The United States Patent and Trademark Office's Guide for preparation of patent drawings / with a practitioner's comment on drawings for electronic filing by Carl Oppedahl of Oppedahl Patent Law Firm LLC ; with a practitioner's comment on drawings for design patent applications by Margaret L. Polson of Oppedahl Patent Law Firm LLCCarl Oppedahl · First published 2012Open the Tome
AIPLA Twentieth Annual PCT SeminarChristine Bonvallet, Jay Erstling, Samson Helfgott, Michael Neas, Carl Oppedahl · First published 2016Open the Tome