Growing community of inventors

Plymouth Meeting, PA, United States of America

H James Sheaffer

Average Co-Inventor Count = 10.00

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 = 19

H James SheafferFaquir C Mittal (1 patent)H James SheafferSanford Platter (1 patent)H James SheafferJeffrey M Farina (1 patent)H James SheafferArnold Schonfeld (1 patent)H James SheafferRobert T Heath (1 patent)H James SheafferGus Cotey, Deceased (1 patent)H James SheafferRon Permut (1 patent)H James SheafferWilliam J Rueger (1 patent)H James SheafferCurtis V Brooks (1 patent)H James SheafferH James Sheaffer (1 patent)Faquir C MittalFaquir C Mittal (14 patents)Sanford PlatterSanford Platter (12 patents)Jeffrey M FarinaJeffrey M Farina (8 patents)Arnold SchonfeldArnold Schonfeld (7 patents)Robert T HeathRobert T Heath (2 patents)Gus Cotey, DeceasedGus Cotey, Deceased (1 patent)Ron PermutRon Permut (1 patent)William J RuegerWilliam J Rueger (1 patent)Curtis V BrooksCurtis V Brooks (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. U.S. Philips Corporation (1 from 14,087 patents)


1 patent:

1. 5155639 - Transport apparatus for a single reel tape cartridge

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12/13/2025
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