Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870580 | Compressional/shear wave separation in vertical seismic profiling | Michael L. Oristaglio | 1989-09-26 |
SL
Stephen W. Lang
Overall (1989): #55,264 of 140,708Top 40%
1
Patents 1989