Patents
US 12623259 B2: Methods and devices for cleaning dust from a surface
- Granted
- 2026-05-12
- Filed
- 2022-08-05 application 17881880
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Disclosed herein are methods and devices for cleaning a surface of a substrate having a layer of dust disposed thereon by ejecting at least a portion of the dust from the surface. The methods comprise irradiating the layer of dust with an electron beam, such that the electron beam irradiates a particle thereby inducing said particle to emit a plurality of secondary electrons; wherein at least a portion of the plurality of secondary electrons impinge two or more neighboring particles to thereby generate a secondary charge on the two or more neighboring particles, wherein the secondary charge on the two or more neighboring particles creates an electrostatic repulsive force between said particles, wherein the electrostatic repulsive force is sufficient to eject said particles from the surface.
Source: PTBLXML, file of 2026-05-12 (ipgb20260512.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| The Regents of the University of Colorado 307 patents | US company or organization | Denver, CO | THE REGENTS OF THE UNIVERSITY OF COLORADO Federal lobbying client EXACT high confidence: identical full name and state REGENTS OF THE UNIVERSITY OF COLORADO Nonprofit FUZZY medium confidence: same name (governing-board words and legal endings aside) and state | PTBLXML, file of 2026-05-12 |
| California Institute of Technology 2,588 patents | US company or organization | Pasadena, CA | CALIFORNIA INSTITUTE OF TECHNOLOGY State business registration EXACT high confidence: identical full name and state California Institute of Technology College or university EXACT high confidence: identical full name and state CALIFORNIA INSTITUTE OF TECHNOLOGY Nonprofit EXACT high confidence: identical full name and state | PTBLXML, file of 2026-05-12 |
| University of Iowa Research Foundation 401 patents | US company or organization | Iowa City, IA | UNIVERSITY OF IOWA RESEARCH FOUNDATION Nonprofit EXACT high confidence: identical full name and state | PTBLXML, file of 2026-05-12 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Xu Wang | Superior, CO | PTBLXML, file of 2026-05-12 | ||
| Mihaly Horanyi | Boulder, CO | PTBLXML, file of 2026-05-12 | ||
| Benjamin Farr | Boulder, CO | PTBLXML, file of 2026-05-12 | ||
| Inseob Hahn | Glendale, CA | 6 | PTBLXML, file of 2026-05-12 | |
| Ulf Israelsson | Altadena, CA | PTBLXML, file of 2026-05-12 | ||
| John Goree | Iowa City, IA | PTBLXML, file of 2026-05-12 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B08B | Cleaning in general; prevention of fouling in general | B08B6/00 | PTBLXML, file of 2026-05-12 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2026-01-27 | Assignment Assignment of assignor's interest | GOREE, JOHN signed 2023-10-05 | UNIVERSITY OF IOWA RESEARCH FOUNDATION IOWA CITY, IA | 73589/452 | PASDL, file of 2026-10-15 |
| 2026-01-27 | Assignment Assignment of assignor's interest | HAHN, INSEOB signed 2022-10-20 ISRAELSSON, ULF signed 2023-02-24 | CALIFORNIA INSTITUTE OF TECHNOLOGY PASADENA, CA | 73589/448 | PASDL, file of 2026-10-15 |
| 2026-01-27 | Assignment Assignment of assignor's interest | WANG, XU signed 2022-09-22 HORANYI, MIHALY signed 2022-09-22 FARR, BENJAMIN signed 2022-09-22 | THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE DENVER, CO | 73589/412 | 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.