Inventor · Zürich, CH

Bruno Keller

17Patents
6h-index
33Co-inventors
66Inventor score

Filing activity: Jun 16, 1976 → Aug 29, 2018

Most-cited inventions

PatentTitleAreaCited byStatus
US4563843A Heat insulation window Emerging Cross-Sectional Technologies 25 Expired
US4432174A Self-supporting insulation element Fixed Constructions 15 Expired
US4078870A Tangential blower Mechanical Engineering; Lighting; Heating 14 Expired
US7287746B2 Device in a process engineering column Performing Operations; Transporting 11 Expired
US6337300B1 Shaped metal fixed-bed catalyst, a process for its preparation and its use Chemistry; Metallurgy 9 Expired
US6191222A Polyoxymethylene moulding compositions with improved heat stability and stability against discoloration Chemistry; Metallurgy 6 Expired
US4955285A System for covering the energy requirement of a room Emerging Cross-Sectional Technologies 6 Expired
US4545160A Window Fixed Constructions 4 Expired
US7377498B2 Device in process engineering column Performing Operations; Transporting 3 Active
US5044080A Hand held nibbling machine Performing Operations; Transporting 3 Expired
US4914718A System for covering the energy required for lighting and heating a building Mechanical Engineering; Lighting; Heating 2 Expired
US9701588B2 Method for producing light ceramic materials Chemistry; Metallurgy 1 Active
US10155878B2 Aqueous binders for heat-sealing applications Chemistry; Metallurgy 1 Active
US10195829B2 Directly adhering, transparent heat-sealable binder for the coating and sealing of transparent plastics foils Emerging Cross-Sectional Technologies 0 Active
US10385244B2 Directly attaching, halogen-free, fast-drying, heat-sealing binder for sealing polyester films to polystyrene, polyester or PVC Emerging Cross-Sectional Technologies 0 Active
US9284230B2 Method for producing light ceramic materials Chemistry; Metallurgy 0 Active
US10961409B2 Aqueous binders for heat-sealing applications Chemistry; Metallurgy 0 Active

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