Filter device
US-11945734-B2 · Apr 2, 2024 · US
from animal husbandry
from animal husbandry · 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 | C02F2103/20 |
| Official title | from animal husbandry |
| Display label | from animal husbandry |
| Total patents | 256 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 19 |
| 2016 | 19 |
| 2017 | 13 |
| 2018 | 16 |
| 2019 | 16 |
| 2020 | 33 |
| 2021 | 24 |
| 2022 | 16 |
| 2023 | 36 |
| 2024 | 29 |
| 2025 | 32 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and method for recovering nutrients from a high nitrogenous liquid waste
US-2024083791-A1 · Mar 14, 2024 · US
System for removing ammonia from a freshwater environment
US-10138143-B1 · Nov 27, 2018 · US
Aquarium and non-disruptive filtration system
US-2018279588-A1 · Oct 4, 2018 · US
Contra-rotating multi-layer propeller unit for multi-phase flow
US-2018184626-A1 · Jul 5, 2018 · US
Methods and devices for performing reactions
US-2018186669-A1 · Jul 5, 2018 · US
Method of treating wastewater
US-2018155224-A1 · Jun 7, 2018 · US
Systems and methods for recovering ammonium and phosphorus from liquid effluents
US-9926213-B2 · Mar 27, 2018 · US
Magnetic Metal Oxide Biochar Composite Particles, and Their Use in Recovering Pollutants From Aqueous Solution
US-2018016162-A1 · Jan 18, 2018 · US
Processes and treatment systems for treating high phosphorous containing fluids
US-2017369344-A1 · Dec 28, 2017 · US
Aquaculture system
US-2017362103-A1 · Dec 21, 2017 · US
Filtration system for pet water fountain, and method for water filtration
US-2017362092-A1 · Dec 21, 2017 · US
Converting acrylic fibers to amidoxime-carboxylate containing polymer adsorbents for sequestering uranium and other elements from water
US-2017355621-A1 · Dec 14, 2017 · US
Treatment of waste products with anaerobic digestion
US-9809481-B2 · Nov 7, 2017 · US
Processes and treatment systems for treating high phosphorous containing fluids
US-9790110-B2 · Oct 17, 2017 · US
Production of ammonium sulfate using a vacuum absorption process
US-2017291825-A1 · Oct 12, 2017 · US
Treatment of waste products with anaerobic digestion
US-9771292-B2 · Sep 26, 2017 · US
Wastewater treatment method and device
US-9771287-B2 · Sep 26, 2017 · US
Circulation type aquaculture method and circulation type aquaculture device
US-9756838-B2 · Sep 12, 2017 · US
Systems and methods for reducing ammonia emissions from liquid effluents and for recovering the ammonia
US-9708200-B2 · Jul 18, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F2103/20?
- CPC C02F2103/20 is the Cooperative Patent Classification code for “from animal husbandry.”
- How many patents are filed under CPC C02F2103/20 (from animal husbandry)?
- Our database includes 256 publications tagged with this CPC code.
- Is patent activity under CPC C02F2103/20 growing?
- Publication counts under this code: 29 in 2024 vs 32 in 2025 (latest complete years).