Mark A. Guetlich

Of Counsel


Law School

University of Denver Law School


Univ. of Missouri-Columbia – BS Education

Univ. of Missouri-Columbia – MS Engineering & Computer Science

practice areas



Mark attended the University of Missouri at Columbia where his graduate studies concentrated on multiple user computer operating systems and communications networks. Upon receiving his Master of Science in Engineering and Computer Science he participated in a Department of Energy networked operating system development project and received a permanent position as Member of the Technical staff with AT&T Bell Laboratories developing fault tolerant real-time operating system networks and hardware platforms for Private Branch Exchange telephone systems.

On graduating from the University of Denver Law School, Mark practiced law in a private firm founded by former Bell Labs patent attorneys in Boulder, Colorado, where he became partner with a practice in IP licensing, portfolio development, and conflict resolution. A corporate career followed as attorney for Microsoft Research and positions in IP licensing and as Director of International Patents at Microsoft. Subsequent corporate and government experience includes VP Managing Director of Patents at SAP AG headquarters in Walldorf, Germany, and Senior Counsel for International Policy and Government Affairs at the US Patent and Trademark Office.

Mark’s private practice and contributions as advisor and of counsel to Thomas ǀ Horstemeyer includes IP licensing and IP in corporate transactions, acting in-house counsel services, strategy and procurement of international patents and trademark registrations, corporate and regulatory IP compliance, trade secrets and industrial designs. Technical contributions in domestic and international patent procurement involve numerous technologies, including: complex software operating systems, machine learning, data compression, coding and decoding systems, language translation and data entry systems, digital networks and network security, communications systems and networks, power distribution and control systems, integrated circuits, electronic systems and devices, ground and air based atmospheric radar detection systems for aviation, and medical devices.


Admitted in Washington, Colorado, and USPTO


  • IPOwners Association – Vice-chair
  • International Patent Law and Practice Committee
  • EPO-US Bar Liaison Council – Vice-chair
  • JP-US Bar Liaison Council – Past Vice-chair
  • SIPO-US Bar Liaison Council – member
  • AIPLA past vice-chair and chair Japan Patent Practice Committee and past Amicus Committee 3-year appointee /AIPPI past Secretary
  • Standing Committee on International Trade Agreements
  • AUTM
  • Washington State Bar Association


  • AIPLA Fellow
  • AIPLA Outstanding Service Award Oct. 2010