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Merion, PA, United States of America

John R Williams

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 = 28

John R WilliamsMagid A Abou-Gharbia (2 patents)John R WilliamsArthur G Schwartz (2 patents)John R WilliamsMarvin Louis Lewbart (2 patents)John R WilliamsAnn R Swern (1 patent)John R WilliamsDaniel Swern, Deceased (1 patent)John R WilliamsJohn R Williams (2 patents)Magid A Abou-GharbiaMagid A Abou-Gharbia (116 patents)Arthur G SchwartzArthur G Schwartz (14 patents)Marvin Louis LewbartMarvin Louis Lewbart (12 patents)Ann R SwernAnn R Swern (1 patent)Daniel Swern, DeceasedDaniel Swern, Deceased (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Research Corporation Technologies, Inc. (2 from 366 patents)


2 patents:

1. 5804576 - Derivatives of 5-androsten-17-ones and 5-androstan-17-ones

2. 5714481 - Derivatives of 5-androsten-17 ones and 5-androstan-17-ones

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as of
1/10/2026
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