Wednesday 9 June

Overcoming U.S. Obviousness Double Patenting Rejection

When and where

Date and time

Start: Wednesday 9 June 2021, 02:00 PM

End: Wednesday 9 June 2021, 03:00 PM

Event Overview

As if statutory obviousness wasn’t enough of an obstacle, U.S. Patent Examiners have another weapon in their arsenal: a judicially-created doctrine that can bar your patent from issue for not being “patentably distinct” from another! We will walk you through the use and circumstances of this special rejection and provide suggestions and tools for dealing with it.


Dear CIPA Members,

Thank you so much for attending our recent webinar, “Overcoming U.S. Obviousness Double Patenting Rejection.”

We hope you found the discussion enjoyable and informative. The slide deck for the presentation can be found on this page.

Please feel free to reach out to us directly (Loren Hulse: [email protected]; Robert Ryan: [email protected]) if you have any questions about the talk itself or, more generally, US patent law.

Kindest regards,

Loren R. Hulse & Robert Ryan


Fellows, Students


Loren Hulse, Holland & Hart

Loren Hulse, Holland & Hart

As a practitioner, Loren has developed, managed, and protected both large and small domestic and foreign patent and trademark portfolios. His wide-ranging biotech and pharmaceutical experience includes advising clients how to protect small molecule and peptide drugs, methods of treatment, genetic constructs and therapies, nucleotide analogs, and RNA related drug technologies. He has also counseled clients developing medical devices such as optically-guided feeding tubes, injectors, diagnostic kits, catheters, and cardiac assist devices. In the chemical arena, Loren’s experience includes assisting clients to protect solid oxide fuel cell technologies, ionically-conductive membrane applications, and syngas production techniques.

Robert Ryan, Holland & Hart

Robert Ryan, Holland & Hart

Bob’s substantial experience includes virtually all phases of patent, trade secret, trade identity, unfair competition, copyright, licensing, technical contract, and antitrust law. His work has involved numerous technologies, including electrical, electronic, mechanical, optics, software (from parallel processor operating systems to complex applications), computer hardware, satellite transmission, telecommunications, chemical mechanical, food science, gaming, petrochemicals, mining, and rocketry. Bob also litigates on behalf of his clients, and has been trial counsel in antitrust and patent cases and other intellectual property centric cases, and held leading roles in scores of appeals and numerous patent review and trademark opposition proceedings before the U.S. Patent and Trademark Office.

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