Lawrence J. Crain

Lawrence J. Crain, a founding shareholder of the Chicago intellectual property boutique Greer, Burns & Crain, has a practice centered on patent procurement and enforcement. His work encompasses a broad range of IP services, including litigation, licensing, and worldwide patent and trademark prosecution. With a technical background in biology and entomology, his firm's patent work covers diverse technical fields, including mechanical and consumer products, such as hair clippers and trimmers, packaging equipment, and medical devices.

Based on available data, Mr. Crain has represented patent holders on the plaintiff side. In the recently filed case of Conair LLC v. Tehrani Corp et al., he is listed as lead counsel for the plaintiff in a patent infringement suit in the Northern District of Illinois. His firm biography indicates experience in both asserting and defending clients in infringement allegations, though the provided case list is limited to a plaintiff-side appearance. The firm is also known for a high-volume anti-counterfeiting and trademark enforcement practice.

Mr. Crain has been with Greer, Burns & Crain since its founding. His firm biography states that he has obtained over 400 U.S. patents for clients over his career and litigates in federal courts nationwide. While the firm's website mentions experience in administrative proceedings before the U.S. Patent and Trademark Office, public records do not indicate a significant personal practice for Mr. Crain in post-grant proceedings like inter partes review (IPR) before the Patent Trial and Appeal Board.

Admitted to practice in 1983, Mr. Crain holds a J.D. from Loyola University Chicago School of Law and B.S. and M.S. degrees from the University of Illinois-Urbana. He is admitted to the bar in Illinois and is registered to practice before the U.S. Patent and Trademark Office.