Growing community of inventors

Cortlandt Manor, NY, United States of America

David H Johnson

Average Co-Inventor Count = 4.00

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 = 125

David H JohnsonFrederick J Damerau (1 patent)David H JohnsonMartin C Buskirk, Jr (1 patent)David H JohnsonMarguerite Raaen (1 patent)David H JohnsonDavid H Johnson (1 patent)Frederick J DamerauFrederick J Damerau (10 patents)Martin C Buskirk, JrMartin C Buskirk, Jr (5 patents)Marguerite RaaenMarguerite Raaen (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. International Business Machines Corporation (1 from 164,108 patents)


1 patent:

1. 6424997 - Machine learning based electronic messaging system

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12/4/2025
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