Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879433 | Parallel cable bus with internal path length compensation | Fred H. Lohrey, Jerry Lorenzen | 1989-11-07 |
| 4868732 | Pluggable power system having magnetic flux coupled power transformer and inductive filter components | James H. Spreen | 1989-09-19 |
| 4803609 | D. C. to D. C. converter | James H. Spreen | 1989-02-07 |