Inventor
MARGRAF CHRISTOPH
DE23 patents
⚠️ This page may combine multiple inventors who share the name “MARGRAF CHRISTOPH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ZAHNRADFABRIK FRIEDRICHSHAFEN
21 patentsUS7954615B2Jun 7, 2011
Device for actuating a multiplate clutch in a transmission
ZAHNRADFABRIK FRIEDRICHSHAFEN9 citations83
US10221922B2Mar 5, 2019
Multi-speed automatic transmission
ZAHNRADFABRIK FRIEDRICHSHAFEN3 citations73
US10161509B2Dec 25, 2018
Hydraulic control device for an automatic transmission
ZAHNRADFABRIK FRIEDRICHSHAFEN4 citations73
US9803723B2Oct 31, 2017
Multi-step automatic gearbox
ZAHNRADFABRIK FRIEDRICHSHAFEN3 citations73
US11807099B2Nov 7, 2023
Rotor support for an electrical machine
ZAHNRADFABRIK FRIEDRICHSHAFEN2 citations72
US10527108B2Jan 7, 2020
Clutch assembly
ZAHNRADFABRIK FRIEDRICHSHAFEN2 citations72
US10995827B2May 4, 2021
Multispeed transmission
ZAHNRADFABRIK FRIEDRICHSHAFEN2 citations71
US11261943B2Mar 1, 2022
Planet-type multi-stage transmission for a bicycle or pedelec
ZAHNRADFABRIK FRIEDRICHSHAFEN4 citations70
US11962226B2Apr 16, 2024
Rotor support for an electrical machine
ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations62
US12503199B2Dec 23, 2025
Assembly for actuating a shifting element of a transmission
ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations57
US12434788B2Oct 7, 2025
Bottom-bracket gear
ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations57
US11708888B2Jul 25, 2023
Shaft for a motor vehicle transmission
ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations53
US9470274B2Oct 18, 2016
Claw shifting element comprising a sliding sleeve for an automatic transmission of a motor vehicle
ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations51
US11193559B2Dec 7, 2021
Automatic transmission
ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations50
US10955031B2Mar 23, 2021
Multispeed transmission
ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations50
US10480641B2Nov 19, 2019
Assembly for blocking and enabling a shifting position of a shifting element
ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations50
US12291304B2May 6, 2025
Gear set assembly and bicycle gearing system
ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations46
US11359715B2Jun 14, 2022
Transmission shaft, transmission, and motor vehicle drivetrain
ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations43
US10876600B2Dec 29, 2020
Multispeed transmission
ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations40
US10759265B2Sep 1, 2020
Planetary automatic transmission
ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations40
US9726233B2Aug 8, 2017
Hydraulic system for an automatic transmission
ZAHNRADFABRIK FRIEDRICHSHAFEN0 citations39