Patents
US 12692189 B2: Low-temperature fabrication method of bulk metamaterial structures for heat-sensitive materials
- Granted
- 2026-07-28
- Filed
- 2023-11-07 application 18503922
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method of fabricating metamaterial structures without exceeding 30° C. or less in temperature comprises forming a metasurface mask by depositing a layer of nanoparticles on a surface of the substrate, etching the surface of the substrate with the nanoparticles thereon using reactive ion beam etching (RIBE), and removing at least a portion of the nanoparticles from the etched surface. Nanometer size surface features are thereby formed on the surface of a material without exceeding 30° C. in temperature, thereby forming metamaterial structures with a reduced incidence of thermal damage to the material.
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 |
|---|---|---|---|---|
| Hoang T. Nguyen | Livermore, CA | 14 | PTBLXML, file of 2026-07-28 | |
| Candis Alexzandra Jackson | Tracy, CA | PTBLXML, file of 2026-07-28 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C03C | Chemical composition of glasses, glazes or vitreous enamels; surface treatment of glass; surface treatment of fibres or filaments made from glass, minerals or slags; joining glass to glass or other materials | C03C15/00 | 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 |
|---|---|---|---|---|---|
| 2024-01-12 | Assignment Assignment of assignor's interest | NGUYEN, HOANG T. signed 2024-01-02 JACKSON, CANDIS ALEXZANDRA signed 2024-01-05 | LAWRENCE LIVERMORE NATIONAL SECURITY, LLC LIVERMORE, CA | 66114/145 | PASDL, file of 2026-08-13 |
| 2023-12-04 | Government interest Confirmatory license (see document for details) | LAWRENCE LIVERMORE NATIONAL SECURITY, LLC signed 2023-12-01 | U.S. DEPARTMENT OF ENERGY WASHINGTON, DC | 65757/956 | 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.