Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8756999 | Ultrasonic probe | Alfred Graff, Karl-Heinz Breckel, Jochen Berkemeier | 2014-06-24 |
| 8344725 | Device for nondestructive testing of pipes | Sven Gwildies, Michael Kaack, Alfred Graff, Ashraf Koka, Stefan Nitsche | 2013-01-01 |
| 6775024 | Method for selectively detecting and reading a character string | — | 2004-08-10 |
| 6382149 | Valve timing system for an internal combustion engine | Michael Bidlingmaier, Johannes Hoehl | 2002-05-07 |
| 6145485 | Variable valve operating mechanism for an internal combustion engine | Michael Bidlingmaier, Stefan Foester | 2000-11-14 |
| 6012423 | Hypocycloidal crank mechanism for piston engines, engines especially for opposed-cylinder internal combustion engines | — | 2000-01-11 |
| 5988121 | Piston engine having a hypocycloidal piston stroke transmission with a Watt's guide, particularly with pistons in opposed cylinders | Johannes Hoehl | 1999-11-23 |
| 5943987 | Reciprocating piston engine with adjacent cylinders in the crankshaft direction in an engine case | — | 1999-08-31 |
| 5899180 | Variable valve gear, particularly for internal-combustion engines | — | 1999-05-04 |
| 5785029 | Reciprocating piston engine, especially internal combustion engine, with hypcycloidal shaft drive | — | 1998-07-28 |
| 5732669 | Valve control for an internal combustion engine | Johannes Hoehl | 1998-03-31 |
| 5727513 | Hypocycloidal crank transmission for piston engines, particularly internal-combustion engines | — | 1998-03-17 |
| 5421203 | Modifiable electrodynamic ultrasonic transducer | Alfred Graff, Hans-Jurgen Rohde | 1995-06-06 |
| 5304973 | Coil for electromagnetically actuating a switching device | Helmuth Baldauf, Franz Mende, Norbert Zimmermann | 1994-04-19 |
| 4509815 | Test head mounting for single or multiple test heads | Dieter Lather | 1985-04-09 |
| 4366712 | Ultrasonic testing of sheet and plate stock | Hans-Jurgen Bathmann, Heinz Schneider | 1983-01-04 |
| 4333347 | Stimulating electro-acoustical transducers | Raimund Lang, Jorg Quittkat, Dieter Lather | 1982-06-08 |
| 4222167 | Method of manufacturing a contact bridge | Heinrich Hassler, Joachim Grosse, Joachim Hannich | 1980-09-16 |