Growing community of inventors

Ambler, PA, United States of America

John Steven Chapman

Average Co-Inventor Count = 3.69

ph-index = 3

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 = 96

John Steven ChapmanGary L Willingham (3 patents)John Steven ChapmanGeorge H Redlich (2 patents)John Steven ChapmanBarry C Lange (1 patent)John Steven ChapmanAdam C Hsu (1 patent)John Steven ChapmanSamuel E Sherba (1 patent)John Steven ChapmanDavid E Greenley (1 patent)John Steven ChapmanChun-Hsien Huang (1 patent)John Steven ChapmanRichard F Schuman (1 patent)John Steven ChapmanEilenn F Warwick (1 patent)John Steven ChapmanJohn Steven Chapman (4 patents)Gary L WillinghamGary L Willingham (21 patents)George H RedlichGeorge H Redlich (11 patents)Barry C LangeBarry C Lange (33 patents)Adam C HsuAdam C Hsu (24 patents)Samuel E SherbaSamuel E Sherba (19 patents)David E GreenleyDavid E Greenley (3 patents)Chun-Hsien HuangChun-Hsien Huang (1 patent)Richard F SchumanRichard F Schuman (1 patent)Eilenn F WarwickEilenn F Warwick (1 patent)
..
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. 5703105 - Stable, solid form antimicrobial compositions comprising 3-isothiazolones

2. 5648086 - Stable solid form antimicrobial compositions comprising 3-isothiazolones

3. 5554542 - Immunoassay for isothiazolones

4. 5208057 - Process for butchering and disinfecting fowl

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as of
12/16/2025
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