Patents
US 11638904 B2: Porous membrane encapsulated pellet and method for its preparation
- Granted
- 2023-05-02
- Filed
- 2020-12-15 application 17121974
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method of encapsulating an engineered pellet in a porous membrane is disclosed. The method includes the steps of: (i) dissolving a membrane solute in a membrane solvent to produce a membrane solution; (ii) applying the membrane solution to a pellet to form a pellet encapsulated with the membrane solution; (iii) subjecting the membrane solution that encapsulates the pellet to a phase inversion and; (iv) drying the pellet to form a porous membrane encapsulated pellet. A porous membrane encapsulated pellet is also described.
Source: PVGPATDIS, file of 2026-04-10 (ipg230502.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| University of South Alabama 42 patents | US company or organization | Mobile, AL | University of South Alabama State business registration EXACT high confidence: identical full name and state University of South Alabama College or university EXACT high confidence: identical full name and state UNIVERSITY OF SOUTH ALABAMA Nonprofit EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
| THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA 193 patents | US company or organization | Tuscaloosa, AL | The University of Alabama College or university FUZZY medium confidence: same name (governing-board words and legal endings aside) and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Thomas Grant Glover | Spanish Fort, AL | 9 | PVGPATDIS, file of 2026-04-10 | |
| Stephen M. Ritchie | Northport, AL | 1 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B01D | Separation | B01D69/141 | PVGPATDIS, file of 2026-04-10 |
| B01J | Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus | B01J20/165 | PVGPATDIS, file of 2026-04-10 |
| Y02C | Capture, storage, sequestration or disposal of greenhouse gases [ghg] | Y02C20/40 | 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 |
|---|---|---|---|---|---|
| 2024-10-11 | Assignment Assignment of assignor's interest | GLOVER, THOMAS GRANT, DR. signed 2024-10-11 | THE UNIVERSITY OF SOUTH ALABAMA MOBILE, AL | 68877/963 | ECORSEXC, file of 2026-09-25 |
| 2024-10-11 | Assignment Assignment of assignor's interest | RITCHIE, STEPHEN MICHAEL CHRISTOPHER, DR. signed 2023-03-08 | THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA TUSCALOOSA, AL | 68877/567 | 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.