Hans Langan

Senior Partner at Zacco
Ranked in Norway
IAM Research

The Patent 1000 focuses exclusively on patent practice and has firmly established itself as the definitive 'go-to' resource for those seeking world-class legal patent expertise.

Recommended - Individuals: prosecution

Zacco continues to be an outfit of choice for a wide range of domestic and international players and its recent acquisition of local Norwegian set Tandberg has further strengthened its position as a top-quality offering at the intersection of commercial and technical understanding. Four of its practitioners – Hans Langan, Rita Lillegraven, Anna Sønstevold and Stein Aamot – are ranked in the guide this year, and they embody a client-oriented approach. Langan is considered by peers to be “one of Norway’s leading patent attorneys” and he draws on his mechanical engineering background to provide clear and technically sound guidance that always puts his patrons’ goals first. Leveraging a background in chemistry, Lillegraven effortlessly manages portfolios for names such as Dynea, a leading entity in industrial coating additives. She frequently teams up with Sønstevold. Recently, the duo assisted renewable energy company Neste Oyjin with several opposition matters. “As he manages patent portfolios and produces crucial strategies, Aamot demonstrates a keen comprehension of technical concepts.” He brings ideas to fruition with ease and supports his service users as they grow. 

Hans Langan's Profile

Hans Langan has been working in the patent profession since 1999. He provides advice on strategic patenting issues and deals with all matters related to patenting, such as prior art searches, patent drafting, prosecution, validity assessments, infringement analyses, and oppositions. He has served as an expert judge in patent-related proceedings at Oslo District Court, and is a former member of the Norwegian Board of Appeal for Industrial Property Rights. He also has extensive experience as an expert witness in court proceedings on patent validity and infringement.

His technical expertise lies generally within the field of mechanical engineering, and he has significant patent-related insight into the oil and gas exploration and production industries. He graduated with a degree in Aeronautical and Astronautical Engineering from the Ohio State University in 1985. He was subsequently granted the Norwegian “sivilingeniør” degree by the Norwegian Institute of Technology (NTH).

He started his career in 1986 as a project engineer at Kongsberg, performing aerodynamic analysis work on tactical missiles. Between 1988 and 1999, he held various positions in the Norwegian oil and gas exploration industry, focusing progressively on contracts management within large field development projects. His employers and clients in this period included Aker, Kværner, Saga Petroleum, and Shell. He was employed by Bryns Patentkontor, now a part of Zacco, between 1999 and 2008, working first as a patent attorney before becoming head of the patent department. In the period 2008 to 2012, he was patent attorney and partner with the firm Onsagers AS in Oslo, before returning to Zacco. He is ranked as a recommended individual in IAM Patent 1000.

He believes that the nature of good counselling is helping his clients to understand the importance of quality IP, including its financial and practical implications. Much of his work involves offering unbiased advice and guidance, always acting with the client’s best interests in mind.

Firm Profile

Zacco is an international full-service IP solutions and brand protection specialist, with around 125 authorised patent attorneys and 75 authorised trademark and design attorneys, operating globally and in most sectors. Our combined aim is to view the world as our customers do, building practical strategies that cover their IP, brand character and content.

Zacco became a part of the OpSec Group in 2023 so we are now around 1300 experts. Together we help organisations to develop, manage and protect the value of their IP throughout its lifecycle. Combining physical and digital brand protection solutions to bring authenticity and assurance, from the creation of new assets and identities, to monetisation of rights and content, to protection against infringement and abuse.

Zacco, and many of our colleagues, regularly achieve Top Tier rankings and recommendations from Managing Intellectual Property, World Trademark Review, Intellectual Asset Management and The Legal 500, which we believe independently verifies our commitment to quality, excellence and innovation.

Patent, Trademark and Design Prosecution

Our international presence means a single point of contact can handle IP prosecution in multiple jurisdictions. Many of our patent attorneys are authorised EPAs so we have an expert ready to advise you on nearly all current and emerging fields of technology. As a client, you will find a skilled and knowledgeable practitioner able to help you secure, monetise and enforce your ideas, whether you work physically in chemistry, greentech, mechanics, materials or biotech, or digitally in digitalisation, software, AI or machine learning, among other areas. We also provide many IP portfolio management and in-sourced services, such as in-house paralegals.

Our trademark and design practice assists all industries with filing and prosecution, availability and infringement opinions and has a special focus on EU trademark practice, including oppositions, cancellations and appeals before the EUIPO.

We cover ten European jurisdictions directly including the EUIPO/EPO, the United Kingdom, Germany, Norway, Sweden, Denmark, Finland, Iceland, Austria and Switzerland, and operate internationally through a comprehensive network of trusted long-term global partners.

Litigation and Disputes

When in need of expertise in IP litigation and dispute matters, clients can rely on Zacco. We are renowned experts in IP, with both the legal and the technical proficiency in-house to successfully represent your interests and enforce your IP rights. This could be directly, in cooperation with leading law firms, or providing litigation and technical support to other counsel or trusted representatives before the authorities.

The legal practice serves all industries with advice and assistance related to IP. This includes due diligence, drafting and negotiation of contracts or licensing agreements, or Data Protection, marketing law and other compliance matters. We also advise on e-commerce, litigation, domain name conflict resolution, customs surveillance and counterfeit prevention, among other areas. Zacco has successfully represented international clients in proceedings before national courts and the European Court of Justice.

Digital Brands and Security

With a significant portion of IP infringement now taking place online, we have introduced services to help clients stay ahead of new and emerging threats to both physical and digital IP. Our Digital Brands team can actively monitor your IP and brand rights online, assisting with registration and securing of traditional and emerging domains, and identifying and removing potential counterfeits or infringements across online marketplaces, social media and the metaverse. We also provide cybersecurity training and testing, digital forensics and secure software development services.

IP 360: The Future of Intellectual Property

Zacco takes care of our clients’ innovation, identity and digital assets – everything that you literally cannot put your finger on. We help define them, evaluate them, release their hidden value and protect them, both now and in the future.

The world changes, and so do we. Zacco continuously evolves to best serve the changing needs of IP. Digitalisation means traditional borders or sectors no longer apply and we have broadened our scope of services to meet the implications, threats and opportunities that emerge.

More than 150 years of innovative thinking

We have a long history of protecting, monetising and enforcing IP, and list many leading brands and innovators as clients. Our focus on close collaboration, technical expertise and high quality makes Zacco one of Europe’s leading IP solutions specialists.

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