Growing community of inventors

LATE OF Pearl River, NY, United States of America

Gretchen Ellen Wiegand, Deceased

Average Co-Inventor Count = 5.00

ph-index = 2

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 = 8

Gretchen Ellen Wiegand, Deceased ↔ Sidney Robert Safir (2 patents)Gretchen Ellen Wiegand, Deceased ↔ William J Fanshawe (2 patents)Gretchen Ellen Wiegand, Deceased ↔ Lantz S Crawley (2 patents)Gretchen Ellen Wiegand, Deceased ↔ By Earle Cooley, Executor (2 patents)Gretchen Ellen Wiegand, DeceasedGretchen Ellen Wiegand, Deceased (2 patents)Sidney Robert SafirSidney Robert Safir (22 patents)William J FanshaweWilliam J Fanshawe (16 patents)Lantz S CrawleyLantz S Crawley (14 patents)By Earle Cooley, ExecutorBy Earle Cooley, Executor (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. American Cyanamid Company (2 from 3,580 patents)


2 patents:

1. 3997530 - Substituted enaminoketones

2. 3997530 - Substituted enaminoketones

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as of
12/16/2025
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