Patents
US 11813566 B2: Membrane CO2 separation process
- Granted
- 2023-11-14
- Filed
- 2021-05-10 application 17315902
- Type
- Utility · 52 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Described herein are membrane processes for separating CO2 from flue gas. An exemplary process involves passing a fluid stream including the flue gas across a membrane permeable to CO2 and H2O, removing treated gas from a feed side of the membrane that has less CO2 than the flue gas, and removing permeate from a permeate side of the membrane comprising CO2 and H2O. Suitably, the permeate is removed at a sub-atmospheric vacuum pressure. The permeate is then cooled to remove at least some of the H2O from the permeate and form a smaller volume of H2O-depleted, CO2 enriched permeate.
Source: PVGPATDIS, file of 2026-04-10 (ipg231114.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 |
|---|---|---|---|---|
| Richard W. Baker | Palo Alto, CA | 35 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B01D | Separation | B01D53/22 | 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 |
|---|---|---|---|---|---|
| 2022-03-11 | Assignment Assignment of assignor's interest | BAKER, RICHARD W. signed 2020-05-26 | MEMBRANE TECHNOLOGY AND RESEARCH, INC. NEWARK, CA | 59238/130 | 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.