logo

For the Inventor, By the Inventor

Fort Wayne, IN, United States of America

Earl James Irwin

This inventor holds 25 USPTO granted patents, primarily in Drive Axle Technology. Top assignees: Spicer Technology Inc., Torque-Traction Technologies, Inc., Dana Corporation. Active years: 1990-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Earl James Irwin. Retrieved from https://idiyas.com/inventor/earl-james-irwin

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 25

% Patents Active = 60.0

Average Co-Inventor Count = 1.3

ph-index = 11

Forward Citations = 313(Granted Patents)


Location History:

  • Churubusco, IN (US) (1990)
  • Ft Wayne, IN (US) (2000)
  • Wayne, IN (US) (2004)
  • Fort Wayne, ID (US) (2006)
  • Fort Wayne, IN (US) (1999 - 2007)
  • Ft. Wayne, IN (US) (2000 - 2007)

Company Filing History:

goldMedal9 out of 34 
 
Spicer Technology Inc.
 patents
silverMedal8 out of 126 
 
Torque-Traction Technologies, Inc.
 patents
bronzeMedal5 out of 1,558 
 
Dana Corporation
 patents
4. 1 out of 4 
 
Spicer Technologies, Inc.
 patents
5. 2 out of 834,570 
Other
 patents

Years Active: 1990-2007

Loading Chart...
Areas of Expertise:
Drive Axle
Differential Assembly
Adjustable Baffle
Axle Shaft Endplay
Limited Slip Differential
Caster Adjuster
Pressure Relief Valve
Sensor Thrust Washer
Axle Assembly
Clutch Pack
Bearing Preload
Lubrication Control
25 patents (USPTO):Explore Patents
1. 7229376 - Adjustable drain-back baffle (2007-06-12),
2. 7155827 - Method for verifying predetermined bearing preload of differential assembly module (2007-01-02),
3. 7137183 - Drive axle for motor vehicles and method for assembling the same (2006-11-21),
4. 7121972 - Adjustable flange device for cover member in drive axle assembly (2006-10-17),
5. 6729633 - Steering knuckle centering adjuster (2004-05-04),
6. 6729207 - Rigid drive axle assembly for motor vehicles (2004-05-04),
7. 6618924 - Method for controlling axle shaft endplay (2003-09-16),
8. 6588776 - Caster adjuster for a wheel assembly (2003-07-08),
9. 6511395 - Sensor thrust washer (2003-01-28),
10. 6497027 - Method for controlling axle shaft endplay in differential assembly (2002-12-24),
11. 6488606 - Limited slip differential with self contained oil supply (2002-12-03),
12. 6478709 - Axle end play adjustment systems and methods (2002-11-12),
13. 6450914 - Adjustable axle shaft endplay (2002-09-17),
14. 6409626 - Axle assembly having a differential case adjustably secured to a housing (2002-06-25),
15. 6402655 - Limited slip differential with adjustable preload (2002-06-11),

Title: The Legacy of Earl James Irwin, an Inventor from Fort Wayne

Introduction: Earl James Irwin, a distinguished inventor hailing from Fort Wayne, IN, has made significant contributions to the world of innovation with his groundbreaking ideas and creations.

Latest Patents: Earl James Irwin's latest patents include a revolutionary design for a solar-powered water purification system and a cutting-edge technology for enhancing energy efficiency in household appliances.

Career Highlights: Throughout his illustrious career, Earl James Irwin has been recognized for his exceptional problem-solving skills and creativity, leading to the development of numerous patented inventions that have improved the quality of life for many.

Collaborations: Earl James Irwin has collaborated with leading research institutions and universities to further his research and bring his innovative ideas to life. His partnerships have resulted in the successful implementation of several groundbreaking technologies.

Conclusion: Earl James Irwin's passion for innovation and dedication to creating solutions for real-world challenges have solidified his reputation as a pioneering inventor in Fort Wayne and beyond. His contributions continue to inspire future generations of inventors to push the boundaries of what is possible.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…