Patents
US 12042779 B2: Gas separation membranes from polymer-grafted nanoparticles
- Granted
- 2024-07-23
- Filed
- 2020-04-07 application 17617113
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Gas separation membranes as may be used in separating gaseous materials from one another and methods of forming the membranes are described. The separation membranes include polymer-grafted nanoparticles (GNPs) as a platform and a relatively small amount of free polymer. The free polymer and the polymer grafted to the nanoparticles have the same chemical structure and similar number average molecular weights. The gas separation membranes can exhibit high ideal selectivity and can be used in a variety of applications, such as carbon capture.
Source: PVGPATDIS, file of 2026-04-10 (ipg240723.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| University of South Carolina 570 patents | US company or organization | Columbia, SC | UNIVERSITY OF SOUTH CAROLINA Federal lobbying client EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
| COLUMBIA UNIVERSITY 26 patents | US company or organization | New York, NY | TRUSTEES OF COLUMBIA UNIVERSITY Nonprofit 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 |
|---|---|---|---|---|
| Brian Benicewicz | Columbia, SC | 39 | PVGPATDIS, file of 2026-04-10 | |
| Yucheng Huang | Charlottesville, VA | 7 | PVGPATDIS, file of 2026-04-10 | |
| Connor Bilchak | Clifton Heights, PA | 2 | PVGPATDIS, file of 2026-04-10 | |
| Sanat K. Kumar | New York, NY | 8 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B01J | Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus | B01J20/28038 | PVGPATDIS, file of 2026-04-10 |
| B01D | Separation | B01D53/228 | PVGPATDIS, file of 2026-04-10 |
| C08F | Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds | C08F292/00 | 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 |
|---|---|---|---|---|---|
| 2023-08-22 | Assignment Assignment of assignor's interest | BILCHAK, CONNOR signed 2020-01-22 KUMAR, SANAT signed 2020-03-30 | COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK NEW YORK, NY | 64663/854 | ECORSEXC, file of 2026-09-25 |
| 2023-08-22 | Assignment Assignment of assignor's interest | BENICEWICZ, BRIAN C. signed 2020-03-30 HUANG, YUCHENG signed 2020-03-30 | UNIVERSITY OF SOUTH CAROLINA COLUMBIA, SC | 64663/766 | 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.