Growing community of inventors

West Carmel, IN, United States of America

David A Johnson

Average Co-Inventor Count = 5.00

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 = 0

David A JohnsonYutaka Kanda (1 patent)David A JohnsonShiro Akinaga (1 patent)David A JohnsonMitsunobu Hara (1 patent)David A JohnsonTimothy S Powers (1 patent)David A JohnsonDavid A Johnson (1 patent)Yutaka KandaYutaka Kanda (64 patents)Shiro AkinagaShiro Akinaga (40 patents)Mitsunobu HaraMitsunobu Hara (10 patents)Timothy S PowersTimothy S Powers (10 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kyowa Hakko Kogyo Co., Ltd. (1 from 730 patents)


1 patent:

1. 6407087 - UCF116 derivatives

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1/3/2026
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