Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4285140 | Dewatering and upgrading low rank coal by a two-step hydrothermal treatment | Herman P. Ruyter, Josefus W. van Breugel | 1981-08-25 |
LR
Leopold van Raam
Overall (All Time): #4,095,282 of 4,157,543Top 100%
1
Patents All Time