Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4564757 | Mirror position sensor for improved track selection in optical data disk system | Edward V. LaBudde, Der-Chang Hsieh, Roger C. Parker, Robert J. Johnson | 1986-01-14 | $7,370,000 |
| 4560925 | Mirror position sensor and associated pivot suspension for improved track selection in optical data disk system | Der-Chang Hsieh | 1985-12-24 | $5,056,000 |
| 4544241 | Mirror position sensor and associated motor for improved track selection in optical data disk system | Edward V. LaBudde | 1985-10-01 | $2,427,000 |