Law Offices of Douglas Clark Hollmann
- Annapolis firm, providing representation and online information for intellectual property matters.
- http://www.annapolislaw.com/

Astrachan Gunst & Thomas, P.C.
- Baltimore firm practicing copyright, trademark, advertising, trade secret, unfair competition, and antitrust law with an emphasis on litigation. Firm and attorney profiles.
- http://www.agtlawyers.com/

The Law Office of Thomas M. Isaacson. LLC
- Providing intellectual property law services from offices in Dunkirk. Find history and attorney profile.
- http://www.tmilaw.com/

William S. Ramsey, PC
- Focusing on intellectual property matters from offices in Columbia.
- http://www.williamramseylaw.com

Zito, tlp
- Intellectual property firm based in Damascus.
- http://www.zitotlp.com/

Bruce E. Weir
- Gaithersburg attorney providing services and online information on obtaining and maintaining patents and trademarks.
- http://www.bruceweir.com/

Orner | Kaler Intellectual Property Group
- Baltimore law firm. Site provides legal primers on intellectual property and specific information on services and costs.
- http://www.patent-law.org/

Larry J. Guffey, Patent Attorney
- Baltimore patent firm. Site contains firm profile and information on patent, trademark, and copyright protection.
- http://www.guffeylaw.com/

Gorman & Williams
- Patent, copyright, trademark, and trade secret licensing and litigation services with offices in Baltimore, MD and Washington, DC.
- http://www.gandwlaw.com/

Donald A. Kettlestrings
- Rockville attorney handling patents, trademarks, and copyright law issues.
- http://www.marylandpatentlaw.com/