HL

Heinrich Leufen

AK Andreas Stihl Ag & Co. Kg: 17 patents #22 of 807Top 3%
F& Firma Andreas Stihl Ag &: 1 patents #3 of 25Top 15%
📍 Schwaikheim, DE: #6 of 65 inventorsTop 10%
Overall (All Time): #249,611 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
11997960 Hand-guided gardening, forestry and/or construction processing device and method for operating a hand-guided gardening, forestry and/or construction processing device Philippe Buerckel, Simon Klaiber, Alexander Haas 2024-06-04
10063165 Method and apparatus for the detection of the position of an operating switch for starting an electric motor Kay-Steffen Gurr, Gernot Liebhard, Jens Kloeker, Jochen Siller 2018-08-28
9366220 Method for operating an internal combustion engine of a hand-guided power tool Georg Maier, Jürgen Redecker, Alexander Klein, Erik Andresen 2016-06-14
9140204 Handheld work apparatus having an air-cooled combustion engine Ernst Gorenflo, Eberhard Schieber, Michael Harrer, Claus Naegele, Andreas Neubauer 2015-09-22
9068545 Method and device for providing electric energy for an engine control unit Ernst Gorenflo, Eberhard Schieber, Roland Schierling 2015-06-30
8833322 Handheld work apparatus having a control unit for an electric heating element Jörg Präger, David Fallscheer, Rolf Walter, Michael Link 2014-09-16
8667955 Handheld work apparatus having a control unit for operating an electric load Jörg Präger, David Fallscheer 2014-03-11
8428847 Ignition module having a bus line Franz Mandl, Eberhard Schieber, Georg Maier 2013-04-23
7974767 Method for detecting operating parameters of a power tool comprising an internal combustion engine Georg Maier, Wolfgang Layher, Mohamed Abou-Aly, Eberhard Schieber 2011-07-05
7894974 Method for operating a two-stroke engine Andreas Bähner, Andreas Lingen, Georg Maier, Stanislaw Cichon, Leo Kieβling 2011-02-22
7859124 Internal combustion engine with alternator Georg Maier, Eberhard Schieber, Ina Weimer, Mohamed Abou-Aly 2010-12-28
7816796 Hand-held power tool and method for operating a heating device of a hand-held power tool Rolf Walter, Fried Berkenkamp 2010-10-19
7809495 Portable hand-held power tool having a data connection for diagnostic purposes 2010-10-05
7538503 Hand-held power tool, in particular a trimmer or the like, having an electric drive motor Kai-Ulrich Machens, Markus Herzog 2009-05-26
7363910 Ignition circuit having a high-energy spark for an internal combustion engine Eberhard Schieber, Mohamed Abou-Aly, Hans Nickel, Heiko Rosskamp, Jorg Schlossarczyk 2008-04-29
7325528 Method of operating a single cylinder two-stroke engine Eberhard Schieber, Mohamed Abou-Aly, Hans Nickel, Heiko Rosskamp, Jorg Schlossarczyk +1 more 2008-02-05
7281501 Magnet wheel of an internal combustion engine Rainer Widmann, Markus Husges 2007-10-16
6232672 Hand-held work tool with a generator Rolf Walter 2001-05-15