Patents
US 12691530 B2: Method for enhancement of laser material processing via modulation of laser light intensity
- Granted
- 2026-07-28
- Filed
- 2019-03-22 application 17040098
- Type
- Utility · 5 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
The present disclosure relates to a laser-based system and method for providing efficient melt removal of material from a surface of a material sample being acted on in a laser machining operation. In one implementation the system may make use of a continuous wave (CW) laser for generating a laser beam directed at a spot on the surface of the material sample. The CW laser may be configured to be modulated at a predetermined frequency such that the laser beam excites and amplifies surface capillary waves on the surface of the sample up to a melt ejection point, which ejects molten material from the spot being acted on by the laser beam, to more rapidly facilitate material removal from the spot.
Source: PTBLXML, file of 2026-07-28 (ipgb20260728.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Lawrence Livermore National Security, LLC 1,498 patents | US company or organization | Livermore, CA | LAWRENCE LIVERMORE NATIONAL SECURITY, LLC State business registration EXACT high confidence: identical full name and state | PTBLXML, file of 2026-07-28 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Sonny S. Ly | Mountain House, CA | 3 | PTBLXML, file of 2026-07-28 | |
| Jeffrey D. Bude | Livermore, CA | 9 | PTBLXML, file of 2026-07-28 | |
| Gabriel Mark Guss | Manteca, CA | 10 | PTBLXML, file of 2026-07-28 | |
| Wesley John Keller | Orinda, CA | 2 | PTBLXML, file of 2026-07-28 | |
| Raluca A. Negres | Pleasanton, CA | 5 | PTBLXML, file of 2026-07-28 | |
| Alexander M. Rubenchik | Livermore, CA | 22 | PTBLXML, file of 2026-07-28 | |
| Shen | Milpitas, CA | 10 | PTBLXML, file of 2026-07-28 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B23K | Soldering or unsoldering; welding; cladding or plating by soldering or welding; cutting by applying heat locally, e.g. flame cutting; working by laser beam | B23K26/382 | PTBLXML, file of 2026-07-28 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2020-11-12 | Government interest Confirmatory license (see document for details) | LAWRENCE LIVERMORE NATIONAL SECURITY, LLC signed 2020-11-11 | U.S. DEPARTMENT OF ENERGY WASHINGTON, DC | 54396/994 | PASDL, file of 2026-08-13 |
| 2020-09-23 | Assignment Assignment of assignor's interest | LY, SONNY S. signed 2020-08-25 BUDE, JEFFREY D. signed 2020-04-29 GUSS, GABRIEL MARK signed 2020-08-10 KELLER, WESLEY JOHN signed 2020-05-28 NEGRES, RALUCA A. signed 2020-08-10 RUBENCHIK, ALEXANDER M., DR. signed 2020-08-11 SHEN, NAN signed 2020-08-13 | LAWRENCE LIVERMORE NATIONAL SECURITY, LLC LIVERMORE, CA | 53856/842 | PASDL, file of 2026-08-13 |
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.