Patents
US 9636632 B2: Gas separation membranes based on fluorinated and perfluorinated polymers
- Granted
- 2017-05-02
- Filed
- 2016-04-28 application 15141303
- Type
- Utility · 15 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A process for separating components of a gas mixture using gas-separation copolymer membranes. These membranes use a selective layer made from copolymers of an amorphous perfluorinated dioxolane and a fluorovinyl monomer. The resulting membranes have superior selectivity performance for gas pairs of interest while maintaining fast gas permeance compared to membranes prepared using conventional perfluoropolymers such as Teflon® AF, Hlyflon® AD, and Cytop®.
Source: PVGPATDIS, file of 2026-04-10 (ipg170502.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Membrane Technology and Research, Inc. 62 patents | US company or organization | Newark, CA | MEMBRANE TECHNOLOGY AND RESEARCH, INC. State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
| New York University 967 patents | US company or organization | New York, NY | New York University College or university EXACT high confidence: identical full name and state NEW YORK UNIVERSITY Nonprofit EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Timothy C. Merkel | San Jose, CA | 28 | PVGPATDIS, file of 2026-04-10 | |
| Hao Zhang | Fremont, CA | 41 | PVGPATDIS, file of 2026-04-10 | |
| Zhenjie He | Fremont, CA | 7 | PVGPATDIS, file of 2026-04-10 | |
| Yoshiyuki Okamoto | Brooklyn, NY | 52 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B01D | Separation | B01D53/228 | PVGPATDIS, file of 2026-04-10 |
| C01B | Non-metallic elements; compounds thereof; ; metalloids or compounds thereof not covered by subclass c01c | C01B3/503 | PVGPATDIS, file of 2026-04-10 |
| C07C | Acyclic or carbocyclic compounds | C07C7/144 | PVGPATDIS, file of 2026-04-10 |
| C10L | Fuels not otherwise provided for; natural gas; synthetic natural gas obtained by processes not covered by subclasses c10g or c10k; liquified petroleum gas; use of additives to fuels or fires; fire-lighters | C10L3/101 | PVGPATDIS, file of 2026-04-10 |
| Y02C | Capture, storage, sequestration or disposal of greenhouse gases [ghg] | Y02C20/40 | PVGPATDIS, file of 2026-04-10 |
| Y02P | Climate change mitigation technologies in the production or processing of goods | Y02P20/151 | 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 |
|---|---|---|---|---|---|
| 2017-01-10 | Assignment Assignment of assignor's interest | OKAMOTO, YOSHI signed 2016-12-27 | NEW YORK UNIVERSITY NEW YORK, NY | 41326/164 | PASDL, file of 2026-10-15 |
| 2017-01-04 | Assignment Assignment of assignor's interest | OKAMOTO, YOSHI signed 2016-12-27 | NEW YORK UNIVERSITY NEW YORK, NY | 41248/908 | PASDL, file of 2026-10-15 |
| 2016-11-29 | Assignment Assignment of assignor's interest | MERKEL, TIMOTHY C signed 2016-04-20 HE, ZHENJIE signed 2016-04-20 ZHANG, HAO signed 2016-04-20 | MEMBRNE TECHNOLOGY AND RESEARCH, INC NEWARK, CA | 40451/29 | 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.