Patents
US 11913845 B2: Tunable capacitance-based temperature sensor
- Granted
- 2024-02-27
- Filed
- 2021-02-25 application 17185381
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A temperature indicator includes a first capacitor configured to change capacitance when exposed to a temperature above a first threshold temperature, a second capacitor configured to change capacitance when exposed to a temperature above a second threshold temperature. The first capacitor is electrically connected to the second capacitor. The second threshold temperature is different than the first threshold temperature. The first capacitor and the second capacitor retain their changed capacitance permanently after they return to a temperature below their respective threshold temperature.
Source: PVGPATDIS, file of 2026-04-10 (ipg240227.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| TEMPTIME CORPORATION 59 patents | US company or organization | Littleton, NJ | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Ravi Bhatia | Cedar Knolls, NJ | 11 | PVGPATDIS, file of 2026-04-10 | |
| Thi N. Do | West Orange, NJ | 13 | PVGPATDIS, file of 2026-04-10 | |
| Brian S. Huffman | Montgomery, NJ | 20 | PVGPATDIS, file of 2026-04-10 | |
| Mohannad Abdo | Clifton, NJ | 51 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01K | Measuring temperature; measuring quantity of heat; thermally-sensitive elements not otherwise provided for | G01K7/34 | 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 |
|---|---|---|---|---|---|
| 2025-05-29 | Merger Merger | TEMPTIME CORPORATION signed 2025-05-22 | ZEBRA TECHNOLOGIES CORPORATION LINCOLNSHIRE, IL | 71548/54 | PASDL, file of 2026-10-15 |
| 2021-04-16 | Assignment Assignment of assignor's interest | BHATIA, RAVI signed 2021-02-25 DO, THI N. signed 2021-02-24 HUFFMAN, BRIAN S. signed 2021-02-25 ABDO, MOHANNAD signed 2021-02-25 | TEMPTIME CORPORATION MORRIS PLAINS, NJ | 55939/555 | 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.