Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8100234 | Manually guided implement and method of producing a brake mechanism of a manually guided implement | Viktoria Schmidt | 2012-01-24 |
| 6880248 | Motor driven implement | Wolfgang Weissert | 2005-04-19 |
| 5407496 | Method of manufacturing a guide for driven chains | Udo Bartmann | 1995-04-18 |
| 5386756 | Saw chain for a motor-driven chain saw | Norbert Apfel, Hans-Joachim Beyer | 1995-02-07 |
| 5088345 | Composite crankshaft for a two-stroke engine | Ralf-Rainer Kemmler, Andreas Decool | 1992-02-18 |
| 4961263 | Guide bar of solid material for the saw chain of a motor chain saw | Norbert Apfel | 1990-10-09 |
| 4903410 | Guide bar for a chain saw | Klaus Wieninger, Walter Sattelmaier, Wilfried Noll, Norbert Apfel | 1990-02-27 |
| 4817291 | Motor-driven chain saw having an improved handle | — | 1989-04-04 |
| 4794696 | Guide bar for a motor-driven chain saw | Norbert Apfel, Ralf-Rainer Kemmler | 1989-01-03 |
| 4768289 | Cobalt base alloy coating for a guide bar of a chain saw | Norbert Apfel, Wilfried Noll, Horst Doren, Klaus-Dieter Wernicke | 1988-09-06 |
| 4693007 | Guide bar for a chain saw | Norbert Apfel, Wilfried Noll | 1987-09-15 |
| 4635364 | Braking arrangement for a chain saw | Wilfried Noll, Konrad Ehmann, Wolfgang C. Dorner, Gunter Dietzsch | 1987-01-13 |