Anneliese S. Mayer

She / Her / Hers
150 South Fifth Street, Suite 2200
Minneapolis, MN 55402
D: 612.371.5339
Contact My Assistant
Kristy N. Self

With seven years' experience as in-house counsel for a Fortune 500 company, Anneliese approaches her clients' legal projects with the end business goal in mind. Her patent prosecution experience includes working with inventors from around the world on pre-drafting strategy through appeals before the Board of Patent Appeals and Interferences and opposition strategy before the European Patent Office. She has facilitated multimillion-dollar license agreements, as well as confidentiality and development agreements.

Anneliese’s litigation experience includes working on patent, trademark, and trade secret litigation teams at various stages of the litigation process from pre-filing due diligence through trial. She has also advised clients on overall IP strategy, best practices and education, freedom to operate, infringement and invalidity opinions, and due diligence and patent portfolio analyses for acquisitions and licensing opportunities. 

She has worked in a wide range of technical areas, including chemical, mechanical, biological, food science, and software and business methods.

Anneliese serves as a volunteer attorney for the Children's Law Center of Minnesota. She enjoys hiking with her family, cooking, and listening to music. 

Representative Cases

Represented a prison inmate pro bono against a prison guard for violation of 42 U.S.C. § 1983.  Part of the trial team in a three day jury trial in the Western District of Wisconsin.

Represented industrial chemical Fortune 500 company in patent litigation against competitor. Resolved case with an injunction against the competitor’s future use and admission of patent validity and enforceability.

Represented generic pharmaceutical companies in Hatch-Waxman litigation as a member of the trial team in bench trials in the District of Delaware and the District of New Jersey. The patents were either invalidated or not infringed.

Represented a Fortune 500 company in trade secret litigation against former employees. Obtained a jury verdict of willful and malicious trade secret misappropriation and breach of the employment agreements.

Represented a Fortune 500 company in patent litigation against a competitor for infection prevention technology. The case settled favorably immediately before trial.


Marquette University Law School
J.D., 2002

College of St. Benedict
B.A. Chemistry, 1999


U.S. District Court for the District of Minnesota, 2010
U.S. Patent and Trademark Office, 2003
Wisconsin State Bar, 2002
Minnesota State Bar, 2002

Professional Affiliations

American Intellectual Property Law Association
Minnesota Intellectual Property Law Association
Licensing Executives Society

Representative Projects

Negotiated technology transfer and license agreements granting rights of newly acquired sensor IP to a number of start-up and smaller organizations. 

Negotiated long-term development agreements with international chemical and biological raw material suppliers.

Negotiated project-specific development agreements with global machine and packaging companies.

Drafted intercompany agreements moving intellectual property to one corporate entity and licensing the use of the intellectual property to the operating entities of the organization around the world.

Publications & Speaking


Presenter, IP Law for Non-IP Attorneys: Four Hot Takes On What Your Clients Need You to Know, CLE, March 12, 2020

Instructor, IP Management 7: Biotechnological/Pharmaceutical Licensing, CASRIP Patent and Intellectual Property Law and Practice Summer Institute, July 27, 2016

Panelist, IP Provisions in Employment: Contracts Protecting the Company’s Best Assets on the Front End, December 16, 2015

Panelist, Fundamental Intellectual Property Law and Related Restrictive Covenants, ABA 8th Annual Labor and Employment Law Conference, Los Angeles, CA, November 6, 2014

Panelist, IP Provisions in Employment Contracts, Midwest IP Institute, Minnesota CLE, September 26, 2013

Panelist, IP Issues in Contracts, Minnesota CLE, June 12, 2013

Panelist, IP Issues in Employment Contracts: Protecting the Company's Best Assets on the Front End, Minnesota CLE, 2013

Presenter, Collaboration Agreements to Support Open Innovation, LES Minnesota Chapter meeting, February 19, 2013

Presenter, Practical Considerations for Development Agreements, LES Minnesota Chapter Meeting, February 9, 2010

Presenter, Your IP Portfolio, MHTA CEO Roundtable, February 5, 2010


Quoted, Selling overseas? Know your intellectual property rights, Minnesota Business, October 2018


All Media
CAFC Affirms PTAB Decision on Patents in Parallel IPR and Reexamination Proceedings
District Court’s Indefiniteness Determination Based on “Unanswered Questions” Reversed by CAFC
News Alerts
Merchant & Gould Congratulates Sheila Niaz as the Firm’s Pro Bono Award Winner
Merchant & Gould’s Pro Bono Committee announced the firm’s 2021 Pro Bono Awards to attorneys who have dedicated their time to helping their communities through pro bono legal services and their deep commitment. A special congratulations ...
Breaking the Ice: IP attorney, colleagues earn pro bono recognition
Merchant & Gould partner Tony Zeuli says volunteering with Children’s Law Center (CLC) to represent foster children in court is a rewarding experience for him and Minneapolis colleagues.Zeuli, a CLC board member, accepted the nonprofit’s Distinguished ...
Press Releases
Merchant & Gould Receives Distinguished Service Award from Children’s Law Center of Minnesota
Merchant & Gould was honored by the Children’s Law Center of Minnesota (CLC) with the Distinguished Service Award at its 26th Anniversary Virtual Benefit on Oct. 7.The Distinguished Service Award is presented annually to one law firm or corporation ...
CAFC Reverses Board’s Prior Art Interpretation as Lacking Substantial Evidence
Fifth Circuit Affirms Denial of Preliminary Injunction in Hard Seltzer Trademark Battle
On the Cutting Edge: Updates on Patent Law, Data Privacy, and E-Commerce
3-Minute Case Summaries: A fast-paced and energetic update on recent case law developments important to patent litigation from ten select cases. Brand Protection Update: Hear an update on trends and cases related to online brand protection, including ...
Press Releases
Merchant & Gould Promotes Five Attorneys to Partners in Three Office Locations
Merchant & Gould promoted five attorneys in three of its offices around the country -- a great way to launch the New Year.  The promotions include Eric R. Chad, Mark L. Gleason and Anneliese S. Mayer in Minneapolis; Ryan J. Fletcher, Ph.D., in Denver; ...
Ethics & Elimination of Bias for IP Lawyers Series – Part I
IDS Center 3rd Floor, Conference Center 80 S. 8th Street Minneapolis, MN, 55402Agenda 1:00 p.m. - Registration  1:30 p.m. - Presentations 3:45 p.m. - Panel Discussion 4:45 p.m. - Networking Cocktail ReceptionPresenters Johanna Carrane, ...
Managing IP Litigation: A Workshop for In-House Counsel
In-house counsel have a unique role in litigation and play an important part in executing overall litigation strategy. Certain litigation tasks are ill-suited to delegation to outside counsel and are better managed in-house.You're invited to a complimentary ...
Mayer Lecturing at CASRIP Patent & IP Law Summer Institute
Merchant & Gould attorney Anneliese Mayer will be an instructor at the CASRIP Patent and Intellectual Property Law and Practice Summer Institute, held annually at the University of Washington School of Law. As part of the IP Management Track, they ...
Perspectives on Federal Trade Secret Law: Impact of the DTSA on Your Company
For the first time ever, Congress passed legislation that federalizes trade secret law – the Defend Trade Secrets Act (“DTSA”). The DTSA, signed into law by President Obama on May 11, 2016, creates a new federal cause of action for the misappropriation ...