Ari Feinstein is a litigation partner in the firm’s Washington, D.C., office. Ari’s practice focuses on patent litigation, trademark litigation, and trademark oppositions.
Ari has experience working on intellectual property adversarial matters in a wide variety of industries, including consumer electronics, pharmaceuticals, medical devices, food and beverage, fitness and nutrition, semiconductors, HVAC, and hydrometallurgy.
During law school, Ari was an executive editor and later the Managing Editor of the Journal of Law and Technology. He also participated in the school’s Patent & Licensing Clinic. Ari received his Bachelor’s Degree in Chemistry from Case Western Reserve University.
Ari worked as a summer associate at the firm in 2016 and joined the firm in 2017.
University of Virginia School of Law, J.D., Virginia Journal of Law and Technology, Managing Editor
Case Western Reserve University, B.A., Chemistry
District of Columbia Bar
State Bar of Virginia
U.S. Court of Appeals for Veterans Claims
U.S. Patent and Trademark Office
Biotech
Antibodies & Immunology
Biologics
Therapeutics
Chemical, Industrial & Materials
Analytical Chemistry
Biochemistry
Cosmetics & Personal Care Products
HVAC & Passive Ventilation
Organic Chemistry
Pharmaceutical Chemistry
Polymers
Semiconductors
Consumer Products & Services
Aesthetics & Personal Care Products
Food & Beverage
Electrical, Semiconductor & Computer Technology
Electronics & Semiconductors
Software & IT
Energy
Geothermal Energy
Medical Devices & Procedures
Obesity Management & Bariatrics
Sleep Apnea
Pharmaceuticals
Antibodies and Immunology
Biologics
Biosimilars
Peptides
Therapeutics
Hatch-Waxman Litigation
Inter Partes Review (IPR)
International Trade Commission (ITC) Disputes
Litigation
Patent Litigation
Patent Trial & Appeal Board (PTAB) Trials (Post Grant)
Trade Secret
Trade Secret & Employee Mobility Litigation
Trade Secret & Employee Mobility Litigation
Trademark & Brand Protection
Trademark Enforcement
Trademark Trial & Appeal Board (TTAB) Disputes
TTAB Proceedings
