Grossman Law Offices specializes in intellectual property litigation, including patents, trade secrets, trademarks and copyrights. Established in 1994, GLO has successfully represented individuals and companies against Fortune 500 companies throughout the United States. We bring decades of litigating experience to every case, starting from the very first

Our experience allows us to represent clients on a contingency fee arrangement. Our fees are directly related to your success, and as a result, our interests are aligned exactly with your interests. We benefit only if our clients benefit. We have established many successful long-term relationships with our clients in many industries.

We are prepared to go the distance.


GLO has represented companies in Federal Courts throughout the country and in many industries, including the computer streaming, software, power tools, medical devices, automotive parts and service equipment, retail security, telephony, truck/trailer, heat transfer, printing equipment and forms, metal roll-forming equipment, construction equipment, fire protection, container-packaging, sporting goods, and soft sculpture industries.


Since 2007, GLO has obtained for its clients more than $60,000,000 in verdicts and settlements, including a $25,000,000 jury verdict against Sears involving power tool technology, a $12,000,000 jury verdict against a subsidiary of Tyco International, and several multi-million dollar settlements. See more results.

GLO has also been successful in defending its clients against infringement claims. In addition to prevailing on the issues of noninfringement on several occasions, most recently, after a lengthy litigation battle, GLO invalidated a patent in which the patentee was seeking more than $100 million in damages.

In addition to the numerous District Courts, GLO has been highly successful in representing our clients in the U.S. Court of Appeals for the Federal Circuit, arguing there on more than 14 occasions.

Telephone: (312) 621-9000