Patents
US 12748225 B2: Wireless chipless printed sensor tag for real-time radiation sterilization monitoring
- Granted
- 2026-09-29
- Filed
- 2023-07-21 application 18224913
- Type
- Utility · 15 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A system may receive a package previously irradiated for sterilization. The package may have a sensor comprising a reference tag and sensing tag at least partially coated with a material comprising poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and Polyurethan (PU). The system may scan the sensing tag and the reference tag. The system may determine, based on radio frequency (RF) signals reflected from the sensing tag and reference tag, the sensor is exposed to radiation. The system may output a quality measure indicative of the sensor being exposed to radiation.
Source: PTBLXML, file of 2026-09-29 (ipgb20260929.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Purdue Research Foundation 2,151 patents | US company or organization | West Lafayette, IN | PURDUE RESEARCH FOUNDATION Nonprofit EXACT high confidence: identical full name and state | PTBLXML, file of 2026-09-29 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Rahim Rahimi | West Lafayette, IN | 20 | PTBLXML, file of 2026-09-29 | |
| Ulisses Heredia Rivera | Hillsboro, OR | 2 | PTBLXML, file of 2026-09-29 | |
| Sarath Gopalakrishnan | Santa Rosa, CA | 3 | PTBLXML, file of 2026-09-29 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01T | Measurement of nuclear or x-radiation | G01T1/24 | PTBLXML, file of 2026-09-29 |
| A61L | Methods or apparatus for sterilising materials or objects in general; disinfection, sterilisation or deodorisation of air; chemical aspects of bandages, dressings, absorbent pads or surgical articles; materials for bandages, dressings, absorbent pads or surgical articles | A61L2/081 | PTBLXML, file of 2026-09-29 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
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.