C02F 3/322
Use of algae
Official title: {use of algae}
C02F3/322 (Use of algae) appears on 136 US grants and 243 published applications in this corpus.
Search patents in C02F- Granted patents
- 136
- Published applications
- 243
- Assignees
- 149
- Inventors
- 533
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 5 |
| 2011 | 2 | 5 |
| 2012 | 5 | 7 |
| 2013 | 1 | 8 |
| 2014 | 4 | 15 |
| 2015 | 6 | 17 |
| 2016 | 8 | 20 |
| 2017 | 12 | 14 |
| 2018 | 8 | 15 |
| 2019 | 7 | 12 |
| 2020 | 13 | 20 |
| 2021 | 13 | 25 |
| 2022 | 11 | 7 |
| 2023 | 16 | 20 |
| 2024 | 13 | 23 |
| 2025 | 5 | 10 |
| 2026 | 10 | 15 |
By publication year. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vacuum air lift systems including a fluidic oscillator28 Jul 2026US 12,692,177 B2Searen, LLC
- System and method for cultivation of oxygenic photogranule16 Jun 2026US 12,655,049 B2University of Massachusetts
- MABR-based method for treating rare earth mine tailwater12 May 2026US 12,623,940 B2Guangdong University of Technology
- Method for producing biomass from a microalgae5 May 2026US 12,617,702 B2Universidad de Las Palmas de Gran Canaria
- Chaetomorpha reactor, waterfall algae scrubber, and bubble upflow algae scrubber methods and devices21 Apr 2026US 12,604,819 B2
- Chaetomorpha reactor, waterfall algae scrubber, and bubble upflow algae scrubber methods and devices - hybrid chaeto reactor algal turf scrubber20 Aug 2026US 2026/0240097 A1
- Onsite sustainable sanitation devices for water and nutrient recycling and methods of use thereof20 Aug 2026US 2026/0242264 A1
- Plant-based metal recovery platform20 Aug 2026US 2026/0242889 A1PIMIRS Technologies, LLC
- Systems and methods for water treatment16 Jul 2026US 2026/0200775 A1National University Corporation Kanazawa University
- System for reducing and utilizing carbon dioxide generated from sewage treatment plant2 Jul 2026US 2026/0182512 A1THEZONE Environment Technology Consultant
Most cited
By later US patents
- System for algae-based treatment of water39US 9,315,403 B1Eldorado Biofuels, LLC · 2016
- Method and system for removal of contaminants from aqueous solution17US 7,172,691 B22007
- Methods and systems for large scale carbon dioxide utilization from Lake Kivu via a CO2 industrial utilization hub integrated with electric power production and optional cryo-energy storage15US 10,577,248 B2Harper Biotech LLC · 2020
- Advanced biologic water treatment using algae11US 8,101,080 B2AlgEvolve, LLC · 2012
- Wastewater photo biomass/algae treatment method9US 8,097,168 B2Earth Renaissance Technologies, LLC · 2012