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For the Inventor, By the Inventor

Wichita, KS, United States of America

William J Steffes

This inventor holds 4 USPTO granted patents. Top assignees: Coleman Outdoor Products, Inc., The Coleman Company, Inc.. Active years: 1985-1991.

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 4

Forward Citations = 312(Granted Patents)


Company Filing History:

goldMedal3 out of 11 
 
Coleman Outdoor Products, Inc.
 patents
silverMedal1 out of 489 
 
The Coleman Company, Inc.
 patents

Years Active: 1985-1991

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4 patents (USPTO):Explore Patents
1. 5064088 - Picnic cooler with lid having integrally molded hinge (1991-11-12),
2. D309239 - Picnic cooler (1990-07-17),
3. 4889257 - Container with multiple position lid (1989-12-26),
4. 4515421 - Multiple use shelf for cooler (1985-05-07),
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