Growing community of inventors

Des Plaines, IL, United States of America

Carl E Klein

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 = 21

Carl E Klein ↔ Richard E LaSpesa (1 patent)Carl E KleinCarl E Klein (1 patent)Richard E LaSpesaRichard E LaSpesa (7 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. At&t Teletype Corporation (1 from 30 patents)


1 patent:

1. D294357 - 40 column printer cabinet

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1/12/2026
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