Atty. Charles A. Weiss
Charles A. Weiss is a partner in Holland & Knight's New York office and head of the New York Intellectual Property Group.
Profile Summary
About Charles A. Weiss at a glance
Charles A. Weiss is a patent and ip attorney based in New York, New York, practicing at Holland & Knight LLP. Admitted to practice in New Jersey, New Jersey and New York, New York. Educated at Columbia University (J.D., 1991). Recognitions include Best Lawyers in America — Litigation - Patent (2026), Best Lawyers in America — Patent Law (2026), and Best Lawyers in America — Additional Areas of Practice: (2026). Serands clients in New York, NY and the surrounding metropolitan area.
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About
- Charles A. Weiss is a partner in Holland & Knight's New York office and head of the New York Intellectual Property Group
- He concentrates his practice on technology-driven litigation, counseling and transactions, primarily in the pharmaceutical, chemical and biotechnology areas
- He also counsels clients on questions of patent validity and infringement, and provides a litigator's perspective on prosecution matters
- Mr. Weiss litigates patent, trade secret, license and false advertising cases in diverse technical areas
- He has handled cases over the years involving expression of recombinant proteins and antibodies, controlled release pharmaceuticals, medical diagnostic agents, endocrine and hormone products, nutritional supplements, industrial control systems, food chemistry, nucleic acid diagnostic assays and commercial detergents
- He also has extensive experience in the investigation of product counterfeiting and pursuit of those responsible
- In addition, Mr. Weiss has a diverse non-litigation practice, focused on supporting transactions in which a substantial value is attributed to a party's patent position, such as its ability to exclude competitors or to bring its product to market free of meritorious infringement claims by others
- He has negotiated and drafted licenses and other agreements, including commercial collaboration, joint research and product acquisition agreements, and regularly advises financial professionals on the strength or vulnerability of a target company's patent positions
- Mr. Weiss also has experience in commercial matters, including corporate and securities transactions, contract litigation, insurance and banking disputes, construction litigation, accounting and attorney malpractice, and investigations of employee malfeasance and fraud
- Mr. Weiss is an adjunct professor at New York Law School, where he designed a course on patent litigation and analysis, and is also an associate adjunct professor at Brooklyn Law School, where he designed and teaches a course on food and drug law
Practice Areas Explained
Charles A. Weiss's Areas of Practice
Each practice area below reflects the types of cases Charles A. Weiss handles, with a brief overview of what that area of law covers.
Charles A. Weiss is one of 20,749 patent attorneys indexed nationally. Browse patent attorneys in New York →
IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.
Charles A. Weiss is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in New York →
Jurisdictional Context
Why local counsel matters in New York
Practicing law in New York. Legal matters in New York are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in New York are typically filed in the local municipal court or the appropriate New York state district court, depending on subject matter and amount in controversy. An attorney licensed in New York brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in New York courts without local counsel or pro hac vice admission.
Looking for additional New York attorneys? Browse all attorneys in New York or all attorneys in New York.
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