Growing community of inventors

Midland, MI, United States of America

John A Roper

Average Co-Inventor Count = 5.00

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 = 0

John A RoperJames Charles Bohling (1 patent)John A RoperRay E Drumright (44 patents)John A RoperAntony Keith Van Dyk (1 patent)John A RoperTimothy J Young (32 patents)John A RoperGary E Spilman (32 patents)John A RoperJames G Galloway (2 patents)John A RoperDavid J Brennan (1 patent)John A RoperAlexander S Katz (1 patent)John A RoperAndrew Hejl (1 patent)John A RoperJane Elizabeth Weier (10 patents)John A RoperBrian R Einsla (1 patent)John A RoperMatthew Carter (1 patent)John A RoperBrian J Ninness (1 patent)John A RoperJohn Tsavalas (1 patent)John A RoperRebecca S Ortiz (5 patents)John A RoperJohn P Kelly (1 patent)John A RoperCharles S Kan (4 patents)John A RoperJoseph Jankolovits (1 patent)John A RoperClayton J Radke (1 patent)John A RoperJohn D Oates (1 patent)John A RoperCarleton L Gaupp (1 patent)John A RoperXiangyi Zhang (1 patent)John A RoperAlan B Chaput (1 patent)John A RoperJohn A Roper (1 patent)James Charles BohlingJames Charles Bohling (23 patents)Ray E DrumrightRay E Drumright (44 patents)Antony Keith Van DykAntony Keith Van Dyk (9 patents)Timothy J YoungTimothy J Young (32 patents)Gary E SpilmanGary E Spilman (32 patents)James G GallowayJames G Galloway (3 patents)David J BrennanDavid J Brennan (5 patents)Alexander S KatzAlexander S Katz (1 patent)Andrew HejlAndrew Hejl (20 patents)Jane Elizabeth WeierJane Elizabeth Weier (10 patents)Brian R EinslaBrian R Einsla (10 patents)Matthew CarterMatthew Carter (8 patents)Brian J NinnessBrian J Ninness (1 patent)John TsavalasJohn Tsavalas (3 patents)Rebecca S OrtizRebecca S Ortiz (5 patents)John P KellyJohn P Kelly (1 patent)Charles S KanCharles S Kan (4 patents)Joseph JankolovitsJoseph Jankolovits (1 patent)Clayton J RadkeClayton J Radke (1 patent)John D OatesJohn D Oates (1 patent)Carleton L GauppCarleton L Gaupp (1 patent)Xiangyi ZhangXiangyi Zhang (1 patent)Alan B ChaputAlan B Chaput (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Dow Global Technolgoies LLC (1 from 4,658 patents)

2. Rohm and Haas Company (1 from 3,400 patents)

3. University of California (15,528 patents)

4. Omnova Solutions Inc. (108 patents)


1 patent:

1. 12467205 - Process for preparing a coated paper article

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as of
1/10/2026
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