Growing community of inventors

Langhorne, PA, United States of America

Janis C Stevenson

Average Co-Inventor Count = 3.64

ph-index = 4

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 = 59

Janis C StevensonHsing-Yeh Parker (4 patents)Janis C StevensonMorris C Wills (3 patents)Janis C StevensonJames Szkolnick Kempner (3 patents)Janis C StevensonJudith L Allison (3 patents)Janis C StevensonJanis C Stevenson (4 patents)Hsing-Yeh ParkerHsing-Yeh Parker (20 patents)Morris C WillsMorris C Wills (38 patents)James Szkolnick KempnerJames Szkolnick Kempner (4 patents)Judith L AllisonJudith L Allison (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Rohm and Haas Company (4 from 3,391 patents)


4 patents:

1. 5442012 - Process for making encapsulated micro-agglomerated core/shell additives

2. 5276092 - Encapsulated micro-agglomerated core/shell additives in poly(vinyl

3. 5221713 - Co-microagglomeration of emulsion polymers (encapsulated core/shell

4. 5194498 - Poly(vinyl chloride) blends and additives therefor

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as of
12/21/2025
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