Mr. Tolhurst has represented clients with regard to intellectual property matters for over 20 years.  His practice includes advice and counsel regarding validity and infringement of patents, trademarks and copyrights as well as litigation of intellectual property claims.  Before joining Cohen & Grigsby, he was the Environmental Director at a major U.S. corporation and has considerable experience in environmental issues affecting the operation or sale of manufacturing facilities. 

Bar Admissions

• Pennsylvania Supreme Court, 1975
• Ohio Supreme Court, 1983
• U.S. District Court, Northern District of Ohio, 1984
• U.S. District Court, Western District of Pennsylvania, 1975
• U.S. Court of Appeals, Federal Circuit, 1982
• U.S. Court of Appeals, Third Circuit, 1980
• U.S. Patent and Trademark Office, 1976

Education

• J.D. University of Pittsburgh School of Law, 1975
• B.S. (cum laude) University of Pittsburgh School of Engineering, 1971

Representative Matters

• Litigation of patent, trademark and copyright infringement claims.
• Prosecution and inter parte proceedings concerning trademark registrations.
• Negotiation of licenses of patent rights, computer software and manufacturing rights.
• Preparation and prosecution of U.S. and foreign patent applications in the electrical, electronic, computer and mechanical arts.
• Negotiation and preparation of agreements concerning the development, ownership and transfer of trade secrets and computer software.

Memberships

• Member, Allegheny County Bar Association
• Member, Pennsylvania Bar Association
• Member, Pittsburgh Intellectual Property Law Association