Straight-line sewage treatment system for enhanced treatment of low c/n domestic sewage
US-2024092664-A1 · Mar 21, 2024 · US
Maintenance of water treatment installations
Maintenance of water treatment installations · 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 | C02F2303/14 |
| Official title | Maintenance of water treatment installations |
| Display label | Maintenance of water treatment installations |
| Total patents | 261 |
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 | 17 |
| 2017 | 15 |
| 2018 | 15 |
| 2019 | 21 |
| 2020 | 25 |
| 2021 | 23 |
| 2022 | 39 |
| 2023 | 33 |
| 2024 | 33 |
| 2025 | 26 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for constructing dynamic-like membrane to control membrane fouling of mbr
US-2024067545-A1 · Feb 29, 2024 · US
Method of treating water with an ion exchange bed in a water treatment system
US-10501343-B1 · Dec 10, 2019 · US
Ecological method for denitrification and phosphorus removal in wastewater treatment process
US-10494271-B2 · Dec 3, 2019 · US
Pool cleaning robot having a filtering unit and a sensor
US-2019145119-A1 · May 16, 2019 · US
Portable efficient magnetic solid phase extraction device and extraction method thereof
US-10247642-B2 · Apr 2, 2019 · US
Device for purifying cropland effluents
US-10196288-B2 · Feb 5, 2019 · US
Method and apparatus for recharging a deionization vessel
US-10167206-B2 · Jan 1, 2019 · US
Method for operating filtration apparatus and filtration apparatus
US-2018369723-A1 · Dec 27, 2018 · US
Inhibtion of silica scale using hydrophobically-modified alkylene oxide urethane copolymer
US-10160682-B2 · Dec 25, 2018 · US
Filter assembly for use in a fluid container of a domestic appliance
US-2018344081-A1 · Dec 6, 2018 · US
Hydraulic Control and Treatment Device, Particularly for Hydraulic Apparatuses or Systems
US-2018273399-A1 · Sep 27, 2018 · US
Method for sterilizing water treatment apparatus having plurality of tanks
US-10071402-B2 · Sep 11, 2018 · US
Diffusion pipe and method for cleaning diffusion pipe
US-10071924-B2 · Sep 11, 2018 · US
Subsea equipment cleaning system and method
US-2018251386-A1 · Sep 6, 2018 · US
Targeted cleaning in water system components
US-2018250723-A1 · Sep 6, 2018 · US
CDI type water treatment apparatus
US-10040706-B2 · Aug 7, 2018 · US
Electrode for electrochlorination
US-2018187318-A1 · Jul 5, 2018 · US
Water purifier
US-2018170768-A1 · Jun 21, 2018 · US
Optical fluid treatment device
US-9975788-B2 · May 22, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F2303/14?
- CPC C02F2303/14 is the Cooperative Patent Classification code for “Maintenance of water treatment installations.”
- How many patents are filed under CPC C02F2303/14 (Maintenance of water treatment installations)?
- Our database includes 261 publications tagged with this CPC code.
- Is patent activity under CPC C02F2303/14 growing?
- Publication counts under this code: 33 in 2024 vs 26 in 2025 (latest complete years).