Patents
US 12503611 B2: Glass-ceramic thermal paint system and method using UV:VIS spectroscopy
- Granted
- 2025-12-23
- Filed
- 2023-05-12 application 18316280
- Type
- Utility · 14 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Temperature measurements are critical in gas turbine engine design but difficult to obtain due to the extreme environment. Temperature indicating paints (thermal paints) have been used for decades to map maximum temperature fields on superalloy components but have numerous weaknesses. Disclosed herein are novel glass ceramic thermal paints that undergo viscous flow sintering to indicate temperatures up to 1000° C., with high resolution (±5° C.), by an optical transition. Disclosed paint formulations are designed to adhere to Nickel-based superalloys or SiC—SiC ceramic matrix composites (CMC) by closely matching coefficients of thermal expansion and may function for times above 60 hours. By utilizing automation and a UV:VIS spectrometer, quantitative temperature maps can be generated for easy comparison to theoretical models. A transient sintering energy model is disclosed to recover full thermal history information.
Source: PVGPATDIS, file of 2026-04-10 (ipg251223.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| University of Rhode Island Board of Trustees 40 patents | US company or organization | Kingston, RI | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Noah A. Burke | Cumberland, RI | 3 | PVGPATDIS, file of 2026-04-10 | |
| Panagiotis Panoutsopoulos | Middletown, RI | 1 | PVGPATDIS, file of 2026-04-10 | |
| Zachary Ahlquist | Olneyville, RI | 1 | PVGPATDIS, file of 2026-04-10 | |
| Otto J. Gregory | Point Judith, RI | 23 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C09D | Coating compositions, e.g. paints, varnishes or lacquers; filling pastes; chemical paint or ink removers; inks; correcting fluids; woodstains; pastes or solids for colouring or printing; use of materials therefor | C09D5/26 | PVGPATDIS, file of 2026-04-10 |
| G01K | Measuring temperature; measuring quantity of heat; thermally-sensitive elements not otherwise provided for | G01K1/022 | 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 |
|---|---|---|---|---|---|
| 2023-07-25 | Assignment Assignment of assignor's interest | GREGORY, OTTO J. signed 2023-05-12 PANOUTSOPOULOS, PANAGIOTIS signed 2023-05-22 BURKE, NOAH signed 2023-05-24 AHLQUIST, ZACHARY signed 2023-05-25 | UNIVERSITY OF RHODE ISLAND BOARD OF TRUSTEES KINGSTON, RI | 64376/610 | 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.