Growing community of inventors

Cambridge, MA, United States of America

Charles Lee Isbell

Average Co-Inventor Count = 2.00

ph-index = 1

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 = 240

Charles Lee IsbellJonathan Isaac Helfman (1 patent)Charles Lee IsbellCharles Lee Isbell (1 patent)Jonathan Isaac HelfmanJonathan Isaac Helfman (5 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. At+t Corp. (1 from 4,208 patents)


1 patent:

1. 6396513 - Electronic message sorting and notification system

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12/16/2025
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