Growing community of inventors

Glenview, IL, United States of America

Joyce Ruth Krei

Average Co-Inventor Count = 4.00

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 = 6

Joyce Ruth KreiMartin Winn (3 patents)Joyce Ruth KreiRaj Kumar Razdan (3 patents)Joyce Ruth KreiHaldean Cloyce Dalzell (3 patents)Joyce Ruth KreiJoyce Ruth Krei (3 patents)Martin WinnMartin Winn (49 patents)Raj Kumar RazdanRaj Kumar Razdan (32 patents)Haldean Cloyce DalzellHaldean Cloyce Dalzell (11 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sharps Associates (3 from 17 patents)


3 patents:

1. 4007207 - Alkyl substituted-4-oxo-cyclopenta benzopyrans

2. 3992550 - Pharmaceutical compositions containing alryl substituted cyclopenta

3. 3946111 - Pharmaceutical compositions containing 1 or 2-mono and dialkyl

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as of
12/19/2025
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