Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5662554 | Neck exercise device | — | 1997-09-02 |
| 5517880 | Bottom die for a stamping tool for producing cardboard blanks | — | 1996-05-21 |
| 5498162 | Method for demonstrating a lifting technique | — | 1996-03-12 |
| 5319117 | Process for the sulfonation of unsaturated fatty acid glycerol esters | Bernd Fabry, Hermann Anzinger | 1994-06-07 |
| 5271033 | Induction furnace for melting and casting substances in a nonreactive atmosphere | Daniel Bethge, Alfred Henn, Hans-Johann Kemmer, Otto W. Stenzel | 1993-12-14 |
| 4988091 | Elbow and forearm rehabilitation device | — | 1991-01-29 |
| 4936551 | Fatty acid polyoxyalkyl ester sulfonates, a process for their production and their use as surfactants | Ansgar Behler, Robert Piorr | 1990-06-26 |
| 4893572 | Grain drill planting depth control | — | 1990-01-16 |
| 4217962 | Hydraulically operated grade scraper | — | 1980-08-19 |