1
Ivan C Cheetham, Jack M Lowe, Glyn H Redmond: Crude oil pipe having layers of graduated permeability to hydrogen sulfide. Dunlop, Stevens Davis Miller & Mosher, September 6, 1983: US04402346 (59 worldwide citation)

A pipe for transporting crude oil comprises a layer of polymeric material for containing oil within the bore of the pipe, the polymeric material being surrounded and supported by a reinforcement structure comprising high tensile reinforcement elements which are protected from corrosion by gases pass ...


2
Crude oil pipe having layers of graduated permeability to hydrogen sulfide. Dunlop, October 12, 1979: FR2420073-A1 (1 worldwide citation)

A pipe for transporting crude oil comprises a layer of polymeric material for containing oil within the bore of the pipe, the polymeric material being surrounded and supported by a reinforcement structure comprising high tensile reinforcement elements which are protected from corrosion by gases pass ...