Growing community of inventors

Santa Cruz, CA, United States of America

Gregory E Landreth

Average Co-Inventor Count = 2.25

ph-index = 3

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 = 145

Gregory E LandrethFred Italo Polito (2 patents)Gregory E LandrethJames B Robertson (1 patent)Gregory E LandrethEdmund J Morrissey, Iii (1 patent)Gregory E LandrethGregory E Landreth (3 patents)Fred Italo PolitoFred Italo Polito (22 patents)James B RobertsonJames B Robertson (6 patents)Edmund J Morrissey, IiiEdmund J Morrissey, Iii (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Plantronics, Inc. (3 from 738 patents)


3 patents:

1. D403327 - Convertible earhook headset

2. D394437 - Headband headset

3. 5259780 - Quick disconnect wiring connector

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as of
1/11/2026
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