Since its founding in 1897, Synnestvedt & Lechner (S & L) has been engaged continuously in the practice of intellectual property law longer that any other Philadelphia law firm. Our practice specializes in the solicitation, licensing, counseling and litigation of rights involving patents, trademarks, copyrights, trade secrets, technology development and transfer contracts, trade dress rights, and antitrust and unfair competition actions. S&L is committed to providing the highest standards of legal services tailored to the intellectual property needs of its clients.

We have the capability to address your concerns with imaginative solutions grounded in a century of experience and the most up-to-date technical know-how . Whether you are an individual or a Fortune 500 corporation and whether your technology is well established or cutting edge, we have the team to service your needs. Our attorneys are trained in the scientific disciplines of chemistry, pharmaceutics, molecular and recombinant biology, physics, electronics, computer programming, engineering and a variety of other technical specialties. For example, our firm includes attorneys who are not only chemists, but attorneys who are experts in organic chemistry, inorganic chemistry, chemical engineering, and pharmaceuticals.

S&L represent clients in state and federal courts, before administrative agencies including the US Patent and Trademark Office and the US Copyright Office, and during the course of high stakes business negotiations. In association with our agents outside the United States, we provide management and counseling services for our clients in the patent offices and courts of Europe, Canada, Mexico, South America, the Far East, Australia and New Zealand.

Whether a problem is relatively simple, such as bringing a trademark registration up-to-date, or is highly complex, such as resolving a multinational patent infringement case, our clients count on us to know the law and to provide straight-forward, timely, cost-effective and, above all, practical advice. S&L delivers.

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Representative List of Clients