Inventor · Sunnyvale, CA, US

Joseph K. Sipher

23Patents
11h-index
22Co-inventors
75Inventor score

Filing activity: Jan 29, 1997 → Jul 1, 2016

Most-cited inventions

PatentTitleAreaCited byStatus
US6590588B2 Wireless, radio-frequency communications using a handheld computer Electricity 267 Expired
US6839464B2 Multiple pen stroke character set and handwriting recognition system with immediate response Physics 192 Expired
US6401112B1 Method and apparatus for synchronizing an Email client on a portable computer system with an Email client on a desktop computer Emerging Cross-Sectional Technologies 169 Expired
US6343318B1 Method and apparatus for communicating information over low bandwidth communications networks Electricity 147 Expired
US6300946A Method and apparatus for interacting with a portable computer Physics 102 Expired
US6493464B1 Multiple pen stroke character set and handwriting recognition system with immediate response Physics 95 Expired
US7404148B2 Method, system and apparatus using a sensory cue to indicate subsequent action characteristics for data communications Electricity 33 Expired
US8896621B1 User-manipulable stencils for drawing application Physics 33 Active
US9445230B1 Automated arrival notifications Electricity 18 Active
US6711609B2 Method and apparatus for synchronizing an email client on a portable computer system with an email client on a desktop computer Emerging Cross-Sectional Technologies 13 Expired
US9882865B1 Multiple phone numbers for mobile device Electricity 11 Active
US7764952B1 Distribution of audio content using mobile telecommunication devices Electricity 9 Active
USD449283S Wireless handheld computer General 8 Expired
USRE40459E1 Method and apparatus for communicating information over low bandwidth communications networks General 5 Expired
US7480368B2 Providing voice messages to an intended recipient Electricity 5 Active
US7206815B1 Method and apparatus for synchronizing an email client on a portable computer system with an email client on a desktop computer Emerging Cross-Sectional Technologies 4 Expired
US8001485B2 Method, system and apparatus using a sensory cue to indicate subsequent action characteristics for data communications Electricity 3 Active
US8805957B2 Method and apparatus for communications over low bandwidth communications networks Electricity 1 Active
US8316062B1 Shared distribution lists for distribution of audio content using mobile telecommunication devices Physics 1 Active
US8478252B2 Enforcing limits on free and/or discounted electronic communications Electricity 0 Active
US8194828B2 Providing voice messages to an intended recipient Electricity 0 Active
USRE43247E1 Method and apparatus for communicating information over low bandwidth communications networks General 0 Expired
US8660524B2 Enforcing limits on free and/or discounted electronic communications Electricity 0 Active

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