Patents
US 12332121 B2: Semi-irreversible temperature exposure sensor customizable by thermal printer
- Granted
- 2025-06-17
- Filed
- 2021-10-11 application 17498371
- Type
- Utility · 32 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A customizable temperature exposure indicator and methods for making the same are disclosed. The temperature exposure indicator includes a substrate, a printing region of the substrate forming a heat sensitive media that is configured to darken when it is heated by a thermal printhead, the darkening being permanent with respect to subsequent cooling of the media; at least one memory thermochromic composition provided on an indicator region of the substrate, the thermochromic composition is configured to have high temperature color state when it is heated above a high temperature threshold, and to remain in the high temperature color state until it is cooled below a low temperature threshold, the thermochromic composition is configured to have a low temperature color state when it is cooled below the low temperature threshold and to maintain the low temperature threshold until it is heated above the high temperature threshold.
Source: PVGPATDIS, file of 2026-04-10 (ipg250617.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 |
|---|---|---|---|---|
| Gene A. Hofer | Lake Zurich, IL | 15 | PVGPATDIS, file of 2026-04-10 | |
| Mohannad Abdo | Clifton, NJ | 51 | PVGPATDIS, file of 2026-04-10 | |
| Marielle K. SMITH | Sayreville Junction, NJ | 14 | PVGPATDIS, file of 2026-04-10 | |
| Arianna E. Harding | Cary, IL | 2 | 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 | G01K11/12 | PVGPATDIS, file of 2026-04-10 |
| B41J | Typewriters; selective printing mechanisms, i.e. mechanisms printing otherwise than from a forme; correction of typographical errors | B41J2/375 | PVGPATDIS, file of 2026-04-10 |
| 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 | C09D11/50 | PVGPATDIS, file of 2026-04-10 |
| G09F | Displaying; advertising; signs; labels or name-plates; seals | G09F2003/0211 | 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 |
| 2022-03-17 | Assignment Assignment of assignor's interest | ABDO, MOHANNAD signed 2021-10-05 HARDING, ARIANNA E. signed 2021-10-05 HOFER, GENE A. signed 2021-10-11 SMITH, MARIELLE K. signed 2021-10-11 | TEMPTIME CORPORATION MORRIS PLAINS, NJ | 59291/458 | 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.