Water purification system
US-2019382297-A1 · Dec 19, 2019 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C02F9/005 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 132 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 9 |
| 2017 | 13 |
| 2018 | 14 |
| 2019 | 30 |
| 2020 | 19 |
| 2021 | 22 |
| 2022 | 10 |
| 2023 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hospital ozone faucet
US-10501356-B2 · Dec 10, 2019 · US
On-demand system for drawing and purifying well water
US-10494284-B2 · Dec 3, 2019 · US
System and method for the treatment of wastewater
US-2019330080-A1 · Oct 31, 2019 · US
Water flow control device for swimming training
US-10449434-B2 · Oct 22, 2019 · US
Modular filtration platform
US-2019282938-A1 · Sep 19, 2019 · US
Liquid dispenser
US-2019256372-A1 · Aug 22, 2019 · US
Water filtration system
US-10370269-B2 · Aug 6, 2019 · US
Systems and methods for treating oilfield wastewater
US-10364173-B2 · Jul 30, 2019 · US
Water purifier
US-10322943-B2 · Jun 18, 2019 · US
Continuous on-board processing of seafood after fishing on the sea
US-10231465-B2 · Mar 19, 2019 · US
Mobile rustproofing washing system
US-2019055037-A1 · Feb 21, 2019 · US
Fluid purification system
US-2019022293-A1 · Jan 24, 2019 · US
Fluid purification system
US-10105476-B2 · Oct 23, 2018 · US
Electronic sensor having electrical contacts for direct monitoring of filter media within a filtration system
US-2018229161-A1 · Aug 16, 2018 · US
Water filtration system with recirculation to reduce total dissolved solids creep effect
US-2018162761-A1 · Jun 14, 2018 · US
Sanitizing filter system and method for a residential water filtering system
US-2018147506-A1 · May 31, 2018 · US
Hospital ozone faucet
US-2018141844-A1 · May 24, 2018 · US
Dialysis system
US-2018126056-A1 · May 10, 2018 · US
Cold water generating apparatus and water purifier having the same
US-2018099854-A1 · Apr 12, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F9/005?
- CPC C02F9/005 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C02F9/005 (Chemistry & Metallurgy)?
- Our database includes 132 publications tagged with this CPC code.
- Is patent activity under CPC C02F9/005 growing?
- Publication counts under this code: 10 in 2022 vs 4 in 2023 (latest complete years).