Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11268534 | Blower wheel and power tool with an internal combustion engine and a blower wheel | Andreas Wolf, Wolfgang Weissert, Volker Lempges, Helmut Zimmermann, Gunter Wolf +3 more | 2022-03-08 |
| 10717206 | Power saw system and cable assembly for a power saw | Markus Weinig, Harald Mang, Georg Heinzelmann, Martin Failenschmid, Benjamin Frey +1 more | 2020-07-21 |
| 10683148 | Tank filling device with vent for a liquid container | Roland Adam, Steffen Joos, Benjamin Wichtler, Klaus-Martin Uhl | 2020-06-16 |
| 10662855 | Handheld work apparatus | Benjamin Kurtis Friedrich | 2020-05-26 |
| 10344707 | Piston for a two-stroke engine operating with advanced scavenging and a two-stroke engine | Birger Loew | 2019-07-09 |
| 10240558 | Piston for a two-stroke engine working with advanced scavenging and a two-stroke engine | Birger Loew | 2019-03-26 |
| 9713881 | Handheld work apparatus having a tensioning device for a chain | Helmut Zimmermann | 2017-07-25 |
| 9694954 | Tank filling system | — | 2017-07-04 |
| 9272438 | Guide bar having a carbon fiber reinforced plastic insert | Helmar Amend, Christoph von Hiller, Alexander Fuchs, Christine Rominger, Matthias Schulz +1 more | 2016-03-01 |
| 9181864 | Work apparatus having a fuel pump | Helmut Zimmermann, Klaus-Martin Uhl | 2015-11-10 |
| 8869787 | Hand-operated implement comprising a cutting chain for cutting mineral and metal materials | Hannah Thölking, Horst Otterbach, Helmut Zimmermann, Jens Kreutzer | 2014-10-28 |
| 8813374 | Chain guard for a motor-driven chain saw and a carrying arrangement therefor | Peter Stahl, Helmut Zimmermann, Klaus-Martin Uhl, Friedrich Hollmeier | 2014-08-26 |