January 17, 2024

Clantech, Inc. v. CoStar Realty Information, Inc.

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Case Number:

24-1361

Court:

Appellate - Federal Circuit

Nature of Suit:

- 

Companies

Sectors & Industries:

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Reflects complaints, answers, motions, orders and trial notes entered from Jan. 1, 2011.
Additional or older documents may be available in Pacer.

Coverage

  1. December 11, 2025

    Duolingo, CoStar Prevail In Font Patent Fight At Fed. Circ.

    The Federal Circuit on Thursday refused to revive a pair of computer font patents challenged by Duolingo Inc. and CoStar Realty Information Inc., backing the Patent Trial and Appeal Board findings that the patents were invalid.

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