Apparatus for producing reforming liquid and method for producing reforming liquid
US-10875790-B2 · Dec 29, 2020 · US
Spiral, helicoidal, radial
Spiral, helicoidal, radial · 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 | C02F2301/026 |
| Official title | Spiral, helicoidal, radial |
| Display label | Spiral, helicoidal, radial |
| Total patents | 139 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 11 |
| 2017 | 6 |
| 2018 | 10 |
| 2019 | 11 |
| 2020 | 19 |
| 2021 | 20 |
| 2022 | 12 |
| 2023 | 12 |
| 2024 | 15 |
| 2025 | 11 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Photocatalytic water treatment system
US-2020361801-A1 · Nov 19, 2020 · US
Light activated water treatment system
US-2020361802-A1 · Nov 19, 2020 · US
Ultraviolet water disinfection system
US-10787375-B2 · Sep 29, 2020 · US
Water treatment system and methods thereof
US-10752527-B2 · Aug 25, 2020 · US
Water treatment system and methods thereof
US-2020247698-A1 · Aug 6, 2020 · US
Liquid treatment apparatus
US-10723637-B2 · Jul 28, 2020 · US
Disinfection apparatus having submersible uv light devices
US-2020230281-A1 · Jul 23, 2020 · US
Water purification system using ultraviolet LEDs
US-10676375-B2 · Jun 9, 2020 · US
Liquid processing apparatus
US-10654730-B2 · May 19, 2020 · US
Sanitizing wastewater
US-2020079671-A1 · Mar 12, 2020 · US
Filters principally for use in connection with swimming pools and spas
US-2019388807-A1 · Dec 26, 2019 · US
Helical Bed Biofilm Reactor for Wastewater Treatment
US-2019375661-A1 · Dec 12, 2019 · US
Water activator and cooling water circulation system equipped with same
US-2019352191-A1 · Nov 21, 2019 · US
Liquid processing apparatus
US-2019352199-A1 · Nov 21, 2019 · US
Liquid processing apparatus
US-2019292076-A1 · Sep 26, 2019 · US
Liquid treatment apparatus
US-2019256385-A1 · Aug 22, 2019 · US
Liquid purification apparatus and method
US-10329170-B2 · Jun 25, 2019 · US
Disinfection apparatus having submersible uv light devices
US-2019142987-A1 · May 16, 2019 · US
Ultraviolet Water Disinfection System
US-2019135659-A1 · May 9, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F2301/026?
- CPC C02F2301/026 is the Cooperative Patent Classification code for “Spiral, helicoidal, radial.”
- How many patents are filed under CPC C02F2301/026 (Spiral, helicoidal, radial)?
- Our database includes 139 publications tagged with this CPC code.
- Is patent activity under CPC C02F2301/026 growing?
- Publication counts under this code: 15 in 2024 vs 11 in 2025 (latest complete years).