IAM Patent 1000 – The World's Leading Patent Professionals
Calfee's Intellectual Property practice group has been selected as a 2026 "Recommended Ohio Law Firm" by IAM Patent 1000: The World's Leading Patent Professionals.
In recognizing world-class, private practice patent expertise, IAM undertook a comprehensive qualitative research initiative to identify leading firms and individuals across multiple jurisdictions, factoring in depth of knowledge, market presence, level of work, and peer and client feedback.
In addition, the following Calfee lawyers were recognized as Leading Patent Lawyers in Ohio by IAM Patent 1000 (2026):
- Mark W. McDougall, Partner and IP Group Co-Chair, Cleveland office
- Billy C. Raulerson, Partner and IP Group Co-Chair, Columbus office
Calfee has one of the largest Intellectual Property and Information Technology practices within a general practice firm in the Midwest. Of the 40+ skilled attorneys, patent agents, and paralegals in Calfee's Intellectual Property practice, more than 30 are registered to practice before the U.S. Patent and Trademark Office. Calfee has nearly 25,000 active patents and trademarks on its dockets, more than 15,000 of which are international. The IP team has handled filings in 190+ countries and has broad experience and a deep bench in prosecution, litigation, opinions, IP business strategy, and counseling.
Calfee, Halter & Griswold LLP is a full-service corporate law firm with 160 attorneys and professionals in Cleveland, Columbus, and Cincinnati and Indianapolis. Calfee serves clients in the Midwest, nationally and globally in the areas of Corporate and Finance, Employee Benefits and Executive Compensation, Energy and Utilities, Estate and Succession Planning and Administration, Government Relations and Legislation, Intellectual Property, Labor and Employment, Litigation, and Real Estate Law. Calfee has been recognized as a leading law firm by Chambers USA 2025 in Antitrust, Banking & Finance, Construction, Corporate/M&A, Employee Benefits & Executive Compensation, Energy & Natural Resources, Environment, Government Relations, Insurance, Intellectual Property, Investment Funds: Regulatory & Compliance, Labor & Employment, Litigation: General Commercial, Litigation: White-Collar Crime & Government Investigations, and Real Estate, and by Chambers HNW 2025 in Private Wealth Law. A founding member ofLex Mundi, Calfee offers international representation through a network of independent law firms with access to 22,000 attorneys located in more than 125 countries. Additional information is available at Calfee.com.