Chas Hude is recommended for IP protection and portfolio management work. The firm has patent attorneys with expertise in technical fields such as biotechnology and chemistry and a team of lawyers for trademark protection work. The firm is led by Brit Olsen and Bo Stenhuus. Stenhuus, who specialises in chemistry patent work, leads its patent practice. Partner Alexander Gantzler Døssing leads the firm’s legal and trade mark practice. The partners are supported by a team of administrative staff and IP attorneys.
2024/2025
"Chas Hude were the Danish firm on record for the mutual client. However, having worked with Chas Hude, I would not hesitate to instruct them on new trademark matters. Excellent services. Attentive. Creative and not afraid to think outside the box to get the desired client outcome."
"Chas Hude attorneys and paralegals are efficient and responsive. Further, their advice is to the point, and they try to provide practical solutions to resolve IP issues and disputes. Chas Hude has a longstanding relationship with our firm and has always been providing reliable services. We like their efficiency, responsiveness and practical approaches."
"They have never let me down. They are nice and professional people that are able to offer tailor-made service."
"Partnering with Chas Hude A/S underscores their exceptional capabilities and adeptness in patent matters. The Chas Hude A/S team exhibits unparalleled professionalism, complemented by practitioners' profound technical acumen, consistently exceeding our expectations. This steadfast commitment serves as the cornerstone of our continued collaboration across diverse patent cases, making them one of our preferred choices for our endeavors. Chas Hude's enduring impact stems from their remarkable accomplishments in our collaborative cases. Their commitment to excellence, coupled with a deep understanding of technical nuances and a penchant for delivering tangible outcomes, makes them immensely appealing in the dynamic landscape of patent consultancy."
"Chas Hude stands out as one of our preferred partners in patent matters due to their unrivalled expertise and collaborative approach. With a team of highly skilled patent attorneys and specialists, they have a deep understanding of the complexities of securing and defending intellectual property rights. Their proven track record demonstrates their ability to navigate the intricate legal landscape with precision and efficiency.
Moreover, their commitment to collaboration sets them apart from others. We believe that the best results are achieved through close collaboration – such as our close collaboration with Chas. Hude. By working together, we gain a comprehensive understanding of our clients' unique needs and goals, allowing us to tailor our strategies to protect their innovations effectively. We are particularly impressed by Chas Hude and their IP service team for their exceptional achievements in our collaborative cases. Their commitment to excellence is evident in every interaction, and their deep understanding of technical nuances consistently leads to tangible, impactful outcomes. This dedication, combined with their proactive approach and outstanding expertise, makes Chas Hude A/S an invaluable partner in the dynamic landscape of patent consultancy. Their ability to seamlessly integrate their skills with our needs ensures that we consistently achieve the best possible results in protecting and advancing our intellectual property."
David Wurgler
"Great tactician. He clearly thinks through case strategy and is always three moves ahead of the opposition. He is diligent, responsive and assertive. He also builds a great client rapport."
Alexander Gantzler Døssing
"Alexander is an absolute rising star. He is smart, dedicated and has a commercial approach to disputes."
"He is experienced in trademark prosecution and disputes. His advice is practical and based on the understanding of the client’s business. Accordingly, he helps resolve trademark issues very efficiently."
"He is a good communicator, able to offer fast service, and knowledgeable."
Bo Stenhuus
"Bo Stenhuus has been pivotal in addressing intricate patent matters. Bo Stenhuus' collaborative approach, coupled with a profound comprehension of pertinent industries, fosters effortless teamwork. His specialization in pharmaceutical patents, rooted in a strong foundation in chemical engineering, is particularly commendable. Bo Stenhuus' invaluable insights and strategic assessments have significantly influenced the positive results of our joint patent initiatives. Consistently showcasing legal acumen and meticulous case scrutiny, Bo Stenhuus stands out as an exemplary patent attorney."
"Bo Stenhuus has played a crucial role in resolving complex patent issues. His collaborative style, combined with a deep understanding of relevant industries, facilitates seamless teamwork. His expertise in pharmaceutical patents, backed by a solid background in chemical engineering, is especially noteworthy. Bo Stenhuus' invaluable insights and strategic evaluations have greatly impacted the success of our shared patent projects. Demonstrating consistent legal skill and thorough case analysis, Bo Stenhuus is an outstanding patent attorney."
2023
"Bo Stenhuus is always available for a fast discussion on a certain topic and he delivers on the agreed timelines. We are very satisfied with having Bo Stenhuus as a source for general counsel on patent matters in general. He is especially good in advising on public-private relations in IP matters, given his background as a technology transfer officer from public universities. This is a service we benefit from given our research relationships with the universities."
"You can count on Chas Hude for meeting deadlines you have agreed upon and they are good value for money in their work. Several members of the team have experience from industry which is a valuable add-on for any matter involving strategy. Hence, when working with Chas Hude you have the possibility of an all-angle approach to a specific task at hand."
2021 client testimonials
A client said the firm’s practitioners are “very professional and easy to understand”.
2019 client testimonials
A client said the firm’s practitioners are “pragmatic and constructive”.
A pharmaceutical sector client used the firm because of its “in-depth knowledge of pharmaceutical formulation and creativity in patent writing”. The client also noted that the firm’s practitioners “always deliver on time and propose excellent next steps”.
Another client appreciates the firm’s “availability and clear recommendations”.
“[They are] always happy to discuss any issues we have and are understanding when it comes to tight deadlines,” says a client who added: “The reports they provide regarding the [patent] examiner’s reports are very thorough and very helpful. If there is something new to discuss or if we need to discuss strategy, they are happy come to us so we can have a face-to-face discussion, even though we are based in another country.”
The firm experienced departures in recent years. European patent attorney Marianne Johansen and are Preben Rasmussen left the firm in 2020 while Adam Cruickshank, Jesper Mark Wenzel, Jens Bille Bergholdt, Tage Nørgaard and Stig Benthin left in 2021. 2023 Rising Star and biomedical engineering specialist Bianca Bothmann left for in-house role in 2024.
Trade mark case studies show the firm advised a range of companies on filing and prosecution matters. Clients include Annoca, NeuroVive, and Matas. Former CEO Michael Madsen left the firm in 2023, while former head of legal and trade mark David Würgler left in 2025.