Patents
US 8532725 B2: Parallel connected HTS utility device and method of using same
- Granted
- 2013-09-10
- Filed
- 2010-01-25 application 12692793
- Type
- Utility · 14 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method of controlling fault currents within a utility power grid is provided. The method may include coupling a superconducting electrical path between a first and a second node within the utility power grid and coupling a non-superconducting electrical path between the first and second nodes within the utility power grid. The superconducting electrical path and the non-superconducting electrical path may be electrically connected in parallel. The superconducting electrical path may have a lower series impedance, when operated below a critical current level, than the non-superconducting electrical path. The superconducting electrical path may have a higher series impedance, when operated at or above the critical current level, than the non-superconductor electrical path.
Source: PVGPATDIS, file of 2026-04-10 (ipg130910.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| American Superconductor Corporation 53 patents | US company or organization | Devens, MA | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Douglas C. Folts | Baraboo, WI | 11 | PVGPATDIS, file of 2026-04-10 | |
| James Maguire | Andover, MA | 11 | PVGPATDIS, file of 2026-04-10 | |
| Jie Yuan | Grafton, MA | 62 | PVGPATDIS, file of 2026-04-10 | |
| Alexis P. Malozemoff | Lexington, MA | 5 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H01B | Cables; conductors; insulators; selection of materials for their conductive, insulating or dielectric properties | H01B12/02 | PVGPATDIS, file of 2026-04-10 |
| H02H | Emergency protective circuit arrangements | H02H7/001 | PVGPATDIS, file of 2026-04-10 |
| H10N | Electric solid-state devices not otherwise provided for | H10N60/30 | PVGPATDIS, file of 2026-04-10 |
| Y02E | Reduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution | Y02E40/60 | 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 |
|---|---|---|---|---|---|
| 2010-02-23 | Assignment Assignment of assignor's interest | MALOZEMOFF, ALEXIS P. signed 2010-02-04 FOLTS, DOUGLAS C. signed 2010-02-10 YUAN, JIE signed 2010-02-11 MAGUIRE, JAMES signed 2010-02-22 | AMERICAN SUPERCONDUCTOR CORPORATION DEVENS, MA | 23977/209 | 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.