Patents
US 12655049 B2: System and method for cultivation of oxygenic photogranule
- Granted
- 2026-06-16
- Filed
- 2023-05-26 application 18324328
- Type
- Utility · 21 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method comprises flowing a mixture comprising a water-based reaction medium and at least one microalgae into a reaction vessel, wherein the reaction medium comprises a nutrient material that is consumable by a live microalgae, bacterium, or protozoa present in the reaction medium, incubating the mixture under at least intermittent illumination with a specified luminous flux such that the microalgae forms a supporting matrix that incorporates the live microalgae, bacterium, or protozoa into biologically-active bioaggregate granules, selecting out a first specified portion of the biologically-active bioaggregate granules that are smaller than a first specified size or below a first specified weight or selecting out a second specified portion of the biologically-active bioaggregate granules that are larger than a second specified size or over a second specified weight and removing the first and/or the second specified portions of the biologically-active bioaggregate granules in an effluent stream.
Source: PTBLXML, file of 2026-06-16 (ipgb20260616.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| University of Massachusetts 1,152 patents | US company or organization | Westborough, MA | UNIVERSITY OF MASSACHUSETTS Federal lobbying client EXACT high confidence: identical full name and state | PTBLXML, file of 2026-06-16 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Chul Park | Amherst, MA | 8 | PTBLXML, file of 2026-06-16 | |
| Joseph G. Gikonyo | Belchertown, MA | PTBLXML, file of 2026-06-16 | ||
| Ahmed S. Abouhend | Amherst, MA | PTBLXML, file of 2026-06-16 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C02F | Treatment of water, waste water, sewage, or sludge | C02F3/322 | PTBLXML, file of 2026-06-16 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2023-06-21 | Assignment Assignment of assignor's interest | PARK, CHUL signed 2023-06-19 GIKONYO, JOSEPH G. signed 2023-06-19 ABOUHEND, AHMED S. signed 2023-06-19 | UNIVERSITY OF MASSACHUSETTS BOSTON, MA | 64018/956 | PASDL, file of 2026-10-15 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.