Inventor · Hoffman Estates, IL, US

Robert R. Kelly

18Patents
8h-index
25Co-inventors
72Inventor score

Filing activity: Feb 6, 1975 → Apr 27, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US4042123A Automated pipe handling system Fixed Constructions 111 Expired
US5862727A Laser arbor Emerging Cross-Sectional Technologies 34 Expired
US6181251A Combination smoke detection device and laser escape indicator Physics 32 Expired
US5208826A Aimable laser module mount Mechanical Engineering; Lighting; Heating 31 Expired
US5121188A Laser module assembly Electricity 24 Expired
US4338959A Device to automatically add a controlled amount of corrosion inhibitor in an engine cooling system Emerging Cross-Sectional Technologies 20 Expired
US6672636B2 Smoke detector changing device Physics 10 Expired
US4216590A Wide angle inclinometer Fixed Constructions 9 Expired
US4630028A Pressure-biased, temperature sensor Electricity 8 Expired
US4663608A Pressure-biased, temperature sensor Physics 7 Expired
US3966054A Shock absorber for tubular storage or drill stands on a drilling ship Fixed Constructions 5 Expired
US7204534B2 Smoke detector changing device Physics 4 Expired
US4163401A Electro-hydraulic interface for a power tongs Emerging Cross-Sectional Technologies 3 Expired
US4652854A Pressure-biased, temperature sensor Electricity 2 Expired
US4706063A Pressure-biased, temperature sensor Electricity 2 Expired
US10563640B2 Optimised diametric contraction of a SMA element for use in an energy recovery device Mechanical Engineering; Lighting; Heating 1 Active
US12298450B2 Shape memory alloy heat pump Physics 0 Active
US9885344B2 Energy recovery device Mechanical Engineering; Lighting; Heating 0 Active

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