Pleasanton, CA, United States of America

Henry L Spence

This inventor holds 3 USPTO granted patents. Top assignee: Filper Corporation. Active years: 1977-1979.


% Patents Active = 100.0

Average Co-Inventor Count = 1.3

ph-index = 3

Forward Citations = 29(Granted Patents)


Company Filing History:


Years Active: 1977-1979

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3 patents (USPTO):Explore Patents
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