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For the Inventor, By the Inventor

Tustin, CA, United States of America

Lawrence Crane

This inventor holds 2 USPTO granted patents. Top assignees: American Hoechst Corporation, Morton Thiokol Inc.. Active years: 1986-1990.

USPTO Granted Patents = 2

% Patents Active = 100.0

Average Co-Inventor Count = 3.7

ph-index = 2

Forward Citations = 29(Granted Patents)


Company Filing History:

goldMedal1 out of 233 
 
American Hoechst Corporation
 patents
silverMedal1 out of 212 
 
Morton Thiokol Inc.
 patents

Years Active: 1986-1990

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2 patents (USPTO):Explore Patents
1. 4894314 - Photoinitiator composition containing bis ketocoumarin dialkylamino (1990-01-16),
2. 4588670 - Light-sensitive trisester of O-quinone diazide containing composition (1986-05-13),

Title: Top Inventor in Tustin, California

Introduction: David B. Chang is a prominent inventor based in Tustin, California. He is recognized for his significant contributions to various fields through his innovative patents.

Latest Patents: David has recently been awarded several patents that showcase his inventive prowess and creativity.

Career Highlights: Throughout his career, David has achieved numerous milestones that highlight his expertise and dedication to innovation.

Collaborations: He has collaborated with various organizations and individuals, further enhancing his impact in the field of invention.

Conclusion: David B. Chang continues to be a leading figure in the world of innovation, inspiring others with his work and achievements.

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