Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4711303 | Method and means for determining the subsurface position of a blowing well with respect to a relief well | Thijs Koeling, Willem Broekhuizen | 1987-12-08 |
BL
Bernd C. Lehr
Overall (All Time): #3,986,797 of 4,157,543Top 100%
1
Patents All Time