Inventor · Pretoria, ZA

Johan Coetzer

33Patents
17h-index
14Co-inventors
78Inventor score

Filing activity: Mar 6, 1978 → Aug 16, 2000

Most-cited inventions

PatentTitleAreaCited byStatus
US4366215A Electrochemical cell Emerging Cross-Sectional Technologies 80 Expired
US4546055A Electrochemical cell Emerging Cross-Sectional Technologies 61 Expired
US5476733A Electrochemical cell Emerging Cross-Sectional Technologies 54 Expired
US6007943A High temperature electrochemical cell with molten alkali metal anode Emerging Cross-Sectional Technologies 50 Expired
US4164608A Cathode, and a cell incorporating such a cathode Emerging Cross-Sectional Technologies 46 Expired
US5972533A Electrochemical cell comprising a molten salt electrolyte containing sodium iodide Emerging Cross-Sectional Technologies 43 Expired
US5604053A Electrochemical cell Emerging Cross-Sectional Technologies 43 Expired
US4287268A Electrode for an electrochemical cell, and an electrochemical cell Emerging Cross-Sectional Technologies 43 Expired
US4975344A Electrochemical cell Emerging Cross-Sectional Technologies 41 Expired
US4287269A Electrochemical cell and anode for an electrochemical cell Emerging Cross-Sectional Technologies 37 Expired
US4457989A Electrochemical cell and an anode structure for an electrochemical cell Emerging Cross-Sectional Technologies 35 Expired
US4797333A Electrochemical cell Emerging Cross-Sectional Technologies 34 Expired
US4592969A Electrochemical cell Emerging Cross-Sectional Technologies 32 Expired
US5230968A Electrochemical cells Emerging Cross-Sectional Technologies 25 Expired
US4992345A Electrochemical cells Emerging Cross-Sectional Technologies 22 Expired
US4288506A Cathode for an electrochemical cell and an electrochemical cell Emerging Cross-Sectional Technologies 20 Expired
US4560627A Electrochemical cell Emerging Cross-Sectional Technologies 17 Expired
US5019466A Electrochemical cell Emerging Cross-Sectional Technologies 15 Expired
US4975343A Electrochemical cell Emerging Cross-Sectional Technologies 14 Expired
US4846943A Manufacture of an alkali metal aluminum halide compound and alkali metal Chemistry; Metallurgy 12 Expired
US4774156A Electrochemical cell Emerging Cross-Sectional Technologies 11 Expired
US5061580A Electrochemical cell Emerging Cross-Sectional Technologies 10 Expired
US5403676A Electrochemical cell, method of making such and precursor therefor Emerging Cross-Sectional Technologies 9 Expired
US4287271A Electrolyte for an electrochemical cell, and an electrochemical cell including the electrolyte Emerging Cross-Sectional Technologies 9 Expired
US4795685A Electrochemical cell Emerging Cross-Sectional Technologies 7 Expired

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