Avoiding Bad Faith in Patent Prosecution: Recent Court Guidance, Best Practices When Preparing Patent Applications

Dr. Feldstein focuses on U.S. district court litigation, primarily concerning the enforcement of U.S. patent rights and trade secret issues, and post-grant trial proceedings at the USPTO, including inter partes review (IPR) and post grant review (PGR). He maintains an active patent prosecution practice, preparing and prosecuting U.S. patent applications on behalf of domestic and foreign clients. He also provides opinions and strategic guidance to clients on infringement, validity, enforceability, and clearance matters. His practice encompasses a range of technologies, including pharmaceuticals, biochemistry, polymers, small molecule chemistry, optics, and medical and analytic devices.

Mr. Irving has 47 years of experience in the field of IP law. His practice includes due diligence, patent prosecution, reissue and reexamination, patent interferences, and counseling, including prelitigation, Orange Book listings of patents covering FDA-approved drugs, and infringement and validity analysis in the chemical fields, as well as litigation. He has served as lead counsel in many patent interferences.

Dr. MacAlpine practices patent procurement, due diligence investigations, opinion work, and client counseling, primarily in the chemical and pharmaceutical areas. She has extensive experience in handling patent matters before the U.S. Patent and Trademark Office (USPTO), including post-grant proceedings specifically IPRs, appeals, and oral hearings at the PTAB; drafting and prosecution of patent applications; reissue and reexamination proceedings; and interferences.

Ms. Murphy focuses on developing patent filing and prosecution strategies tailored to clients’ worldwide business goals. She works with a wide range of clients, including small biotech startup companies, research foundations, and large publicly traded biotechnology and pharmaceutical companies. Ms. Murphy prepares new patent applications, prosecutes U.S. and foreign applications, and represents appellants in ex parte appeals before the Patent Trial and Appeal Board (PTAB) of the U.S. Patent and Trademark Office (USPTO). She has also led clients through numerous reissue applications, inter partes and ex parte reexamination applications, and supplemental examination proceedings. Ms. Murphy’s extensive client counseling practice includes providing patentability, freedom-to-operate, infringement, and validity opinions. In addition, she represents petitioners and patent owners in inter partes review (IPR) and post grant review (PGR) proceedings before the PTAB. She has substantial experience in a wide variety of life sciences technologies, including antibodies and antibody drug conjugates; antiretrovirals and anticancer agents; biologics; blood clotting factors; cell signaling and signal transduction; diagnostic markers and detection assays; drug formulations; gene delivery systems, including AAV; gene editing technologies, including CRISPR; immunooncology; lipid nanoparticles; microbiome analysis and probiotics; nucleic acid modifications; peptide synthesis and protein purification; single-cell and single-molecule analysis; small molecule drugs; and vaccines.