Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5578926 | Locating system for finding magnetic objects in the ground including improved means for accurate correlation of measured magnetometer probe signals to probe positions | — | 1996-11-26 |
| 4950820 | Process for the hydrogenation of olefinic hydrocarbons in hydrocarbon mixtures containing tert.-alkyl alkyl ethers | Bernhard Schleppinghoff, Hans-Joachim Kramer | 1990-08-21 |
| 4804704 | Crosslinked organic resins containing SiO.sub.2 and sulphonic acid groups | Bernhard Schleppinghoff, Mathias Lux | 1989-02-14 |
| 4751343 | Process for the preparation of tertiary olefins | Bernhard Schleppinghoff | 1988-06-14 |
| 4431528 | Process for the hydrogenation of hydrocarbons | Bernhard Schleppinghoff, Herbert Tschorn | 1984-02-14 |