Patents
US 11880062 B2: Microheater comprising a rare earth-doped optical fiber
- Granted
- 2024-01-23
- Filed
- 2019-11-20 application 16689349
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A microheater comprises an optical fiber including a rare earth-doped glass core surrounded by a glass cladding. The rare earth-doped glass core comprises a rare earth dopant at a concentration sufficient for luminescence quenching such that, when the rare earth dopant is pumped with light at an absorption band wavelength, at least about 90% of absorbed pump light is converted into heat.
Source: PVGPATDIS, file of 2026-04-10 (ipg240123.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| The Board of Trustees of the University of Illinois 1,493 patents | US company or organization | Urbana, IL | THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS Nonprofit EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
| Clemson University 122 patents | US company or organization | Clemson, SC | Clemson University State business registration EXACT high confidence: identical full name and state Clemson University College or university EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Peter Dragic | Champaign, IL | 13 | PVGPATDIS, file of 2026-04-10 | |
| John Ballato | Clemson, SC | 12 | PVGPATDIS, file of 2026-04-10 | |
| Andrey Mironov | Urbana, IL | 7 | PVGPATDIS, file of 2026-04-10 | |
| Courtney Kucera | Anderson, SC | 1 | PVGPATDIS, file of 2026-04-10 | |
| Matthew Artus Tuggle | Charleston, SC | 7 | PVGPATDIS, file of 2026-04-10 |
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 | C03C13/04 | PVGPATDIS, file of 2026-04-10 |
| G02B | Optical elements, systems or apparatus | G02B6/02114 | PVGPATDIS, file of 2026-04-10 |
| C03B | Manufacture, shaping, or supplementary processes | C03B37/01211 | 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 |
|---|---|---|---|---|---|
| 2022-07-13 | Assignment Assignment of assignor's interest | BALLATO, JOHN signed 2019-11-25 TUGGLE, MATTHEW signed 2019-11-25 KUCERA, COURTNEY signed 2019-12-04 | CLEMSON UNIVERSITY CLEMSON, SC | 60492/697 | ECORSEXC, file of 2026-09-25 |
| 2022-07-13 | Assignment Assignment of assignor's interest | DRAGIC, PETER signed 2022-06-21 MIRONOV, ANDREY signed 2022-06-22 | THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS URBANA, IL | 60492/453 | 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.