Growing community of inventors

Edina, MN, United States of America

D Johan Carlson

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 = 3

D Johan Carlson ↔ Randall Wayne Roberts (1 patent)D Johan Carlson ↔ Lawrence T Hagen (1 patent)D Johan Carlson ↔ Margaret V Nilson (1 patent)D Johan CarlsonD Johan Carlson (1 patent)Randall Wayne RobertsRandall Wayne Roberts (19 patents)Lawrence T HagenLawrence T Hagen (16 patents)Margaret V NilsonMargaret V Nilson (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Blue-gear, Inc. (1 from 3 patents)


1 patent:

1. D698445 - Earpiece

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as of
12/6/2025
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