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Federal Circuit· 2/3/2004

Microsoft Corporation v. Multi-Tech Systems, Inc., Multi-Tech Systems, Inc. v. Net2phone, Inc.

Citations

  • 357 F.3d 1340
  • 69 U.S.P.Q. 2d (BNA) 1815
  • 2004 U.S. App. LEXIS 1595
  • 2004 WL 191013

How courts have described this case

Verbatim parenthetical descriptions written by other courts when citing this decision. Ranked by citation-network relevance.

  • noting that “a patentee’s statements during prosecution, whether relied on by the examiner or not, are relevant to claim interpretation”
  • noting that the specification referred to transmitting data over a phone line roughly two dozen times and never suggested transmitting data through the use of a packet switched network
  • statement made during prosecution of related patent operated as a disclaimer with respect to a later-issued patent
  • “[T]he claims must be must be interpreted in light of the specification, . . . which repeatedly and consistently describes [the systems].”
  • “Our broader interpretation of the term ‘headers’ does not exclude the use of the headers disclosed in the preferred embodiment; it simply does not require their use.”
  • statements made by the patentee in the prosecution of the patent application as to the scope of the invention may be considered when deciding the meaning of the claims

Source: CourtListener parenthetical corpus (CC0).

Judges: Lourie, Rader, Bryson

Read full opinion on CourtListener

Cited by

96 cases in this archive cite this case; the 20 most cited are listed.

Cites

20 cases in this archive are cited by this case.

Sourced from CourtListener / Free Law Project (CC0).

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.