On-Again, Off-Again Inventorship, PTAB Litigation Blog
Deciding who invented patents can be “one of muddiest concepts in the muddy metaphysics of the patent law.” Mueller Brass Co. v. Reading Industries, Inc., 352 F. Supp. 1357, 1372 (E.D. Pa. 1972). But identifying who contributed what, and most importantly, when they made those contributions, has profound strategic consequences for potentially invalidating prior art. So when a patent owner changes its mind about who the inventors are to try to get behind prior art, can it ever just ask to go back to the way things were when its strategic interests change?
Jones Day publications should not be construed as legal advice on any specific facts or circumstances. The contents are intended for general information purposes only and may not be quoted or referred to in any other publication or proceeding without the prior written consent of the Firm, to be given or withheld at our discretion. To request reprint permission for any of our publications, please use our “Contact Us” form, which can be found on our website at www.jonesday.com. The mailing of this publication is not intended to create, and receipt of it does not constitute, an attorney-client relationship. The views set forth herein are the personal views of the authors and do not necessarily reflect those of the Firm.