Patents
US 10921001 B2: Methods and apparatus for uniform distribution of liquid desiccant in membrane modules in liquid desiccant air-conditioning systems
- Granted
- 2021-02-16
- Filed
- 2018-11-01 application 16177768
- Type
- Utility · 21 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A liquid desiccant air-conditioning system provides a uniform liquid desiccant flow distribution and wetting out of membranes used in the membrane-modules of the system.
Source: PVGPATDIS, file of 2026-04-10 (ipg210216.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| 7AC Technologies, Inc. 35 patents | US company or organization | Beverly, MA | 7AC Technologies, Inc. Form D issuer EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Carl Allen | Beverly, MA | 8 | PVGPATDIS, file of 2026-04-10 | |
| Mark Allen | Essex, MA | 13 | PVGPATDIS, file of 2026-04-10 | |
| Scott N. Rowe | Dover, NH | 3 | PVGPATDIS, file of 2026-04-10 | |
| Mark D. Rosenblum | Woburn, MA | 2 | PVGPATDIS, file of 2026-04-10 | |
| Peter Luttik | Beverly, MA | 2 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F24F | Air-conditioning; air-humidification; ventilation; use of air currents for screening | F24F3/1417 | PVGPATDIS, file of 2026-04-10 |
| B01D | Separation | B01D53/18 | PVGPATDIS, file of 2026-04-10 |
| F28D | Heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact | F28D21/00 | PVGPATDIS, file of 2026-04-10 |
| F28F | Details of heat-exchange and heat-transfer apparatus, of general application | F28F27/00 | 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 |
|---|---|---|---|---|---|
| 2024-07-09 | Security interest Security interest Security interest | COPELAND LP signed 2024-07-08 | U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT ST. PAUL, MN | 68241/264 | PASDL, file of 2026-10-15 |
| 2023-07-17 | Security interest Security interest Security interest | COPELAND LP signed 2023-05-31 | WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT LOS ANGELES, CA | 64280/695 | PASDL, file of 2026-10-15 |
| 2023-07-17 | Security interest Security interest Security interest | COPELAND LP signed 2023-05-31 | U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT ST. PAUL, MN | 64279/327 | PASDL, file of 2026-10-15 |
| 2023-07-17 | Security interest Security interest Security interest | COPELAND LP signed 2023-05-31 | ROYAL BANK OF CANADA, AS COLLATERAL AGENT TORONTO | 64278/598 | PASDL, file of 2026-10-15 |
| 2023-06-22 | Correction Entity conversion | EMERSON CLIMATE TECHNOLOGIES, INC. signed 2023-05-03 | COPELAND LP SIDNEY, OH | 64058/724 | PASDL, file of 2026-10-15 |
| 2021-04-01 | Merger Merger | 7AC TECHNOLOGIES, INC. signed 2021-01-31 | EMERSON CLIMATE TECHNOLOGIES, INC. SIDNEY, OH | 55800/396 | ECORSEXC, file of 2026-09-25 |
| 2019-02-20 | Assignment Assignment of assignor's interest | ALLEN, CARL signed 2018-10-31 ALLEN, MARK A. signed 2018-10-31 LUTTIK, PETER signed 2018-10-31 ROSENBLUM, MARK D. signed 2018-10-31 ROWE, SCOTT N. signed 2018-10-31 | 7AC TECHNOLOGIES, INC. BEVERLY, MA | 48384/37 | 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.