Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4445085 | Fault location methods and apparatus using current pulse injection | Eric Metcalf, Stephen N. Spens, Brian L. A. Kett | 1984-04-24 |
| 4428061 | Method and apparatus for receiving carrier-borne digital signals intended to operate remotely-operable switching devices | Michael J. Skinner, Eric Metcalf, Howard A. Dorey | 1984-01-24 |
| 4377782 | Fault location methods and apparatus using current pulse injection | Eric Metcalf, Stephen N. Spens, Brian L. A. Kett | 1983-03-22 |