
Apparatus and method for generating dialysate for dialysis
US-11000642-B2 · May 11, 2021 · US
Sterilizer, supply device, and sterilization method
US-10981806-B2 · Apr 20, 2021 · US
Apparatus and Method for Treating Waste Water Containing Ammonium Salts
US-2021017059-A1 · Jan 21, 2021 · US
Method and apparatus for treating wastewater using non-chemical process
US-2020377382-A1 · Dec 3, 2020 · US
Apparatus and method for treating waste water containing ammonium salts
US-10829401-B2 · Nov 10, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F1/22?
- CPC C02F1/22 is the Cooperative Patent Classification code for “by freezing.”
- How many patents are filed under CPC C02F1/22 (by freezing)?
- Our database includes 103 publications tagged with this CPC code.
- Is patent activity under CPC C02F1/22 growing?
- Publication counts under this code: 14 in 2024 vs 13 in 2025 (latest complete years).