Inventor · Carlsbad, CA, US

John A. Simpson

26Patents
10h-index
22Co-inventors
75Inventor score

Filing activity: Dec 19, 1980 → Jul 3, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US6045550A Electrode having non-joined thermocouple for providing multiple temperature-sensitive junctions Human Necessities 208 Expired
USD332442S Battery storage panel General 63 Expired
US4631094A Method of processing a nickel/titanium-based shape memory alloy and article produced therefrom Chemistry; Metallurgy 56 Expired
US4770725A Nickel/titanium/niobium shape memory alloy & article Chemistry; Metallurgy 44 Expired
US5299767A Pressure washer frame having gunvalve and hose rack Performing Operations; Transporting 38 Expired
US8500787B2 Radiopaque markers and medical devices comprising binary alloys of titanium Human Necessities 33 Active
US5688018A Protective cover for golf bags on a golf car Performing Operations; Transporting 28 Expired
US4502649A Gun-launched variable thrust ramjet projectile Mechanical Engineering; Lighting; Heating 20 Expired
US4740253A Method for preassembling a composite coupling Emerging Cross-Sectional Technologies 18 Expired
US4428293A Gun-launched variable thrust ramjet projectile Emerging Cross-Sectional Technologies 18 Expired
US9061088B2 Guide wire core wire made from a substantially titanium-free alloy for enhanced guide wire steering response Emerging Cross-Sectional Technologies 10 Active
US8500786B2 Radiopaque markers comprising binary alloys of titanium Human Necessities 6 Active
US9566147B2 Radiopaque intraluminal stents comprising cobalt-based alloys containing one or more platinum group metals, refractory metals, or combinations thereof Chemistry; Metallurgy 5 Active
USD323756S Bulb and battery storage panel General 4 Expired
US10441445B2 Radiopaque intraluminal stents comprising cobalt-based alloys containing one or more platinum group metals, refractory metals, or combinations thereof Chemistry; Metallurgy 4 Active
US11298251B2 Radiopaque intraluminal stents comprising cobalt-based alloys with primarily single-phase supersaturated tungsten content Chemistry; Metallurgy 4 Active
US9119904B2 Guide wire utilizing a nickel—titanium alloy having high elastic modulus in the martensitic phase Emerging Cross-Sectional Technologies 2 Active
US11779477B2 Radiopaque intraluminal stents Chemistry; Metallurgy 2 Active
US8480597B2 Color coded guide wire and methods of making same Emerging Cross-Sectional Technologies 2 Active
US10071229B2 Mechanisms for improving the stiffness transition across a dissimilar metal weld joint Human Necessities 1 Active
US9446220B2 Guide wire utilizing a cold worked nickel—titanium—niobium ternary alloy Emerging Cross-Sectional Technologies 1 Active
US9339401B2 Medical device utilizing a nickel-titanium ternary alloy having high elastic modulus Chemistry; Metallurgy 1 Active
US12150872B2 Radiopaque intraluminal stents Chemistry; Metallurgy 0 Active
US11129970B2 Mechanisms for improving the stiffness transition across a dissimilar metal weld joint Human Necessities 0 Active
US9889278B2 Methods for manufacturing a guide wire utilizing a cold worked nickel-titanium-niobium ternary alloy Emerging Cross-Sectional Technologies 0 Active

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