Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6449561 | Induction logging | Melis van der Horst | 2002-09-10 |
| 6098019 | Resistivity log correction method | Johannes Maria Vianney Antonius Koelman | 2000-08-01 |
RH
Richard Gerrit Hakvoort
Overall (All Time): #2,218,059 of 4,157,543Top 55%
2
Patents All Time