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Microsoft Corp. v. Multi-Tech Systems Inc.

Case Number: CLB0041

Date: 02.03.2004

Asserted claims of patents directed to systems and methods for simultaneously transmitting voice and/or computer data are restricted to communications over telephone lines, and thus do not encompass communications over packet-switched network such as Internet, even though only one claim at issue explicitly states that transmission of data packets must occur “over a telephone line,” since specification repeatedly and consistently describes systems of claimed inventions as communicating directly over telephone line.

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