Issued Patents All Time
Showing 101–108 of 108 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5466918 | Method and apparatus for image compression, storage, and retrieval on magnetic transaction cards | Richard N. Ellson, Bhavan Gandhi | 1995-11-14 |
| 5455902 | Method and apparatus for performing real-time computer animation | Richard N. Ellson, Marc Olano | 1995-10-03 |
| 5436970 | Method and apparatus for transaction card verification | Richard N. Ellson | 1995-07-25 |
| 5420705 | Secondary quantization of digital image signals | — | 1995-05-30 |
| 5377025 | Optimal color quantization for addressing multi-dimensional color calibration look-up-table | Kevin E. Spaulding, James R. Sullivan | 1994-12-27 |
| 5321751 | Method and apparatus for credit card verification | Richard N. Ellson | 1994-06-14 |
| 5214517 | Digital halftoning with correlated minimum visual modulation patterns | James R. Sullivan | 1993-05-25 |
| 4861140 | Method of making a thin lens | Richard D. Lucitte, Paul W. Melnychuck, Joseph J. Murray, James R. Sullivan | 1989-08-29 |