Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5293434 | Technique for use in a transform coder for imparting robustness to compressed image data through use of global block transformations | Ephraim Feig, William B. Pennebaker | 1994-03-08 |
| 5176947 | Electroerosion printing plates | Ali Afzali-Ardakani, Mukesh Desai, Jahn P. Hoekstra, Eva E. Simonyi | 1993-01-05 |
| 5084331 | Electroerosion recording medium of improved corrosion resistance | Ali Afzali-Ardakani | 1992-01-28 |
| 4915519 | Direct negative from resistive ribbon | Ali Afzali-Ardakani, Mukesh Desai | 1990-04-10 |
| 4894279 | Electroerosion print media having protective coatings modified with organotitanium reagents | Krishna G. Sachdev, Mitchell S. Cohen | 1990-01-16 |
| 4885786 | Method for enlarging an image stored in run representation form | Karen L. Anderson, William B. Pennebaker | 1989-12-05 |
| 4836105 | Direct negative and offset master production using thermal liftoff | Bradford J. Factor, Jan-Pieter Hoekstra | 1989-06-06 |
| 4836106 | Direct offset master by resistive thermal printing | Ali Afzali-Ardakani | 1989-06-06 |
| 4830909 | Scratch resistant recording materials for electroerosion printing comprising cross-linked polymer base layer | Mitchell S. Cohen, Krishna G. Sachdev, John C. S. Shen | 1989-05-16 |
| 4810119 | Resistive ribbon for high resolution printing | Ali Afzali-Ardakani, Ronald T. Cannavaro, Walter Crooks, Mukesh Desai, Jean-Piet Hoekstra +1 more | 1989-03-07 |
| 4800397 | Metal transfer to form printing master plate or printed circuit board | Ali Afzali-Ardakani, Mukesh Desai, Bradford J. Factor, Jan-Pieter Hoekstra | 1989-01-24 |
| 4678701 | Resistive printing ribbon having improved properties | Ali Afzali-Ardakani, Krishna G. Sachdev | 1987-07-07 |
| 4668995 | System for reproducing mixed images | Yi-Hsin Chen, Frederick C. Mintzer | 1987-05-26 |
| 4617579 | Hydrophilic protective coatings for electroerosion printing | Krishna G. Sachdev, Ali Afzali-Ardakani, Mitchell S. Cohen | 1986-10-14 |
| 4596479 | Dot matrix printer | Eric G. Lean, Samuel C. Tseng, Han C. Wang | 1986-06-24 |
| 4596733 | Electroerosion recording material with polyorganosiloxane overlayer | Mitchell S. Cohen, Krishna G. Sachdev, William D. Weber | 1986-06-24 |
| 4568977 | On-chip CCD realization of the Laplacian operator for image signal processing | Savvas G. Chamberlain, Gene D. Rohrer | 1986-02-04 |
| 4567490 | Electroerosion recording medium of improved lubricity | Ali Afzali-Ardakani, Mitchell S. Cohen, Krishna G. Sachdev | 1986-01-28 |
| 4554562 | Scratch resistant recording materials for electroerosion printing not requiring a lubricant overcoat | Ali Afzali-Ardakani, Mitchell S. Cohen, Krishna G. Sachdev | 1985-11-19 |
| 4550061 | Electroerosion printing media using depolymerizable polymer coatings | Krishna G. Sachdev, Stephen A. Shear, Mitchell S. Cohen | 1985-10-29 |
| 4532651 | Data filter and compression apparatus and method | William B. Pennebaker | 1985-07-30 |
| T105002 | Erosion process for generation of offset masters | Ari Aviram, John G. Cahill, Peter S. Hauge | 1985-01-01 |
| 4268368 | Electrophoretical method for selectively reinking resistive ribbon thermal transfer printing ribbons | Ari Aviram, Lawrence Kuhn | 1981-05-19 |
| 4264921 | Apparatus for color or panchromatic imaging | Eugene S. Schlig, James M. White | 1981-04-28 |
| 4253775 | Apparatus for re-inking a ribbon in a thermal transfer printing system | Walter Crooks | 1981-03-03 |