Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5264169 | Surge stability improvement of zinc oxide varistor discs | Kenneth C. Radford, Robert G. Johnson | 1993-11-23 |
| 5142264 | High energy absorbing varistor | Kenneth C. Radford, Robert G. Johnson | 1992-08-25 |
| 5053739 | Very high energy absorbing varistor | Kenneth C. Radford, Robert G. Johnson | 1991-10-01 |
| 5037594 | Method for making varistor discs with increased high temperature stability | Kenneth C. Radford, Robert G. Johnson | 1991-08-06 |
| 4945333 | Fuse assembly, for a cutout, with accelerated arc extinction | Nicholas J. Stroud, Frederick J. Brown, Thomas P. Basa | 1990-07-31 |
| 4663692 | Electrical surge arrester and disconnector | Charles H. Carothers | 1987-05-05 |
| 4577148 | Surge arrester equipped for monitoring functions and method of use | — | 1986-03-18 |
| 4549981 | Voltage limiting composition and method of fabricating the same | Tapan K. Gupta, William G. Carlson, Joseph C. Osterhout, Gerald B. Boyette | 1985-10-29 |
| 4477792 | Modular power system reactor | Thomas H. Putman, Frederick J. Brown | 1984-10-16 |
| 4460497 | Voltage stable nonlinear resistor containing minor amounts of aluminum and selected alkali metal additives | Tapan K. Gupta, William G. Carlson | 1984-07-17 |
| 4452728 | Voltage stable nonlinear resistor containing minor amounts of aluminum, boron and selected alkali metal additives | William G. Carlson, Tapan K. Gupta | 1984-06-05 |
| 4452729 | Voltage stable nonlinear resistor containing minor amounts of aluminum and boron | William G. Carlson, Tapan K. Gupta | 1984-06-05 |
| 4223366 | Gapless surge arrester | Tapan K. Gupta, Richard E. Kothmann, Joseph C. Osterhout | 1980-09-16 |