Growing community of inventors

Portland, OR, United States of America

John M Burkhart

Average Co-Inventor Count = 3.00

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 = 47

John M Burkhart ↔ Robert K Emrich (1 patent)John M Burkhart ↔ William H Prather (1 patent)John M BurkhartJohn M Burkhart (1 patent)Robert K EmrichRobert K Emrich (15 patents)William H PratherWilliam H Prather (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Esco Corp. (1 from 177 patents)


1 patent:

1. 4317300 - Earth working tooth with wear cap

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12/20/2025
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