Growing community of inventors

La Jolla, CA, United States of America

L David Engel

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 = 105

L David Engel ↔ David Giuliani (1 patent)L David EngelL David Engel (1 patent)David GiulianiDavid Giuliani (19 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Optiva, Inc. (1 from 27 patents)


1 patent:

1. 5305492 - Brush element for an acoustic toothbrush

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as of
12/26/2025
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