Inventor · Milford, MI, US

Brian Hillstrom

38Patents
13h-index
26Co-inventors
81Inventor score

Filing activity: Feb 23, 1989 → Jan 27, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
USD509543S1 Sign frame General 97 Expired
US7584563B2 Sign stand with rolling base Emerging Cross-Sectional Technologies 32 Expired
US6009683A Round column cladding system Fixed Constructions 32 Expired
US4958458A Poster display device with longitudinal retention of frame sections by inserts Human Necessities 29 Expired
USD729437S1 Edge-lit fin General 26 Active
US6606809B2 Fold-up sign panel assembly Physics 23 Expired
USD733937S1 Four sided post extrusion for mounting panels General 20 Active
US6192646A Round cladding system Fixed Constructions 18 Expired
US5381324A Illuminated canopy system Emerging Cross-Sectional Technologies 17 Expired
US8375638B2 Sliding panel system Fixed Constructions 17 Active
US6895705B2 Light panel Physics 16 Expired
US5881528A Round column cladding system Fixed Constructions 15 Expired
USD729438S1 Edge-lit fin assembly General 14 Active
US8413398B1 Ball pivot assemblies and systems and methods incorporating the same Emerging Cross-Sectional Technologies 11 Active
USD735356S1 Square post extrusion for mounting panels General 11 Active
US6546655B1 Latch assembly for sign having flip display Emerging Cross-Sectional Technologies 9 Expired
US8104205B2 Sign stand with rolling base Emerging Cross-Sectional Technologies 9 Active
US5537302A Illuminated sign with patterned openings on light dispersion member Emerging Cross-Sectional Technologies 7 Expired
US6481054B1 Hinge assembly for sign having flip display Physics 6 Expired
US5746503A Illuminated canopy system Emerging Cross-Sectional Technologies 6 Expired
US8926126B2 Adjustable, modular lighting fixture Mechanical Engineering; Lighting; Heating 6 Active
US7941951B2 Sign stand with rolling base Emerging Cross-Sectional Technologies 6 Active
US5444931A Swing arm mechanism for wall sign Physics 6 Expired
US10849200B2 Solid state lighting circuit with current bias and method of controlling thereof Electricity 5 Active
US8419236B2 Light boxes with uniform light distribution Physics 5 Active

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