Team
Ann-Kathrin Höhn
Rechtsanwältin
Trademark Law·Competition Law·IT Law·Social Media·Data Protection
Office: Hamburg
Advice
Legal clarity for brands, businesses and digital business models.
Rechtsanwältin Ann-Kathrin Höhn advises at Hannekum & Partner in particular on intellectual property and on IT and social media law.
Her work focuses on protecting and enforcing trademark rights, on questions of competition law and on legal support for digital business models.
During her legal training, she already worked on questions of business law and on the legal challenges of new technologies.
Her advice combines careful legal analysis with clear communication and an eye for commercially sensible solutions.
Areas of focus
Where she advises.
01
Trademark Law
A strong trademark is an important business asset. Its legal protection should therefore be planned early and strategically.
Ann-Kathrin Höhn supports clients in registering, securing and enforcing their trademark rights.
- Trademark searches and assessment of registrability
- German and European Union trademark applications
- International trademark strategies, in particular with a view to the USA, where required in cooperation with qualified foreign colleagues
- Reviewing and defending against trademark cease-and-desist letters
- Enforcement of trademark rights
- Trademark disputes
02
Competition Law
Businesses need to position themselves on a sound legal footing in the market. This concerns advertising, online marketing and dealing with competition law claims in particular.
- Legal review of advertising measures
- Cease-and-desist letters under competition law
- Injunctive relief claims
- Competition law questions in online marketing
- Out-of-court and court disputes
03
IT Law
Digital products, platforms and services need a legal framework that fits the respective business model.
- IT contracts and digital services
- Legal questions concerning online platforms and digital business models
- Drafting and reviewing contracts
- Legal requirements for websites and online services
- Legal disputes in the IT sector
04
Social Media Law and Data Protection
Digital communication and social media raise numerous questions of copyright, contract, competition and data protection law.
- Legal advice on social media presences
- Influencer marketing and cooperation agreements
- Copyrights and rights of use in digital content
- Legal review of digital advertising measures
- Data protection questions
Career
Career & qualifications
Ann-Kathrin Höhn studied law at the University of Hamburg and then completed her legal clerkship (Rechtsreferendariat) in the district of the Hanseatic Higher Regional Court of Hamburg. She passed her second state examination in law in 2025.
During her training, she already dealt with questions of intellectual property, antitrust law, and IT and data protection law.
She gained practical experience in intellectual property (IP) law, in business law advisory work and in the legal department of a public broadcaster, among other areas.
She was also a member of the Cyber Law Clinic and has worked academically on legal questions of new technologies.
Publications
- „Gesichtserkennung in der Öffentlichkeit – Wäre automatisierte Gesichtserkennung im öffentlichen Raum zulässig?“, Recht & Netz
- Publication on government bridging aid (Überbrückungshilfen), DStR 2023, 226 (in German)
Contact
Your brand. Your business. Your legal questions.
Whether it is a trademark application, a dispute under competition law or the legal questions of a digital business model: we help you identify risks early and develop suitable legal solutions.