The Federal Circuit’s decision in Eye Therapies, LLC v. Slayback Pharma, LLC provides further insight into the tools available for patent claim construction. The Federal Circuit had previously held that a patent’s specification can evidence that the patentee intended for a term in the patent claims to have a different meaning than what is typical. Now, the Federal Circuit has held that the prosecution history—the exchanges between the U.S. Patent & Trademark Office and the patent applicant during the application process—can do the same.
Duty of Candor Continues Before the PTAB or Does it?
In an unprecedented PTAB decision involving Spectrum Solutions LLC (“Spectrum”) (Petitioner) and Longhorn Vaccines & Diagnostics (“Longhorn”) (Patent Owner), the Board found all five challenged patents invalid and imposed sanction against patent owner Longhorn for failure to meet the duty of candor and fair dealing. The board determined that Longhorn selectively disclosed testing results to support its claim construction and misled its technical expert with incomplete laboratory data, thereby failed to meet its duty of candor and fair dealing in its actions before the Board. The claims and substitute claims in all five patents asserted by Longhorn were unpatentable due to its sanctionable misconduct. Longhorn was also ordered to provide Spectrum compensatory expenses including attorney fees. On one hand, it is a reminder that duty of candor is a continuing obligation that cannot be ignored even during the IPR proceeding. On the other hand, it does raise the question whether the PTAB has the authority to invalidate a patent for misconduct.
Patent Bar: New Changes Up Ahead for Design Patent Practitioners
In order to prepare and prosecute utility, design, and plant patent matters in front of the United States Patent and Trademark Office (“USPTO” or “Office”), the USPTO requires practitioners to demonstrate possession of the legal, scientific, and technical qualifications necessary to render valuable service to clients. See 37 CFR 11.7(a)(2)(ii).
USPTO Updates to Interim Director Review of PTAB Decisions
On July 24, 2023, the United States Patent and Trademark Office (USPTO) announced updated procedures for the interim Director Review (DR) of Patent Trial and Appeal Board (PTAB) decisions. The updated procedures could help patent practitioners manage costs by providing a new mechanism for recourse following PTAB decisions.