Inventor
HAEFNER DONALD
US10 patents
⚠️ This page may combine multiple inventors who share the name “HAEFNER DONALD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHAEFFLER KG
4 patentsUS7637238B2Dec 29, 2009
Hydraulic valve play compensating element
SCHAEFFLER KG4 citations60
US7380531B2Jun 3, 2008
Variable valve drive for changing the control timing of cam-actuated gas-exchange valves
SCHAEFFLER KG2 citations60
US7721696B2May 25, 2010
Cam follower for a valve drive of an internal combustion engine
SCHAEFFLER KG1 citations51
US7401584B2Jul 22, 2008
Adjustable engine
SCHAEFFLER KG0 citations39
SCHAEFFLER TECHNOLOGIES AG
3 patentsUS9988947B2Jun 5, 2018
Fast acting switching valve train system for valve deactivation
SCHAEFFLER TECHNOLOGIES AG2 citations70
US10400638B2Sep 3, 2019
Camshaft phaser arrangement for a concentrically arranged camshaft assembly
SCHAEFFLER TECHNOLOGIES AG0 citations50
US10557384B2Feb 11, 2020
Coupling for a camshaft phaser arrangement for a concentric camshaft assembly
SCHAEFFLER TECHNOLOGIES AG0 citations48