JH

Johann Hoell

HM Hoffman & Co. Elektrokohle Gesellschaft M.B.H: 5 patents #1 of 5Top 20%
HA Hoffmann & Co. Elektrokohle Ag: 2 patents #3 of 11Top 30%
KD Kolektor Group D.O.O.: 1 patents #5 of 17Top 30%
📍 Hallstatt, AT: #2 of 3 inventorsTop 70%
Overall (All Time): #662,531 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
6684485 Method of producing a flat commutator and a flat commutator produced according to said method Jose Potocnik, Marjan Drmota, Ludvik Kumar, Gerhard Bachauer, Herbert Scheutz 2004-02-03
5630973 Process for producing sliding bodies for electric collectors Herbert Grabner 1997-05-20
5285126 Collector shoe and method for producing it Peter Hoffmann 1994-02-08
5263562 Carbon brush for collector Peter Hoffmann, Herbert Grabner, Klaus Reiser 1993-11-23
5244065 Pantograph slipper for current collectors Sven Bartels 1993-09-14
5193656 Collector shoe for collector and process for producing it Peter Hoffmann, Herbert Grabner, Klaus Reiser 1993-03-16
5189903 Sliding strip for collector with rupture detection device Peter Hoffmann, Herbert Grabner, Klaus Reiser 1993-03-02
5152380 Collector shoe for collector and process for producing it Peter Hoffmann, Herbert Grabner, Klaus Reiser 1992-10-06