Growing community of inventors

Midlothian, VA, United States of America

Robert A Shama

Average Co-Inventor Count = 6.00

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 = 5

Robert A Shama ↔ Dewey P Szemenyei (1 patent)Robert A Shama ↔ David A Venhaus (1 patent)Robert A Shama ↔ Richard J Rohfritch (1 patent)Robert A Shama ↔ Danny Pridemore (1 patent)Robert A Shama ↔ James M Horvath (1 patent)Robert A ShamaRobert A Shama (1 patent)Dewey P SzemenyeiDewey P Szemenyei (3 patents)David A VenhausDavid A Venhaus (1 patent)Richard J RohfritchRichard J Rohfritch (1 patent)Danny PridemoreDanny Pridemore (1 patent)James M HorvathJames M Horvath (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Afton Chemical Corporation (1 from 333 patents)


1 patent:

1. 7207308 - Filterless crankcase lubrication system for a vehicle

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as of
1/9/2026
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