Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876667 | Data storage device having a phase change memory medium reversible by direct overwrite | Eric Bjornard, David Strand | 1989-10-24 |
| 4737934 | Data storage device and system having an optically non transmissive chalcogenide layer | Erik J. Bjornard | 1988-04-12 |