Professors Push Back in Review of PTAB Rehearing Decision on ODP
Briefly

Professors Push Back in Review of PTAB Rehearing Decision on ODP
The U.S. Patent and Trademark Office is reviewing the Ex Parte Baurin case regarding obviousness-type double patenting (ODP). The Patent Trial and Appeal Board previously reversed an examiner's ODP rejections based on a reference patent that was later filed and expiring. The Board's decision was influenced by the Allergan case, which clarified that a later-filed patent cannot invalidate a first-filed patent. Amicus briefs have been submitted, with most supporting the Board's analysis, while some argue for the examiner's rejections based on CAFC precedent.
"[The CAFC has] repeatedly sustained ODP rejections where the reference patent has a later priority and patent-term filing date than the application under examination."
"The Board found that the reference patent the examiner relied upon for its ODP analysis... was not a proper ODP reference because it was later filed and later expiring than the application in the present case."
"The purpose of the ODP doctrine is to prevent patentees from obtaining a second patent on a patentably indistinct invention to effectively extend the life of a first patent to that subject matter."
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