CH

Christian Holzapfel

SG Schleifring Und Apparatebau Gmbh: 8 patents #6 of 49Top 15%
SG Schleifring Gmbh: 7 patents #1 of 29Top 4%
AA Audi Ag: 3 patents #476 of 2,982Top 20%
KG Knorr-Bremse Systeme Für Schienenfahrzeuge Gmbh: 2 patents #71 of 269Top 30%
📍 Lenting, DE: #3 of 45 inventorsTop 7%
Overall (All Time): #201,022 of 4,157,543Top 5%
21
Patents All Time

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
12257894 Drive device for a vehicle axle Andreas Weber, Harald GLOEDE, Frank RÖTHLINGSHÖFER, Korbinian WEBER 2025-03-25
11970052 Drive device for a vehicle axle of a vehicle 2024-04-30
11658449 Slipring with wear monitoring Matthias Hermann, Holger Steffens, Holger Häffner 2023-05-23
11217952 Slip ring module 2022-01-04
11171457 Holder for slip ring brushes Peter Heinbuch, Marvin Doll, Johannes Katz 2021-11-09
10734775 Slip ring with selective wear indication Holger Häffner 2020-08-04
10666004 Slipring with reduced contact noise Peter Heinbuch, Sascha Christmann, Michael Ritz 2020-05-26
10601272 Rotor for an electrical machine, electrical machine, in particular an asynchronous machine for a motor vehicle, and motor vehicle 2020-03-24
10505329 Method for making contact wires for sliprings 2019-12-10
10355561 Slipring with active cooling 2019-07-16
9882331 Low cost gold wire brushes Max Winkler 2018-01-30
9780513 Slip ring assembly and components thereof Norica Godja 2017-10-03
9640928 Slip ring brush having a galvanic multi-layer system 2017-05-02
9490600 High current slipring for multi fiber brushes 2016-11-08
9413127 Self-lubricating slipring 2016-08-09
9124055 Oscillation proof brushblock for sliprings Johannes Ott, Thomas Bernhardt, Michael Sergl 2015-09-01
9093808 Vibration-resistant slip ring device Peter Heinbuch, Johannes Ott 2015-07-28
8986053 Slip ring brush and holder for slip ring brush Matthias Hermann, Peter Heinbuch 2015-03-24
6062833 Spiral compressor, useful in particular to generate compressed air for rail vehicles Wilfried Zoerner, Robert Frank 2000-05-16
6017204 Spiral compressor, useful in particular to generate compressed air for rail vehicles Wilfried Zorner, Robert Frank 2000-01-25
4356830 Cleansing apparatus for test-vessels 1982-11-02