When people know that the things they create will be protected, they are more likely to continue the development of ideas that could create new technology, produce jobs, and make our world more efficient and advanced. McCathern’s intellectual property team can help assist in every step of the patent process. With years of experience and knowledge, our attorneys focus on taking ideas from concept to completion while ensuring our client’s needs are met. McCathern handles all the details and guarantees thorough and comprehensive results through each of the different stages of intellectual property development.


Our patent practice focuses on all aspects of obtaining and managing patents both domestically and internationally. We enjoy working with entrepreneurs, inventors, and businesses in identifying and harvesting concepts for patenting to add value to their endeavors. We also provide opinions including infringement, validity, freedom to operate, and patentability opinions, and have experience handling inter partes reviews (IPRs) and post-grant reviews (PGRs) with the United States Patent and Trademark Office.


We have extensive experience in obtaining patents in the Mechanical, Electrical and Software fields.  Representative technologies we have worked with include Internet-related hardware and software, digital imaging devices, network systems, printing systems, automotive exterior and interior hardware, automated sprinkler systems, industrial equipment, toners, semiconductors and medical devices.

Trademarks and Copyrights

McCathern offers a range of trademark and copyright services including procurement, opinion work and cease and desist orders.

We have litigated the rights to some of the most valuable marks in America. Numerous companies and sports teams with household names have relied upon us to litigate and protect their trademarks, service marks, and copyrighted material from illegal and unauthorized use. We are routinely called upon by carriers to defend claims of this nature covered under the advertising injury provisions in their insurance policies.

Intellectual Property Attorneys

Levi G. McCathern II – Dallas
Carl L. Evans, Jr. – Dallas
Adam Mehr – Los Angeles
David L. Clark – Houston