We are pleased to share that our firm Prüfer & Partner together with six of our intellectual property attorneys have been recognized for their outstanding work in patent prosecution and nullity in the newly published 2025 Edition of IAM Patent 1000, one of the world’s leading rankings with regard to patent services providers. We are very proud and honored that our next generation managing partners Dr. Susanne Sonnenhauser and Dr. Christian Gärtner were also listed for the first time.
What the ranking said
Prüfer & Partner
“A reliable firm providing quality patent prosecution advice…appreciated for their responsiveness, cost-effective approach and overall excellent client service.”
Jürgen Feldmeier
“Jürgen Feldmeier is a responsive and highly professional practitioner with a deep understanding of his clients’ technologies. This means he provides careful and accurate opinions, as well as valuable advice on patent applications and portfolio management, and defence strategies that are tailored exactly to his customers’ needs.”
Dr. Dorothea Hofer
“Dorothea Hofer has the ability to understand complex technical matters and provide the appropriate advice. She is a great attorney, capable of dealing with urgent matters through putting together strong teams to tackle important cases.”
Dr. Andreas Oser
“Andreas Oser carefully drafts patent applications and provides helpful advice on handling proceedings at the patent office. He devises cost-efficient strategies, highlighting the risks and challenges of each option, and selecting the most suitable path depending on his clients’ needs.”
Markus Adamczyk
“Markus Adamczyk, a dual-qualified patent attorney and attorney-at-law, sees issues from every angle to dispense valuable holistic counsel. He works seamlessly with his clients to masterfully protect and enforce their rights.”
Dr. Susanne Sonnenhauser
“Susanne Sonnenhauser is adept at working with groundbreaking technologies and companies whose patents are central to their success; unflappable under pressure, she operates with precision and the utmost care at each turn.”
Dr. Christian Gärtner
“Christian Gärtner is an impressive strategist who devotes his practice to achieving meaningful patent protection for his clients. He gets to know their businesses incredibly well and tailors his advice to suit their needs.”
About IAM Patent 1000
The prestigious ranking IAM Patent 1000, published by Globe Business Media Group in London, is commonly regarded as the definitive ‘go-to’ resource for those seeking to identify world-class, private practice patent expertise as well as leading patent service providers. IAM undertook an exhaustive qualitative research project to identify outstanding firms and individuals across multiple jurisdictions. When identifying the leading firms, factors such as depth of knowledge, market presence, and the level of work on which they are typically instructed were all taken into account, as well as positive peer and client feedback.
