Inventor · disambiguated record

John R. Willingham

Also filed as: WILLINGHAM JOHN R · WILLINGHAM JOHN ROBERT

20 granted patents·7 pending applications·549 citations·filing 20052017

95Inventor score
Technology areasC09KE21BC02F
Files withBAKER HUGHES INC14HUANG TIANPING8CREWS JAMES B3INDEPENDENCE OILFIELD CHEMICALS LLC2

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27 records

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John R. Willingham — Patent Inventor | PatentIndex