Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4337969 | Extension member for well-logging operations | Pierre C. Escaron | 1982-07-06 |
| 4325196 | Multilayer identification cards with relief-like surface | Wolfgang Gauch, Yahya Haghiri-Tehrani | 1982-04-20 |
| 4307899 | Identification card with hallmarks adapted to be inspected by transmitted and incident light and a process for the production thereof | — | 1981-12-29 |
| 4298158 | Packaging element for packaging sheet material | Yahya Haghiri-Tehrani | 1981-11-03 |
| 4278722 | Multilayer edge sealed record carrier | Yahya Haghiri-Tehrani, Wolfgang Gauch | 1981-07-14 |
| 4269063 | Downhole force measuring device | Pierre C. Escaron | 1981-05-26 |
| 4267727 | Pressure and temperature compensation means for a downhole force measuring device | — | 1981-05-19 |
| 4254338 | Determination of temperature distributions on awkwardly located or low-access surfaces | Otto Abel, Hans-Josef Giertz, Werner Eisenhut, Bhubaneswar Sarangi, Gunter Serwatzky | 1981-03-03 |
| 4208231 | Method of making multilayer edge-sealed record carrier | Yahya Haghiri-Tehrani, Wolfgang Gauch | 1980-06-17 |