Patents
US 11725880 B2: Hygroscopic cooling tower for waste water disposal
- Granted
- 2023-08-15
- Filed
- 2020-08-11 application 16989994
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
In various embodiments, the present invention relates to heat dissipation systems including a hygroscopic working fluid integrating waste water as makeup water. The present invention also relates to methods of using the same. The present invention also relates to hygroscopic cooling systems adapted to dispose of waste water by combining the waste water with a hygroscopic working fluid, precipitating impurities and evaporating the remaining water.
Source: PVGPATDIS, file of 2026-04-10 (ipg230815.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Energy & Environmental Research Center 68 patents | US company or organization | Portland, ND | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Christopher Lee Martin | Portland, ND | 17 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F28B | Steam or vapour condensers | F28B9/06 | PVGPATDIS, file of 2026-04-10 |
| F01K | Steam engine plants; steam accumulators; engine plants not otherwise provided for; engines using special working fluids or cycles | F01K9/003 | PVGPATDIS, file of 2026-04-10 |
| F28C | Heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media come into direct contact without chemical interaction | F28C1/02 | PVGPATDIS, file of 2026-04-10 |
| F28F | Details of heat-exchange and heat-transfer apparatus, of general application | F28F23/02 | PVGPATDIS, file of 2026-04-10 |
| F24F | Air-conditioning; air-humidification; ventilation; use of air currents for screening | F24F3/1417 | PVGPATDIS, file of 2026-04-10 |
| Y02B | Climate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications | Y02B30/54 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2020-11-11 | Assignment Assignment of assignor's interest | MARTIN, CHRISTOPHER LEE signed 2020-03-04 | ENERGY AND ENVIRONMENTAL RESEARCH CENTER FOUNDATION GRAND FORKS, ND | 54337/153 | ECORSEXC, file of 2026-09-25 |
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.