Haefner; Donald

Patent Applications and Registrations

Patent applications and USPTO patent grants for Haefner; Donald.The latest application filed is for "coupling for a camshaft phaser arrangement for a concentric camshaft assembly".

Company Profile

2.8.8

Haefner; Donald - Troy MI

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Coupling for a camshaft phaser arrangement for a concentric camshaft assembly Grant 10,557,384 - Burke , et al. Feb	2020-02-11
Coupling For A Camshaft Phaser Arrangement For A Concentric Camshaft Assembly App 20190368389 - Burke; Steven ; et al.	2019-12-05
Camshaft phaser arrangement for a concentrically arranged camshaft assembly Grant 10,400,638 - Poole , et al. Sep	2019-09-03
Camshaft Phaser Arrangement For A Concentrically Arranged Camshaft Assembly App 20190170027 - Poole; Kevin ; et al.	2019-06-06
Fast acting switching valve train system for valve deactivation Grant 9,988,947 - Haefner June 5, 2	2018-06-05
Fast Acting Switching Valve Train System For Valve Deactivation App 20170198610 - Haefner; Donald	2017-07-13
Roller lifter lubrication guide Grant 9,334,767 - Haefner , et al. May 10, 2	2016-05-10
Roller Lifter Lubrication Guide App 20150136053 - Haefner; Donald ; et al.	2015-05-21
Cam follower for a valve drive of an internal combustion engine Grant 7,721,696 - Evans , et al. May 25, 2	2010-05-25
Hydraulic valve play compensating element Grant 7,637,238 - Haefner , et al. December 29, 2	2009-12-29
Adjustable engine Grant 7,401,584 - Haefner July 22, 2	2008-07-22
Variable valve drive for changing the control timing of cam-actuated gas-exchange valves Grant 7,380,531 - Haefner , et al. June 3, 2	2008-06-03
Hydraulic valve play compensating element App 20080073608 - Haefner; Donald ; et al.	2008-03-27
Cam follower for a valve drive of an internal combustion engine App 20080022954 - Evans; Matthew ; et al.	2008-01-31
Adjustable Engine App 20070215088 - Haefner; Donald	2007-09-20
Variable valve drive for changing the control timing of cam-actuated gas-exchange valves App 20060219198 - Haefner; Donald ; et al.	2006-10-05

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