Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5186767 | Lithoplate and method for making same | Elwin L. Rooy, James R. Weaver, Douglas A. Granger, Raymond T. Richter, H. Gray Reravis, Jr. | 1993-02-16 |
| 4902353 | Method for making lithoplate | Elwin L. Rooy, James R. Weaver, Douglas A. Granger, Raymond T. Richter, H. Gray Reavis, Jr. | 1990-02-20 |
| 4818300 | Method for making lithoplate | Elwin L. Rooy, James R. Weaver, Douglas A. Granger, Raymond T. Richter, H. Gray Reavis, Jr. | 1989-04-04 |