e.Digital's Flash-R™ patent portfolio addresses today's large, growing global market and covers certain aspects of the use of flash memory in today's portable electronic products. These patents were developed and filed by e.Digital and have been employed in various e.Digital products since 1993. The portfolio is protected through the years 2014 - 2016, as shown below:

US5491774: Handheld record and playback device with flash memory

US5742737: Method for recording voice messages on flash memory in a hand held recorder

US5787445: Operating system including improved file management for use in devices utilizing flash memory as main memory

US5839108: Flash memory file system in a handheld record and playback device

US5842170: Method for editing in hand held recorder

e.Digital has selected and engaged the international legal firm Duane Morris LLP to handle certain patent enforcement matters on a contingent fee basis. Duane Morris is one of the 100 largest law firms in the world. In 2005 Duane Morris was recognized as the 13th most active patent litigation firm in the U.S. and was ranked 16th in the number of new patent litigation matters undertaken, according to IP Law360