Patents
US 12746508 B2: Device and method for passive collection of atmospheric carbon dioxide with a double-walled harvest chamber
- Granted
- 2026-09-29
- Filed
- 2022-10-11 application 18700628
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A device and method for passive collection of atmospheric CO2 is disclosed. The device includes a chamber having an inner wall, an outer wall, an annular void between the inner and outer walls, and a sump connecting the annular void and an inner cylinder. The device also includes a capture structure having a sorbent material and movable between open and closed configurations. The device includes a water delivery device with a pump and a water applicator positioned within the annular void to dispense water onto the outer wall. The pump transfers water from the sump to the applicator. The open configuration includes the sorbent exposed and allowed to capture CO2. The closed configuration includes the capture structure being enclosed inside the chamber such that a heated water vapor releases captured CO2. The vapor is created by the solar heating of the outer wall and the water dispensed within.
Source: PTBLXML, file of 2026-09-29 (ipgb20260929.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY 1,571 patents | US company or organization | Scottsdale, AZ | PTBLXML, file of 2026-09-29 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Klaus Lackner | Longmont, CO | PTBLXML, file of 2026-09-29 | ||
| Shreyans Kedia | Tempe, AZ | 5 | PTBLXML, file of 2026-09-29 | |
| Brinton Carlson | Turlock, CA | 3 | PTBLXML, file of 2026-09-29 | |
| Venkatram Choodamani | Tempe, AZ | 4 | PTBLXML, file of 2026-09-29 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B01D | Separation | B01D53/62 | PTBLXML, file of 2026-09-29 |
| B01J | Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus | B01J41/14 | PTBLXML, file of 2026-09-29 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
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.