Growing community of inventors

Belmont, MA, United States of America

Tracy L Johnnson

Average Co-Inventor Count = 3.00

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 = 7

Tracy L Johnnson ↔ James R Rasmussen (1 patent)Tracy L Johnnson ↔ Gary D Barsomian (1 patent)Tracy L JohnnsonTracy L Johnnson (1 patent)James R RasmussenJames R Rasmussen (8 patents)Gary D BarsomianGary D Barsomian (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Genzyme Corporation (1 from 787 patents)


1 patent:

1. 5238821 - Endo F-free PNGase

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12/19/2025
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