Growing community of inventors

Richmond Heights, OH, United States of America

James J Kopco

Average Co-Inventor Count = 4.00

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 = 42

James J Kopco ↔ John F Sovis (3 patents)James J Kopco ↔ Jeffrey M Kalman (2 patents)James J Kopco ↔ Craig M Saunders (2 patents)James J Kopco ↔ Craig M Saunders (1 patent)James J Kopco ↔ Michael F Wright (1 patent)James J KopcoJames J Kopco (3 patents)John F SovisJohn F Sovis (23 patents)Jeffrey M KalmanJeffrey M Kalman (108 patents)Craig M SaundersCraig M Saunders (7 patents)Craig M SaundersCraig M Saunders (148 patents)Michael F WrightMichael F Wright (100 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Royal Appliance Manufacturing Company (2 from 6 patents)


3 patents:

1. D319517 - Vacuum cleaner

2. D309807 - Vacuum cleaner

3. D309204 - Vacuum cleaner

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as of
1/5/2026
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