Philadelphia, PA Legal Services

Experienced Trial Attorney Practicing in Intellectual Property, Trademark Cases, Mediation, Arbitration, Defamation, Insurance Bad Faith & more.
Call 215-567-4400

Do you have a question about a patent or trademark matter, or an "unfair competition" matter? Contact the Law Offices of Bruce J. Chasan, LLC in Philadelphia, PA. With over 35 years of experience, Bruce litigated complex civil matters for the Federal Government and Fortune 500 corporations, including pharmaceutical patent infringement (ANDA) cases. Lead trial and appellate counsel in a wide range of business and commercial disputes, and personal injury cases. Value in personal service, efficiency, and cost savings. We are available to consult in complex cases, handle conflicts, and provide supplemental attorney manpower. Referrals are welcome.

Lawyer Signing Court Documents

Practice Areas

Intellectual Property Law
Patent Infringement Cases
Trademark Cases, Trade Secret Cases
Right of Publicity Cases

Products Liability, Personal Injury, Class Actions
Toxic Torts, Environmental Law, Criminal Law
Civil Rights, Employment Discrimination

Broad Civil and Criminal Litigation Experience
Tried Approximately 40 Jury Trials

Experienced in Motions, Discovery, Depositions, Appeals, Alternative Dispute Resolution

Prior Positions

Trial Attorney, U.S. Department of Justice
Assistant U.S. Attorney, Philadelphia, PA
Associate Solicitor, U.S. Patent and Trademark Office
Partner, Two Philadelphia Law Firms


A.B. Dartmouth College, Hanover, NH (Major: Chemistry)
M.A. University of Oregon, Eugene, OR (Biochemistry)
J.D. Boston College Law School, Newton, MA

Bar Admissions

U.S. Patent and Trademark Office (Reg. No. 38,764)
Admitted in PA, MA, VA, and DC
U.S. Supreme Court
Numerous Federal Circuit Courts of Appeals
Numerous U.S. District Courts

Professional Memberships

Philadelphia Bar Association
Philadelphia Intellectual Property Lawyers Association
Benjamin Franklin American Inn of Court
Dartmouth Lawyers Association
International Trademark Association

Selected Career Accomplishments

Law Offices of Bruce J. Chasan, LLC
2012 to the Present

Counsel of record for civil litigation matters in the U.S District Courts for the Eastern District of Pennsylvania, the Middle District of Pennsylvania, the Eastern District of New York, and the District of Delaware, and in the Common Pleas Courts of Philadelphia, Bucks, Chester and Montgomery Counties, PA. Also, serve a local counsel for out of town attorneys and clients. Also counsel of record in an Arbitration under the auspices of the American Arbitration Association.

Matters have included trademark infringement, patent infringement, first party insurance claims, benzene exposure risks, insurer’s bad faith failure to settle, unfair competition, franchisee-franchisor disputes, property damage tort claims, collection cases, wrongful use of civil proceedings (Pennsylvania Dragonetti Act), defamation, and petitions to vacate and confirm arbitration awards.

We also prosecute trademark applications and patent applications in the United States Patent and Trademark Office.

Partner, Caesar, Rivise, Bernstein, Cohen & Pokotilow, Ltd., Philadelphia, PA
2001-2011 (Partner 2005-2011)

Civil litigation involving trademark and patent infringement. Represented generic drug companies in patent infringement litigation to obtain court approval to launch generic pharmaceuticals (Abbreviated New Drug Applications -- ANDA cases). Prosecution of patents, trademarks, and copyrights.

Represented Apotex, Inc. as co-lead trial counsel in patent infringement litigation regarding clopidogrel bisulfate (Plavix®), a leading anti-clotting drug, in Sanofi-Synthelabo v. Apotex, Inc., No. 02-cv-2255 (S.D. N.Y.). Argued appeals in the U.S. Court of Appeals for the Federal Circuit. In pre-trial discovery, exposed inequitable conduct of co-inventor of the second patent-in-suit, forcing Sanofi to withdraw that patent from the suit, and accelerating the entry of generics into the market. Also pre-trial prepared strong validity challenge to the first patent-in-suit which enabled temporary settlement and at-risk launch of generic by Apotex.

Co-lead trial counsel for Apotex Corp. in patent infringement litigation regarding omeprazole (Prilosec®), a gastric antacid medication, in AstraZeneca AB v. Apotex Corp., No. 01–cv-9351 (S.D. N.Y.).Law Gavel and Scales of Justice

Co-lead trial counsel for Apotex Corp. in patent infringement litigation regarding calcitonin nasal spray (Miacalcin®), an osteoporosis medication, in Novartis Pharmaceuticals Corp. v. Apotex Corp., No. 02-cv-8917 (S.D. N.Y.). Case settled.

Co-lead trial counsel for Pentech Pharmaceuticals, Inc. and Cobrek Pharmaceuticals, Inc., in patent infringement litigation regarding doxercalciferol (Hectorol®), for treatment of secondary hyperparathyroidism in end-stage renal disease (dialysis patients), in Bone Care International, Inc. and Genzyme, Inc. v. Pentech Pharmaceuticals, Inc., No. 08-cv-1083 (N.D. Ill.)

Represented Pentech Pharmaceuticals, Inc. and Cobrek Pharmaceuticals, Inc., in patent infringement litigation regarding betamethasone valerate (Luxiq®), for treatment of psoriasis, in Connetics Corp. and Stiefel Research Australia Pty., Ltd. v. Pentech Pharmaceuticals, Inc., No. 07-6297 (N.D. Ill.). Case settled.

Prepared and filed Reexamination Requests and petitions in the U.S. Patent and Trademark Office in connection with pharmaceutical patents.

Handled other patent infringement matters as co-counsel for plaintiff in High Concrete Structures, Inc. v. New Enterprise Stone and Lime Co., No. 02-cv-86 (E.D. Pa.), involving a mechanical device to facilitate highway transportation of oversize pre-cast concrete structures used in the construction of buildings and parking garages; and as counsel for defendant in Pall Corp. v. BioQuate, Inc., No. 07-686 (E.D. Pa.), involving a sterile connector used in laboratory research and numerous medical applications. In the High Concrete case, wrote winning brief in Federal Circuit appeal, obtaining reversal of a judgment of patent invalidity based on best mode. The BioQuate case settled.

Represented defendants in Lanham Act (trademark) cases in the United States District Courts in Atlanta, GA and Camden, NJ.

Associate Solicitor, United States Patent and Trademark Office, Arlington, VA

Litigated appeals from decisions of the Patent and Trademark Office Board of Patent Appeals and Interferences and the Trademark Trial and Appeal Board in the Federal Circuit Court of Appeals and in the U.S. District Courts. Assisted in preparation of Amicus Curiae Briefs in the U.S. Supreme Court. Litigated disciplinary actions brought by the Office of Enrollment and Discipline. Counseled the agency on revisions to the Manual of Patent Examination Procedure and other matters.

Attorney, Law Offices of Robert A. Stutman, P.C., Fort Washington, PA
2000 - 2001

Litigated and settled numerous insurance subrogation cases in state and federal courts. Obtained $1.2 million settlement from a security company in a $3 million fire loss case.

Partner, Wilson Elser Moskowitz Edelman & Dicker, LLP, Philadelphia, PA
1984 - 2000 (Partner 1988 - 2000)

Civil litigation involving toxic torts, patent infringement, catastrophic injuries, wrongful death, general negligence, products liability, construction accidents, class actions, and contracts. Approximately 10 jury trials in Pennsylvania State and Federal Courts. Handled appeals in the Pennsylvania Superior Court, Pennsylvania Supreme Court, and in the 1st and 3d Circuit U.S. Courts of Appeals. In particular, handled class action defense on behalf of Sun Pipe Line Company in pipeline rupture case where a cable television contractor struck the underground petroleum pipeline, causing an environmental spill of 50,000 gallons of unleaded gasoline. Obtained reversal on appeal of the trial court’s judgment that Sun Pipe Line Company was strictly liable. Also obtained defense verdict on homeowner claims for personal injuries based on alleged benzene exposure from the gasoline spill. Handled product liability defense in numerous catastrophic bicycle accident cases.

Assistant United States Attorney, Philadelphia, PA
1976 - 1984

Lawyers Shaking HandsCivil and criminal trials and appeals. Approximately 30 jury trials. Cases included eminent domain matters, bank robberies, postal robberies, mail fraud, insurance fraud, an airline hijacking, tax evasion, bank fraud, environmental enforcement, military contracting fraud, and securities fraud, among others. Handled numerous suppression hearings. Argued appeals in the 3d Circuit U.S. Court of Appeals. In particular, obtained precedent-setting criminal convictions under the Clean Water Act of manufacturers of mushroom compost for stream pollution, typified by the matter of United States v. Frezzo Brothers, Inc.

Trial Attorney, U.S. Department of Justice, Pollution Control Section, Lands and Natural Resources Division, Washington, DC
1974 - 1976

Represented U.S. Environmental Protection Agency and U.S. Army Corps of Engineers with regard to programs under the Clean Air Act and the River and Harbor Act of 1899. Defended agency rulemaking in challenges in the United States District Courts and Circuit Courts of Appeals. Assisted in the civil and criminal enforcement of environmental statutes in various locations across the United States. Argued appeals in the D.C., 4th, 6th and 9th Circuit U.S. Courts of Appeals. In particular, in DuPont v. Train, obtained dismissal in the U.S. District Court of the chemical industry’s challenge to EPA effluent regulations under the Clean Water Act, and the dismissal was upheld by the Court of Appeals and in the U.S. Supreme Court.

Attorney, U.S. Department of Agriculture, Office of General Counsel, Farmers Home Division, Washington, DC
1972 - 1974

Advised Farmers Home Administration regarding operating loans, farm purchases, mortgages, administrative law, truth in lending, and the Freedom of Information Act. Liaison with United States Attorneys and the Department of Justice on agency litigation.

Call the Law Offices of Bruce J. Chasan, LLC serving Philadelphia PA today at 215-567-4400.