Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4556884 | Depth dependent multiple logging system | Anthony M. Dienglewicz, Raman Viswanathan, Jorg A. Angehrn | 1985-12-03 |
| 4346593 | Well logging correction method and apparatus | Raman Viswanathan, Jorg A. Angehrn | 1982-08-31 |
| 4297879 | Well logging correlation method and apparatus | Ronald E. Diederich, Jorg A. Angehrn | 1981-11-03 |