Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7412099 | System and method for controlling compression ratio and image quality of binary images | Elizabeth D. Wayman | 2008-08-12 |
| 7218784 | Method and apparatus for controlling image quality and compression ratios | Norman W. Zeck, William E. Nelson | 2007-05-15 |
| 6804401 | Method for compressing digital documents with control of image quality subject to multiple compression rate constraints | William E. Nelson, James M. Sweet | 2004-10-12 |
| 5825312 | DX JPEG Huffman decoder | — | 1998-10-20 |
| 5450115 | Apparatus for ionographic printing with a focused ion stream | Richard F. Bergen, Robert W. Gundlach, Peter A. Crean, Joseph A. Chizuk, Jr. | 1995-09-12 |
| 4520455 | Printing system | Peter A. Crean, Carolyn P. Grow | 1985-05-28 |
| 4476542 | Printing system | Peter A. Crean, Carolyn P. Grow | 1984-10-09 |
| 4328426 | Filter for image pixels | — | 1982-05-04 |