Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890297 | Burst jammer erasure circuit for spread spectrum receivers | John W. Zscheile, Jr., Billie M. Spencer | 1989-12-26 |
| 4827269 | Apparatus to maintain arbitrary polarization stabilization of an antenna | Lowell N. Shestag, John W. Zscheile, Jr., Glen Samuel Kirkpatrick | 1989-05-02 |
| 4817001 | Method of correcting navigation system errors caused by drift | Billie M. Spencer, John W. Zscheile, Jr. | 1989-03-28 |
| 4817113 | Range estimation using floating reference points | Samuel C. Kingston, Billie M. Spencer, John W. Zscheile, Jr. | 1989-03-28 |
| 4809295 | Code lengthening system | John W. Zscheile, Jr., Bellie M. Spencer | 1989-02-28 |