Inventor · Lexington, MA, US

Donald E. Smith

38Patents
12h-index
32Co-inventors
81Inventor score

Filing activity: Jan 17, 1975 → Oct 17, 2013

Most-cited inventions

PatentTitleAreaCited byStatus
US5042062A Method and apparatus for providing real-time switching of high bandwidth transmission channels Electricity 111 Expired
US6430160B1 Estimating data delays from poisson probe delays Electricity 102 Expired
US3952099A Dermatological compositions Human Necessities 63 Expired
US5878224A System for preventing server overload by adaptively modifying gap interval that is used by source to limit number of transactions transmitted by source to server Electricity 62 Expired
US4130667A Dermatological compositions Human Necessities 57 Expired
US4046886A Dermatological compositions Human Necessities 51 Expired
US4130643A Dermatological compositions Human Necessities 48 Expired
US4281412A Method of and apparatus for transmitting and recovering offset QPSK modulated data Electricity 34 Expired
US5903631A One-button intelligent CTI dialler Electricity 33 Expired
US8265061B1 Optimal expansion of a telecommunications network Electricity 17 Active
US4635280A Bit synchronizer for decoding data Electricity 17 Expired
US4148893A Dermatological compositions Human Necessities 14 Expired
US9154225B2 Speed test throughput distribution Electricity 12 Active
US4150114A Dermatological compositions Human Necessities 12 Expired
US7917447B1 Method and system for providing a community of interest service Physics 9 Active
US4148924A Dermatological compositions Human Necessities 9 Expired
US6912216B1 Method and system for estimating performance metrics in a packet-switched communication network Electricity 9 Expired
US4148917A Dermatological compositions Human Necessities 9 Expired
US4148887A Dermatological compositions Human Necessities 9 Expired
US6112068A Phase-locked loop circuit with switchable outputs for multiple loop filters Electricity 9 Expired
US4148874A Dermatological compositions Human Necessities 9 Expired
US8644678B2 Video recording management Electricity 8 Active
US4960315A Atmosphric optical communication link Electricity 8 Expired
US6912376B1 Mobile phone transceiver Electricity 7 Expired
US8825766B2 Methods, systems and computer program products for a peer-to-peer cache content replacer Electricity 5 Active

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