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Dwight, IL, United States of America

Norval J Wiemken

USPTO Granted Patents = 10

Average Co-Inventor Count = 3.0

ph-index = 7

Forward Citations = 96(Granted Patents)

Company Filing History:

10 out of 9,440

Caterpillar Inc.

Years Active: 1996-2007

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7278593 - Common rail fuel injector (2007-10-09),

2. 7077381 - Desensitizing armature air gap to component distortion in a fuel injector (2006-07-18),

3. 6955114 - Three way valve and electro-hydraulic actuator using same (2005-10-18),

4. 6951204 - Hydraulic fuel injection system with independently operable direct control needle valve (2005-10-04),

5. 6431472 - Fuel injector nozzle with outwardly opening check valve (2002-08-13),

6. 5901686 - Fluid seal for cyclic high pressures within a fuel injector (1999-05-11),

7. 5871155 - Hydraulically-actuated fuel injector with variable rate return spring (1999-02-16),

8. 5870995 - Space saving high pressure fluid supply clamp for a fuel injector (1999-02-16),

9. 5682861 - Fluid seal for cyclic high pressures within a fuel injection (1997-11-04),

10. 5499612 - Dual-function clamping assembly adapted for a hydraulically-actuated (1996-03-19),

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