Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829568 | System for the printing and reading of encrypted messages | John I. Clark, Alton B. Eckert | 1989-05-09 |
| 4793908 | Multiple ion source method and apparatus for fabricating multilayer optical films | Gene Scott, Charles W. Kohlenberger | 1988-12-27 |
| 4641346 | System for the printing and reading of encrypted messages | John I. Clark, Alton B. Eckert | 1987-02-03 |
| 4317700 | Method of fabrication of planar bubble domain device structures | Kunihide Tanaka, Michael T. Elliott, Sam Chung, James Pau, Linda Gray +3 more | 1982-03-02 |