Growing community of inventors

Del Mar, CA, United States of America

Erwin Caldwell Handley, Jr

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 = 21

Erwin Caldwell Handley, JrPaul Philip Brown (1 patent)Erwin Caldwell Handley, JrJens Ole Sorensen (1 patent)Erwin Caldwell Handley, JrArthur Lawrence Gruen (1 patent)Erwin Caldwell Handley, JrErwin Caldwell Handley, Jr (1 patent)Paul Philip BrownPaul Philip Brown (26 patents)Jens Ole SorensenJens Ole Sorensen (19 patents)Arthur Lawrence GruenArthur Lawrence Gruen (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Gruhan Technologies, Inc. (1 from 1 patent)


1 patent:

1. 6217514 - Laryngoscope

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12/9/2025
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