Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886980 | Transmission line sensor apparatus operable with near zero current line conditions | Richard L. Sieron | 1989-12-12 |
| 4855671 | Electrical power line and substation monitoring apparatus | — | 1989-08-08 |
| 4829298 | Electrical power line monitoring systems, including harmonic value measurements and relaying communications | — | 1989-05-09 |
| 4818990 | Monitoring system for power lines and right-of-way using remotely piloted drone | — | 1989-04-04 |
| 4808917 | Transmission line sensor apparatus operable with near zero current line conditions | Richard L. Sieron | 1989-02-28 |
| 4801937 | Line mounted apparatus for remote measurement of power system or environmental parameters beyond line-of-site distanc | — | 1989-01-31 |
| 4799005 | Electrical power line parameter measurement apparatus and systems, including compact, line-mounted modules | — | 1989-01-17 |