Tilman Müller is specialized in patent infringement proceedings and parallel nullity proceedings. He has special expertise in complex international infringement proceedings, involving more than two parties as well as SEP and related antitrust issues. Furthermore, Tilman Müller has extensive experience in IP-related arbitration proceedings as well as in the judicial enforcement of license agreements.　

Another focus of his work are contracts in intellectual property law, in particular conception and implementation of license programs as well as R&D agreements. Tilman Müller also advises several international standardization organizations on contract law issues.　

Tilman Müller's clients include companies from various sectors and industries, such as consumer electronics, lighting, medical and communications technology as well as chemicals.　

Handelsblatt/Best Lawyers ranks Tilman Müller as one of Germany’s best lawyers 2021 in the field of Intellectual Property Law. He is also listed as a "Leading Patent Professional 2021" in IAM Patent 1000, which says "No matter how sprawling and complex, cross-border infringement proceedings and parallel nullity proceedings never pose a problem for Tilman Müller. He is a dab hand when it comes to SEP and related antitrust issues, and also knows his stuff when it comes to licensing agreements".

He speaks German and English.