U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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Examiner: Chang, Ching


Primary examiner statistics: 591 patents; average approval time: 591 days
Assistant examiner statistics: 352 patents; average approval time: 645 days

Patents as Primary Examiner (view all)

Patent No. Patent Title:
8186317 Hydraulic fluid passage with particle gettering magnet field of t...
8181612 Variable valve timing apparatus and control method therefor
8181614 Internal combustion engine and vehicle incorporating same
8176886 Camshaft adjusting device
8171904 Valve timing control apparatus for internal combustion engine
8171901 Internal combustion engine with variable valve gear
8171900 Engine including hydraulically actuated valvetrain and method of ...
8166936 Valve timing adjusting apparatus
8166935 Control system of internal combustion engine
8161930 Camshaft for a variable lift valve train of an internal combustio...
8161928 Cylinder head cover
8156906 Valve timing controller
8156909 End pivot valve train
8151749 Valve opening arrangement and method
8151752 Deactivating hydraulic lash adjuster for oriented mounting in an ...
8146547 Variable valve actuator with a pneumatic booster
8146548 Continuously variable valve lift device and operation logic there...
8146550 Variable valve timing control apparatus for internal combustion e...
8141529 Valve timing control apparatus
8136493 Lash adjuster
8136494 Lifter guide
8136496 Valve rotator assembly
8132550 Roller bearing, camshaft support structure, and internal combusti...
8132549 Reciprocating piston internal combustion engine and method for de...
8127728 Vane-type cam phaser having dual rotor bias springs
8127725 Engine with hydraulic variable valve timing
8127729 Valve timing control apparatus
8127727 Variable valve actuating mechanism with summation cam
8122862 Engine including cylinder deactivation assembly and method of con...
8113159 Camshaft phaser and drive adapter for a concentric camshaft
8113163 Concentric camshaft and method of assembly
8109249 Valve control for a gas exchange valve in an internal combustion ...
8104439 Camshaft adjuster
8104441 Cam follower for a valve drive of an internal combustion engine
8104443 Helical cam device and method
8100100 Valve cover housing for internal combustion engines
8096271 System and method for determining a camshaft position in a variab...
8096275 Camshaft having a tuned mass damper
8091522 Variable valve driving device
8087391 Apparatus and methodology for rocker arm assembly

Patents as Assistant Examiner (view all)

Patent No. Patent Title:
7178489 Variable valve system of internal combustion engine and hydraulic...
7146953 Mechanical valve play compensation element for a valve drive on a...
7146949 Valve control apparatus
7143729 Valve timing regulating apparatus with improved phase control res...
7140334 Valve train for internal combustion engine
7137367 Control apparatus and control method for internal combustion engi...
7137368 Device for variable actuation of the gas exchange valves in inter...
7137369 VCT closed-loop control using a two-position on/off solenoid
7137372 Cylinder head cover
7137370 Gearbox comprising two rotatable disks which are arranged inside ...
7134408 Device for the control of gas exchange valves
7134409 Deposit removal for internal combustion engine
7128032 Electromagnetic actuator and control
7124722 Remote variable camshaft timing control valve with lock pin contr...
7124723 Valve mechanism for internal combustion engine
7121241 Valve control system including deactivating rocker arm
7121238 Intake valve control system and method for internal combustion en...
7114474 Tensioner lifter mounting structure for V-engine
7111596 Electromechanical operator for a valve of an internal combustion ...
7111600 Variable valve-stroke controls
7111597 Valve deactivator latching assembly
7107953 Valve gear of an internal combustion engine
7107945 Electromagnetically driven valve control system and method
7107948 Engine system and vehicle
7100556 Variable valve timing controller
7100555 Valve timing controller
7100553 Actuator for valve lift control device having cam mechanism
7096837 Valve train of an internal combustion engine
7093575 Pin housing sub-assembly for an hydraulic valve lifter
7093571 Internal combustion engine
7089897 Electrically driven camshaft adjuster
7089899 Stamped two-step rocker arm component
7089900 Hydraulic lash adjuster and improved method of assembly thereof
7086360 Assembly and torsional stop device for roller tappets of a drive ...
7082912 System and method for controlling engine valve lift and valve ope...
7082911 Valve-driving system and method for internal combustion engine, a...
7080616 Cylinder head assembly for an internal combustion engine with a c...
7069887 Engine valve actuation system
7069889 Camshaft, especially for an internal combustion engine of a motor...
7069890 Valve train device for an engine
 
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