Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864925 | Simplified lithography using ink and water admixtures | Eugene M. Van Kanegan, Frank Doyle | 1989-09-12 |
| 4862799 | Copper coated anodized aluminum ink metering roller | Stanley H. Hycner, Shem-Mong Chou | 1989-09-05 |