Inventor · Parramatta, AU

Stephen John Walker

18Patents
6h-index
26Co-inventors
66Inventor score

Filing activity: Dec 5, 1977 → Feb 9, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US4557508A Tubular connector Fixed Constructions 63 Expired
US4159637A Hydraulic test tool and method Fixed Constructions 22 Expired
US5314024A Angular and radial self-aligning coupling Mechanical Engineering; Lighting; Heating 21 Expired
US4209891A Apparatus and method for positioning one part relative to another part Emerging Cross-Sectional Technologies 18 Expired
US6176663A Apparatus for reducing fastener bending stress in flanged connections Emerging Cross-Sectional Technologies 13 Expired
US9650855B2 Riser disconnect package for lower marine riser package, and annular-release flex-joint assemblies Fixed Constructions 7 Active
US7377323B2 Blowout preventer stack landing assist tool Fixed Constructions 6 Expired
US8657013B2 Riser system Fixed Constructions 6 Active
US9267335B2 Breech lock coupling Mechanical Engineering; Lighting; Heating 5 Active
US10087687B2 Seal sub system Fixed Constructions 4 Active
US5637356A Polyesters, polyester/acrylic dispersions, and application thereof Chemistry; Metallurgy 3 Expired
US10746328B2 Breech lock coupling Mechanical Engineering; Lighting; Heating 2 Active
US11156053B2 Riser disconnect package for lower marine riser package, and annular-release flex-joint assemblies Fixed Constructions 0 Active
US9528080B2 Method of making granular detergent compositions comprising surfactants Chemistry; Metallurgy 0 Active
US10301886B2 Drilling riser assemblies Fixed Constructions 0 Active
US10950145B2 Printed tags for heated food items Physics 0 Active
US9528081B2 Method of making granular detergent compositions comprising polymers Chemistry; Metallurgy 0 Active
US11830388B2 Printed tags for heated food items Physics 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.