Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672410 | Embossed metallic leafing pigments | Richard G. Miekka, Richard M. Thomas, James P. Rettker, Karl Josephy | 1997-09-30 |
| 5650248 | Process for making machine readable images | Richard G. Miekka, Richard M. Thomas, James P. Rettker, Karl Josephy | 1997-07-22 |
| 5624076 | Process for making embossed metallic leafing pigments | Richard G. Miekka, Richard M. Thomas, James P. Rettker, Karl Josephy | 1997-04-29 |