• The Clearing House

    Askeladden Advocates against Tribal Sovereign Immunity for Inter Partes Review Proceedings

    Submitted amicus brief in support of PTAB's decision finding tribal sovereign immunity inapplicable in six IPRs involving Restasis® patents.

  • The Clearing House

    PTAB Finds N5 Technologies Patent to be Unpatentable Following Challenge from Askeladden

    Askeladden successfully proves that all eleven claims of the mobile authentication patent were unpatentable.

  • The Clearing House

    Askeladden Petitions for Review of Digital Verification Systems Patent

    Argues that prior art renders all claims anticipated or obvious.

  • 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