Patents
US 12540863 B2: Capacitance-based temperature sensor with delay
- Granted
- 2026-02-03
- Filed
- 2022-07-18 application 17867042
- Type
- Utility · 26 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A temperature exposure indicator includes a first temperature responsive material, a capacitor including a first electrode, a second electrode, and a gap between the first electrode and the second electrode, and a first path connecting the first temperature responsive material to the gap. The first temperature responsive material is configured to migrate along the first path and into or along the gap in response to exposure to a temperature above a first threshold temperature. The migration of the first temperature responsive material into or along the gap causes a change of the capacitance of the capacitor.
Source: PTBLXML, file of 2026-02-03 (ipgb20260203.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| ZEBRA TECHNOLOGIES CORPORATION 1,077 patents | US company or organization | Lincolnshire, IL | ZEBRA TECHNOLOGIES CORP SEC filer FUZZY low confidence: same name (legal endings aside), one of each nationally | PTBLXML, file of 2026-02-03 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Eric W. Liberato | Pequannock, NJ | 16 | PTBLXML, file of 2026-02-03 | |
| Mohannad Abdo | Clifton, NJ | 51 | PTBLXML, file of 2026-02-03 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01K | Measuring temperature; measuring quantity of heat; thermally-sensitive elements not otherwise provided for | G01K7/34 | PTBLXML, file of 2026-02-03 |
| G06K | Graphical data reading ; presentation of data; record carriers; handling record carriers | G06K19/0723 | PTBLXML, file of 2026-02-03 |
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 |
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.