Patents
US 12687581 B2: Technique for estimation of internal battery temperature
- Granted
- 2026-07-21
- Filed
- 2022-03-18 application 17698472
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
One embodiment is a method for estimating an internal temperature of a battery, the method comprising obtaining multiple terminal impedance measurements, wherein each of the terminal impedance measurements is taken at a different one of a plurality of frequencies; determining model parameters for a multivariable polynomial regression model; and applying the multivariable polynomial regression model to the multiple terminal impedance measurements to estimate the internal temperature of the battery.
Source: PTBLXML, file of 2026-07-21 (ipgb20260721.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Analog Devices, Inc. 2,069 patents | US company or organization | Wilmington, MA | ANALOG DEVICES INC SEC filer EXACT medium confidence: identical full name, one of each nationally | PTBLXML, file of 2026-07-21 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Frank Yaul | Somerville, MA | PTBLXML, file of 2026-07-21 | ||
| Sunrita Poddar | Jamaica Plain, MA | 5 | PTBLXML, file of 2026-07-21 | |
| Hemtej Gullapalli | Littleton, MA | 7 | PTBLXML, file of 2026-07-21 | |
| Omer Tanovic | Cambridge, MA | 5 | PTBLXML, file of 2026-07-21 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01R | Measuring electric variables; measuring magnetic variables | G01R31/367 | PTBLXML, file of 2026-07-21 |
| G01K | Measuring temperature; measuring quantity of heat; thermally-sensitive elements not otherwise provided for | G01K7/427 | PTBLXML, file of 2026-07-21 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2022-03-18 | Assignment Assignment of assignor's interest | YAUL, FRANK signed 2022-03-12 PODDAR, SUNRITA signed 2022-03-17 GULLAPALLI, HEMTEJ signed 2022-03-12 TANOVIC, OMER signed 2022-03-14 | ANALOG DEVICES, INC. WILMINGTON, MA | 59309/813 | PASDL, file of 2026-08-13 |
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.