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David M DeLorme, Keith A Gray, Gordon Autry, Keith A Moulton: Integrated routing/mapping information. DeLorme Publishing Company, Peirce Atwood, Chris A Caseiro, Patrick R Scanlan, November 20, 2001: US06321158 (977 worldwide citation)

An Integrated Routing/Mapping Information System (IRMIS) links desktop personal computer cartographic applications to one or more handheld organizer, personal digital assistant (PDA) or “palmtop” devices. Such devices may be optionally equipped with, or connected to, portable Global Positioning Syst ...


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David M DeLorme, Keith A Gray, Gordon Autry, Keith A Moulton: Integrated routing/mapping information system. Patrick R Scanlon, Pierce Atwood, September 25, 2003: US20030182052-A1 (1 worldwide citation)

An Integrated Routing/Mapping Information System (IRMIS) links desktop personal computer cartographic applications to one or more handheld organizer, personal digital assistant (PDA) or “palmtop” devices. Such devices may be optionally equipped with, or connected to, portable Global Positioning Syst ...


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