Inventor · Naperville, IL, US

William Fechalos

26Patents
9h-index
20Co-inventors
75Inventor score

Filing activity: May 27, 1975 → Nov 20, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US4256926A Microprocessor control complex for a telecommunication switching system Electricity 68 Expired
US4627047A Integrated voice and data telecommunication switching system Electricity 42 Expired
US4154988A Method and means for accessing program memory of a common control telecommunications switching system Electricity 37 Expired
US4613730A Electronic telephone with feature access and speed dialing including loop breaks Emerging Cross-Sectional Technologies 30 Expired
US4737950A Multifunction bus to user device interface circuit Electricity 19 Expired
US9577443B2 Battery system and management method Electricity 16 Active
US8558712B2 Battery system and management method Electricity 13 Active
US4351986A Electronic telephones with cooperative interaction between a master set and members' sets in a group Electricity 12 Expired
US7010115B2 System and method for predictive contacts Electricity 11 Expired
US5347512A Telecommunication system with delay data buffer and method Electricity 9 Expired
US4680754A Multi-function bus Electricity 8 Expired
US8558508B2 Battery system and management method Physics 8 Active
US7772852B2 Battery string performance measurement Physics 8 Active
US8721010B2 Equipment cabinet Emerging Cross-Sectional Technologies 7 Active
US6046994A Modular switching system Electricity 5 Expired
US9301408B2 Equipment cabinet Emerging Cross-Sectional Technologies 5 Active
US4519072A Answer supervision system Electricity 4 Expired
US10302707B2 Battery system and management method Electricity 2 Active
US9755200B2 Equipment cabinet Emerging Cross-Sectional Technologies 2 Active
US4435620A Dial pulse delay circuit Electricity 1 Expired
US3995122A End mark controlled switching system and method Electricity 1 Expired
US11354205B1 Redundant bus circuit breaker adapter assembly and power distribution system Electricity 0 Active
US12313690B2 Battery-string midpoint voltage measurement apparatus and method Electricity 0 Active
US9799876B2 Battery system safety shield Emerging Cross-Sectional Technologies 0 Active
US11563433B2 Direct current circuit switch Electricity 0 Active

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