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Concord, OH, United States of America

Richard C Spangler

Average Co-Inventor Count = 2.00

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 = 1

Richard C SpanglerRoy L Orndorff, Jr (1 patent)Richard C SpanglerRichard C Spangler (1 patent)Roy L Orndorff, JrRoy L Orndorff, Jr (30 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Duramax Marine, LLC (1 from 21 patents)


1 patent:

1. 6648510 - SPA super demountable bearing

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