Patents
US 10017434 B2: Membrane-based gas separation processes to separate dehydrogenation reaction products
- Granted
- 2018-07-10
- Filed
- 2016-09-21 application 15271686
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Gas separation processes are provided for separating dehydrogenation reaction products from a raw gas stream to recover hydrocarbons, specifically olefins, such as propylene and iso-butene, as well as unreacted feedstock. The processes employ a sequence of partial condensation steps, interspersed with membrane separation steps to raise the hydrocarbon dewpoint of the uncondensed gas, thereby avoiding the use of low-temperature or cryogenic conditions.
Source: PVGPATDIS, file of 2026-04-10 (ipg180710.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 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Nicholas P. Wynn | Redwood City, CA | 17 | PVGPATDIS, file of 2026-04-10 | |
| Alvin Ng | Milpitas, CA | 7 | PVGPATDIS, file of 2026-04-10 | |
| Douglas Gottschlich | Redwood City, CA | 4 | PVGPATDIS, file of 2026-04-10 | |
| Paul Su | Saratoga, CA | 10 | PVGPATDIS, file of 2026-04-10 | |
| Meijuan Zhou | Delmar, NY | 11 | PVGPATDIS, file of 2026-04-10 | |
| Sylvie Thomas-Droz | Los Altos, CA | 4 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C07C | Acyclic or carbocyclic compounds | C07C7/005 | PVGPATDIS, file of 2026-04-10 |
| B01D | Separation | B01D53/002 | PVGPATDIS, file of 2026-04-10 |
| C01B | Non-metallic elements; compounds thereof; ; metalloids or compounds thereof not covered by subclass c01c | C01B3/501 | PVGPATDIS, file of 2026-04-10 |
| F25J | Liquefaction, solidification or separation of gases or gaseous ; or liquefied gaseous; mixtures by pressure and cold treatment ; or by bringing them into the supercritical state | F25J3/0271 | 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 |
|---|---|---|---|---|---|
| 2018-03-28 | Assignment Assignment of assignor's interest | WYNN, NICHOLAS P. signed 2015-05-21 ZHOU, MEIJUAN signed 2015-08-13 THOMAS-DROZ, SYLVIE signed 2015-08-27 GOTTSCHLICH, DOUGLAS signed 2015-08-28 NG, ALVIN signed 2015-08-28 SU, PAUL signed 2018-03-28 | MEMBRANE TECHNOLOGY AND RESEARCH, INC NEWARK, CA | 45378/9 | 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.