Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7173242 | Method for determining whether a rock is capable of functioning as an oil reservoir | Keyu Liu, Joseph Stanley Kurusingal | 2007-02-06 |
| 6097027 | Identifying oil columns | Mark Lisk, Francis William Krieger | 2000-08-01 |
| 5969240 | Methods for determining irreducible water resistivity and estimating oil well reserves | Mark Lisk, Francis William Krieger | 1999-10-19 |
| 5543616 | Identifying oil well sites | Mark Lisk, Francis William Krieger | 1996-08-06 |