Growing community of inventors

Sugarland, TX, United States of America

Charles D Hultgren

Average Co-Inventor Count = 2.86

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 523

Charles D Hultgren ↔ James L Schlemmer (1 patent)Charles D Hultgren ↔ Donald W Long (1 patent)Charles D Hultgren ↔ Dan G Luce (1 patent)Charles D Hultgren ↔ John C Leonardo, Jr (1 patent)Charles D Hultgren ↔ Lindsay Gupton (1 patent)Charles D HultgrenCharles D Hultgren (2 patents)James L SchlemmerJames L Schlemmer (3 patents)Donald W LongDonald W Long (1 patent)Dan G LuceDan G Luce (1 patent)John C Leonardo, JrJohn C Leonardo, Jr (1 patent)Lindsay GuptonLindsay Gupton (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Texas Microsystems, Inc. (2 from 9 patents)


2 patents:

1. 5325519 - Fault tolerant computer with archival rollback capabilities

2. D345964 - Computer system unit

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as of
12/14/2025
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