Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6004523 | Process for abating NO.sub.x emissions from a manufacturing stream | George Martin Weber, Herbert Kuchong Chen | 1999-12-21 |
| 5958174 | Manufacture of telephone debit cards | E. Douglas Ramsberg, Gerald C. Krahn, Jeffrey S. Walter, Ralph F. Irelan, John L. Wantz | 1999-09-28 |
| 5650209 | Manufacture of telephone debit cards | E. Douglas Ramsburg, Gerald C. Krahn, Jeffrey S. Walter, Ralph F. Irelan, John L. Wantz | 1997-07-22 |