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Pleasant Hills, PA, United States of America

John B Penn

Average Co-Inventor Count = 4.00

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 = 1

John B PennPuthenkovilakom Rajesh Raja (2 patents)John B PennWei Min Cheng (2 patents)John B PennGeorge Joseph Kutsek (2 patents)John B PennJohn B Penn (2 patents)Puthenkovilakom Rajesh RajaPuthenkovilakom Rajesh Raja (12 patents)Wei Min ChengWei Min Cheng (8 patents)George Joseph KutsekGeorge Joseph Kutsek (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Eastman Chemical Company (2 from 2,001 patents)


2 patents:

1. 8946365 - Low molecular weight polystyrene resin and methods of making and using the same

2. 8829105 - Low molecular weight polystyrene resin and methods of making and using the same

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as of
12/7/2025
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