Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825327 | Negative and zero sequence directional overcurrent unit for AC power transmission line protection | Stanley B. Wilkinson | 1989-04-25 |
GA
George E. Alexander
Overall (1989): #112,750 of 140,708Top 85%
1
Patents 1989