Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4332703 | Plastic bituminous compositions | Jan Lijzenga, Gerrit van Gooswilligen | 1982-06-01 |
| 4201812 | Bituminous carpet backing | Joannes C. A. Schellekens | 1980-05-06 |
TB
Thomas C. Blanken
Overall (All Time): #2,366,715 of 4,157,543Top 60%
2
Patents All Time