Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873488 | Induction logging sonde with metallic support having a coaxial insulating sleeve member | Thomas D. Barber, John F. Hunka | 1989-10-10 |
RC
Richard N. Chandler
Overall (1989): #66,390 of 140,708Top 50%
1
Patents 1989