Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5488344 | Toroidal transformer insulation preforms | Philip I. Bisbee, Stephen D. Smith, Eric S. Richardson | 1996-01-30 |
| 5362006 | Segment removal assembly for winding machine | Stephen D. Smith, George W. Springtube | 1994-11-08 |
| 4917318 | Apparatus for fabricating a low voltage winding for a toroidal transformer | Randall L. Schlake, Clark J. Hamkins | 1990-04-17 |
| 4875277 | Formed metal core blocking method | Richard W. Martin, John L. Fisher, William R. Fortenberry, Randall L. Schlake, Ronald F. Dornbrock +1 more | 1989-10-24 |
| 4833436 | Formed metal core blocking | Richard W. Martin, John L. Fisher, William R. Fortenberry, Randall L. Schlake, Ronald F. Dornbrock +1 more | 1989-05-23 |
| 4779812 | Toroidal electrical transformer and method of producing same | John L. Fisher, Herbert J. Macemon, Richard W. Wiedo, Joe E. Curtis, Jr., James F. Rafferty +1 more | 1988-10-25 |
| 4771957 | Apparatus and method for fabricating a low voltage winding for a toroidal transformer | Randall L. Schlake, Clark J. Hamkins | 1988-09-20 |