Smart algae shades for water evaporation reduction from algal open ponds
US-2025270491-A1 · Aug 28, 2025 · US
Open ponds; Greenhouse type or underground installations
Open ponds; Greenhouse type or underground 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 | C12M23/18 |
| Official title | {Open ponds; Greenhouse type or underground installations} |
| Display label | Open ponds; Greenhouse type or underground installations |
| Total patents | 64 |
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 | 6 |
| 2016 | 2 |
| 2017 | 5 |
| 2018 | 2 |
| 2019 | 5 |
| 2020 | 7 |
| 2021 | 15 |
| 2022 | 6 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 3 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and system for membrane carbonation
US-2024384216-A1 · Nov 21, 2024 · US
Systems and methods comprising open algae cultivation liners
US-12077738-B2 · Sep 3, 2024 · US
Culture systems and methods of using same
US-12024695-B2 · Jul 2, 2024 · US
Method and system for membrane carbonation
US-11970683-B2 · Apr 30, 2024 · US
System, and a method for Algal Cultivation
US-2024060033-A1 · Feb 22, 2024 · US
Lagoon cover
US-2024034972-A1 · Feb 1, 2024 · US
Using Water Ponds for Capturing Dioxide and Growing Algae
US-2023321601-A1 · Oct 12, 2023 · US
Algal cultivation system and a process for biomass production
US-11773360-B2 · Oct 3, 2023 · US
Bioreactor with integrated flue gas distribution
US-11718818-B2 · Aug 8, 2023 · US
Pivot arm systems for mixing in bioreactors
US-11692165-B2 · Jul 4, 2023 · US
Cell culture device
US-2023174910-A1 · Jun 8, 2023 · US
Culturing method and culturing device
US-2022312705-A1 · Oct 6, 2022 · US
Culture systems and methods of using same
US-2022259533-A1 · Aug 18, 2022 · US
Culture systems and methods of using same
US-11339360-B2 · May 24, 2022 · US
Integrated bioreactor systems
US-2022135919-A1 · May 5, 2022 · US
Continuous microalgae culture module and method of culturing microalgae containing macular pigment
US-11286453-B2 · Mar 29, 2022 · US
Optical device for in-line and real-time monitoring of microorganisms
US-11261474-B2 · Mar 1, 2022 · US
Micro-Fluidic Particle Concentrator and Filtering Device
US-2021395659-A1 · Dec 23, 2021 · US
Systems and methods comprising open algae cultivation liners
US-2021371787-A1 · Dec 2, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C12M23/18?
- CPC C12M23/18 is the Cooperative Patent Classification code for “Open ponds; Greenhouse type or underground installations.”
- How many patents are filed under CPC C12M23/18 (Open ponds; Greenhouse type or underground installations)?
- Our database includes 64 publications tagged with this CPC code.
- Is patent activity under CPC C12M23/18 growing?
- Publication counts under this code: 6 in 2024 vs 3 in 2025 (latest complete years).