Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5821196 | Thermally-responsive record material | Mary Ellen Schulz | 1998-10-13 |
| 5668080 | Thermally-responsive record material | Mary Ellen Schulz | 1997-09-16 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5821196 | Thermally-responsive record material | Mary Ellen Schulz | 1998-10-13 |
| 5668080 | Thermally-responsive record material | Mary Ellen Schulz | 1997-09-16 |