Inventor · Erdenheim, PA, US

Stephen Johnson

12Patents
6h-index
13Co-inventors
63Inventor score

Filing activity: Sep 26, 1980 → Feb 25, 2011

Most-cited inventions

PatentTitleAreaCited byStatus
US4396828A Pill counter Human Necessities 47 Expired
US4536823A Electric panel board having an improved extruded base pan configuration Electricity 37 Expired
US7774599B2 Methodologies to secure inter-process communication based on trust Electricity 26 Active
USD417099S Cabinet General 14 Expired
US6122918A Storage cabinet for cigars Mechanical Engineering; Lighting; Heating 8 Expired
US7698731B2 Security architecture and mechanism to access and use security components in operating system Electricity 6 Active
USD266317S Pill counter General 3 Expired
US8716688B2 Electronic device incorporating memristor made from metallic nanowire Physics 3 Active
US7600117B2 Mandatory access control scheme with active objects Physics 1 Active
US7243235B2 Mandatory access control (MAC) method Emerging Cross-Sectional Technologies 1 Expired
US8425309B2 Gaming machine feature Physics 0 Active
US9183702B2 Gaming machine with mine feature Physics 0 Expired

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