Inventor

GROTTKE STEFAN

DE5 patents

⚠️ This page may combine multiple inventors who share the name “GROTTKE STEFAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BENTELER AUTOMOBILTECHNIK GMBH

4 patents

US11040740B2Jun 22, 2021

BROCKHOFF FRANZ ULRICH

1 patent

US8733823B2May 27, 2014

Bumper system for a motor vehicle and method for energy dissipation in the event of a head-on collision

BROCKHOFF FRANZ ULRICH20 citations86

GROTTKE STEFAN

BENTELER AUTOMOBILTECHNIK GMBH

Sill and vehicle frame of a vehicle body and method of manufacturing a sill

Sill of a vehicle body, vehicle body and method of manufacturing a vehicle body

Crossmember for motor vehicle construction

Front-end structure of a motor vehicle

BROCKHOFF FRANZ ULRICH

Bumper system for a motor vehicle and method for energy dissipation in the event of a head-on collision