Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4917318 | Apparatus for fabricating a low voltage winding for a toroidal transformer | Clark J. Hamkins, James D. Richerson | 1990-04-17 |
| 4875277 | Formed metal core blocking method | Richard W. Martin, John L. Fisher, William R. Fortenberry, Ronald F. Dornbrock, James D. Richerson +1 more | 1989-10-24 |
| 4833436 | Formed metal core blocking | Richard W. Martin, John L. Fisher, William R. Fortenberry, Ronald F. Dornbrock, James D. Richerson +1 more | 1989-05-23 |
| 4771957 | Apparatus and method for fabricating a low voltage winding for a toroidal transformer | Clark J. Hamkins, James D. Richerson | 1988-09-20 |
| 4699184 | Apparatus and method for fabricating a high voltage winding for a toroidal transformer | Herbert J. Macemon | 1987-10-13 |
| 4683919 | Apparatus and method for fabricating a high voltage winding for a toroidal transformer | Herbert J. Macemon, John L. Fisher, Clair E. Piatt, Hubert L. R. Mohney | 1987-08-04 |