Growing community of inventors

Canton, OH, United States of America

John Schiffer

Average Co-Inventor Count = 7.00

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 = 20

John SchifferCraig M Saunders (1 patent)John SchifferLindsey Tufts, Jr (1 patent)John SchifferStephen P Rukavina (1 patent)John SchifferDavid L O'Neal (1 patent)John SchifferDennis Jenkins (1 patent)John SchifferRobert J Herzog (1 patent)John SchifferJohn Schiffer (1 patent)Craig M SaundersCraig M Saunders (148 patents)Lindsey Tufts, JrLindsey Tufts, Jr (35 patents)Stephen P RukavinaStephen P Rukavina (25 patents)David L O'NealDavid L O'Neal (10 patents)Dennis JenkinsDennis Jenkins (1 patent)Robert J HerzogRobert J Herzog (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Royal Appliance Mfg., Co. (1 from 234 patents)


1 patent:

1. 7152272 - On-board vehicle vacuum cleaner

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as of
1/12/2026
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