2 results for “Owens-Illinois”
-
Patent · October 7, 1969
Drilling fluid (US Patent 3,471,402, 1969)
…1969, filed July 25, 1966. It was assigned to Phillips Petroleum Co. The patent's description opens: This invention relates to drilling fluids and well working fluids for use in drilling wells with well drilling tools.
-
Patent · May 31, 1966
Sealing porous formations (US Patent 3,253,664, 1966)
…1962. It was assigned to Phillips Petroleum Co. The patent's description opens: This invention relates to a method and a composition for sealing porous formations, particularly porous formations in the earth encountered in the drilling…