IAM Patent 1000 – Gold and Silver Awards for BOEHMERT & BOEHMERT
“Gold” in Germany, “Silver” for the firm’s work before the EPO and UPC
“BOEHMERT & BOEHMERT is a clear market leader. The team has in-depth knowledge of the IP field and always provides clear, practical advice, which makes them an absolute pleasure to work with. They are professional, proactive, and attentive to detail, and they handle issues accurately. The team also contribute to legislation, academia and AI tool development, and this translates into added value in their legal advice.”
This quotation marks the beginning of the IAM Patent 1000 jury’s reasoning for this year’s awards for the firm – “Gold” for Germany and, in each case, Silver for the European Patent Office (EPO) and the Unified Patent Court (UPC).
At the center of the practice, the jury continues, is a broadly positioned team for patent prosecution and nullity proceedings. The firm’s attorney-at-law patent practice receives particular recognition as well: its enforcement strength before the UPC – to which partner Dr. Michael Rüberg also contributes by coordinating international proceedings – is reflected in the Silver ranking for the UPC.
A versatile patent attorney with extensive expertise in the fields of physics, mechanical engineering, electronics and computer technology is Christian W. Appelt. He has substantial experience in drafting and prosecuting patent applications and successfully represents clients in opposition proceedings. He maintains a close, long-standing relationship with Panasonic and works directly with the client’s team in Japan.
Dr. Markus Engelhard, also a patent attorney, is active in the fields of life sciences and medical technology, according to IAM Patent 1000, oversees the entire patent portfolio of Ionsent Technologies and represents the company before the EPO as well as foreign patent offices in connection with point-of-care diagnostic technology.
As a new entrant to IAM Patent 1000, the jury highlights Dr. Daniel Herrmann. The patent attorney further strengthens the firm’s offering in the field of medical technology by advising Lohmann & Rauscher on the global management of patent portfolios and representing the client in numerous opposition, appeal, nullity and infringement proceedings, with a strong track record.
Patent attorney Dr. Andreas Lucke also makes his debut this year, according to IAM Patent 1000. Together with partner and attorney at law Dr. Michael Rüberg, he represents MED-EL in an economically significant dispute relating to hearing implant technology, coordinates an international, multi-firm enforcement strategy and leads the German proceedings against Advanced Bionics – with a favorable decision at first instance.
The jury highlights another significant case: In parallel infringement proceedings, attorney at law Dr. Carl-Richard Haarmann and patent attorney Christoph Angerhausen represent Rittal against Wöhner in the field of power distribution systems before the courts in Düsseldorf and Frankfurt – in the jury’s view, evidence of the firm’s role as a trusted advisor across Rittal’s entire portfolio.
Christoph Angerhausen is also highly valued by clients for his broad patent law expertise: “Christoph is an outstanding, well-rounded patent practitioner. His advice is consistently high quality, fast and transparent.” He supports clients in particular in the fields of engineering and physics and develops and implements successful national and international protection strategies.
The jury also praises attorney at law Dr. Sebastian Engels: He advises the technology start-up FORMIC and supports it in connection with strategic cooperation on IP reference frameworks for modular transport systems.
Overall, the jury concludes, the firm demonstrates its ongoing commitment to new technologies and innovative business models.
The IAM Patent 1000 ranking is published annually and presents the world’s leading law firms in the field of patent law. The results are based on comprehensive research conducted by IAM Patent 1000 Analytics, which analyzes the global IP industry using robust data, customizable tools, and expert insight. This creates a detailed picture of law firm performance in the areas of patent prosecution, litigation, and transactions.
BOEHMERT & BOEHMERT’s 2026 ranking can be viewed on the IAM Patent 1000 website.








