Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4201404 | Pressure-sensitive marking materials | Jack W. Charbonneau, Richard S. Law, Willis J. Ludwig | 1980-05-06 | $24,766,000 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4201404 | Pressure-sensitive marking materials | Jack W. Charbonneau, Richard S. Law, Willis J. Ludwig | 1980-05-06 | $24,766,000 |