• The Clearing House

    PTAB Invalidates Purple Leaf Patents Following IPR Challenges from Askeladden

    The Patent Trial and Appeals Board found the claims of the two payments-related patents to be unpatentable.

  • The Clearing House

    PTAB Grants Askeladden's Request for IPR of Verify Smart Patent

    Askeladden asserted that the patent's claims related to identity verification in electronic transactions are invalid as obvious.

  • The Clearing House

    Askeladden Files Amicus Brief in Oil States v. Greene’s Energy Group

    Argues that IPR and CBM processes play a critical role in improving patent quality.

  • The Clearing House

    Our Mission

    To improve patent quality, supporting good IP practices, and addressing questionable patent holder behaviors.

  • The Clearing House

    Why Patent Quality Matters

    Low-quality patents stifle innovation and exposes companies to frivolous, expensive lawsuits.


Learn more about our efforts to improve the understanding, use and reliability of patents in financial services and elsewhere.


Answers to the most common questions about the Patent Quality Initiative.


Your resource on patent litigation and IPR filings.

Patent Quality In the News