Prosecution and Specification Statements: Implications for Patent Claim Construction in Parent and Sibling Applications and PTAB and District Court/Federal Circuit Litigation

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.

Ms. Burgy focuses on opinion work, client counseling, patent prosecution and management, and litigation in the chemical, pharmaceutical, and biotechnology arts. She counsels her clients on a diverse range of patent issues. She assists clients on single-patent issues as well as complex matters involving multiple patents and applications requiring ongoing advice on patent portfolio strategy and development, with an eye towards litigation. She has assisted clients in the early stages of development through due diligence and patent portfolio analysis.

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.

Ms. O’Brien has more than 20 years of experience representing domestic and foreign clients of all sizes in patent procurement, litigation, and client counseling, with a particular emphasis on chemical, biochemical, and pharmaceutical technologies. Exemplary areas of her technical expertise include polymer chemistry; ceramics; glass; food chemistry; cosmetics; paper products; adhesives; and pharmaceutical products, including new chemical entities and formulations and novel solid forms, including polymorphs, cocrystals, and amorphous forms of compounds.