Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4498333 | Carbon granule probe microphone for leak detection | — | 1985-02-12 |
| 4214226 | System for plotting subsoil structure and method therefor | Keshavaiyengar Y. Narasimhan, Robert Nathan | 1980-07-22 |