Inventor · Woodside, CA, US

John Birkner

43Patents
18h-index
26Co-inventors
81Inventor score

Filing activity: May 23, 1977 → Oct 9, 2018

Most-cited inventions

PatentTitleAreaCited byStatus
US5122685A Programmable application specific integrated circuit and logic cell therefor Electricity 316 Expired
US4124899A Programmable array logic circuit Electricity 200 Expired
US4758746A Programmable logic array with added array of gates and added output routing flexibility Electricity 153 Expired
US5280202A Programmable application specific integrated circuit and logic cell therefor Electricity 118 Expired
US4789951A Programmable array logic cell Electricity 80 Expired
US5293133A Method of determining an electrical characteristic of an antifuse and apparatus therefor Physics 71 Expired
US4153938A High speed combinatorial digital multiplier Physics 52 Expired
US5502315A Electrically programmable interconnect structure having a PECVD amorphous silicon element Electricity 50 Expired
US4933577A Output circuit for a programmable logic array Electricity 49 Expired
US4554640A Programmable array logic circuit with shared product terms Electricity 37 Expired
US6078191A Programmable application specific integrated circuit and logic cell Electricity 37 Expired
US5416367A Programmable application specific integrated circuit and logic cell therefor Electricity 34 Expired
US5780919A Electrically programmable interconnect structure having a PECVD amorphous silicon element Electricity 29 Expired
US4238833A High-speed digital bus-organized multiplier/divider system Physics 25 Expired
US4476560A Diagnostic circuit for digital systems Physics 21 Expired
US5594364A Programmable application specific integrated circuit and logic cell therefor Electricity 19 Expired
US5430390A Programmable application specific integrated circuit and logic cell therefor Electricity 19 Expired
US4862136A Programmable resistance network Electricity 18 Expired
US5587669A Programmable application specific integrated circuit and logic cell therefor Electricity 13 Expired
US5986468A Programmable application specific integrated circuit and logic cell therefor Electricity 11 Expired
US5717230A Field programmable gate array having reproducible metal-to-metal amorphous silicon antifuses Electricity 10 Expired
US6150199A Method for fabrication of programmable interconnect structure Electricity 9 Expired
US5989943A Method for fabrication of programmable interconnect structure Electricity 8 Expired
US8044682B2 FPGA having low power, fast carry chain Electricity 7 Active
US5726586A Programmable application specific integrated circuit and logic cell therefor Electricity 5 Expired

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