Firm Profile > Kather Augenstein Rechtsanwälte > Dusseldorf, Germany

Kather Augenstein Rechtsanwälte

Intellectual property > Patent litigation Tier 2

Since its inception in 2016, the Düsseldorf team at Kather Augenstein Rechtsanwälte has gained a solid position in Germany's patent law market and is regularly instructed with highly complex, often cross-border matters of high economic importance. Under the leadership of managing partner Miriam Kiefer, the group assists a significant number of large German and international companies across a broad sector spectrum, ranging from medical products specialists to electrotechnology manufacturers, pharmaceutical companies, automotive suppliers, retail as well as chemicals and electronics corporations. The team's core includes name partner Peter Kather (by now senior partner; focus on mechanical engineering, telecoms, chemicals and biotechnology) and Christof Augenstein (electronics, telecoms, medical technology and automotive) as well as Christopher Weber (software, electronics, chemicals, pharma, mechanics and plastics processing). Alexander Haertel joined Bardehle Pagenberg in July 2020.

Practice head(s):


' Kather Augenstein offers excellent advice with regard to the special requirements of the client and possible future steps in extensive proceedings with several patents. The law firm is very flexible and client-oriented and therefore very uncomplicated to work with. This is particularly important when complex legal-technical issues with an international framework, if necessary, require work in large teams. '

' Peter Kather stands out due to his great experience and calm negotiation. '

' Christof Augenstein is very client-oriented and has a comprehensive view of both legal and technical aspects, even on complex cases. '

' Miriam Kiefer is also an excellent attorney to be recommended in patent matters. '

' High level of professionalism and quick responses. '

' Peter Kather's calm, thorough, but determined approach to his cases is unique. '

' All of them reliable contacts. '

' Peter Kather is an experienced IP attorney with the courage to make decisions, even if they do not fall within his area of expertise. '

' The Kather Augenstein team is outstanding. Compact but highly specialized in patent infringement proceedings. '

' Christof Augenstein and Christopher Weber are excellent. '

' For a German boutique, they have a good size in terms of the number of partners and are therefore able to carry out big ticket procedures. '

' Peter Kather is an elder statesman with unparalleled experience in the German patent litigation market. '

' Kather Augenstein is a boutique with outstanding qualities in the field of patent litigation. In addition to excellent craftsmanship, the team also has the creativity to develop new instruments to ward off unauthorized attacks. Anyone who wants to break new ground in defense is well served by Kather Augenstein. '

' Peter Kather and Christof Augenstein are the partners of choice. In cases that seem hopeless at the beginning, I urgently recommend Kather Augenstein as the law firm and both partners to be involved in a first case conference. This combination is unique in Germany in terms of experience, expertise and creativity. '

Key clients



Boston Scientific

Coloplast A/S

B. Braun


HTC Germany GmbH

Knorr-Bremse AG

The Firm

Kather Augenstein was founded by five established IP specialists at the beginning of 2016 and by now consists of 12 lawyers, who combine their expertise and experience for you. All of our lawyers have many years of experience acting in major cases for significant clients. Our size means that we are much more flexible than many large law firms.

We relish the challenging cases. Our passion is to disentangle complex situations, to decipher apparently contradictory facts, and to get to the root of a problem. We delve into the matter and never give up. Our focus: patents, trademarks, design and unfair competition. When it comes to intellectual property rights, we are second to none – all of us are specialised in this field.

We are a focused and very powerful team with the experience and know-how of the largest law firms. We work closely together, are highly specialised, and combine our knowledge effectively to your advantage. Naturally, this includes issues of international reach as intellectual property does not stop at borders. We work seamlessly with similarly experienced law firms around the world and coordinate international legal disputes.

We are thus able to supervise major mandates with complex issues. In court litigation we do not only master the strategy, we will also bring our creativity and ideas fully to the fore, to get the best possible outcome for you.

We work exclusively in litigation, because we prefer contentious disputes. Contentious and complex proceedings require a special approach and organisation. We appreciate your concern that your interests may not be heard with sufficient care and, also, the stressful situation and heavy pressure that legal disputes entail. We are aware of the impact that a dispute over monopoly rights may have, especially if a ban on production is at stake. We also have extensive experience with arbitration. We are regularly nominated as arbitrators, and are thus familiar with the other side of the bench.

Areas of Practice


Patents and utility models are the focus of our work at Kather Augenstein. We have enforced intellectual property rights in all technical areas, notably telecommunications, automotive, pharmaceutical, medical technology, bio-technology, nano-technology, engineering, chemistry and many more.
One of our core competencies is to make complex technical issues readily understandable. Our profession faces the challenge of the Unified Patent Court, an entirely new system, without established legal principles or precedent. In conjunction with colleagues at foreign law firms, we have engaged with the subject, and delved into the new law and procedure from different national perspectives. Since legal judges will be even more dominant at the Unified Patent Court, our role as translators is also set to become even more important in the future. The partners of Kather Augenstein were accepted as being readily qualified to act as judges for the new Unified Patent Court; an expertise that will be much to your advantage.

Trademarks and designs

Given the global division of labour, the decisive factor in the success of a company in Europe no longer hinges solely on production costs. That is because every business is now in a position to access cost-effective manufacturing options outside of Europe. Strong brands and distinctive designs are becoming increasingly important for your success, and we will help you protect them, to ensure that you remain distinctive, and that customers recognise true quality and originality. Strong brands and designs will always be subject to envy, but fear not! With us, you are in safe hands.

Unfair competition

Are you troubled by a competitor publishing misleading advertising, disseminating facts constituting trade libel, or otherwise violating laws against unfair competition? We will help you get matters back on track.

Equally, if someone accuses you of unfair behaviour or breach of intellectual property rights, you’ve come to the right place. We will defend your rights against unjustified claims.

Litigation PR

Patent and trademark disputes always attract a lot of attention. With our experience, we ensure that our clients also make a good impression in the public eye. If necessary, we offer Litigation-PR in cooperation with a trusted service provider.

Nowadays only those who take account of all communicative developments will emerge successfully from legal disputes – not only in court, but also in the public perception.

Department Name Email Telephone
Senior Partner Dr. Peter Kather
Partner Dr. Christof Augenstein
Managing Partner Miriam Kiefer LL.M.
Partner Christopher Weber
Partner Sören Dahm
Photo Name Position Profile
Dr Christof Augenstein  photo Dr Christof Augenstein Partner Dr Augenstein has been active as a litigator for more than…
 Sören Dahm  photo Sören Dahm Partner Sören Dahm was admitted to the German bar in 2012. Prior…
Dr Peter Kather  photo Dr Peter Kather Senior Partner With more than 30 years of experience in the field…
 Miriam Kiefer, LL.M.  photo Miriam Kiefer, LL.M. Managing Partner Miriam Kiefer is a founding partner of Kather Augenstein, and…
Prof Dr Jan Kleinheisterkamp  photo Prof Dr Jan Kleinheisterkamp Of Counsel Prof Dr Kleinheisterkamp is a leading specialist in international arbitration,…
 Martin Koszycki  photo Martin Koszycki Associate Martin Koszycki is specialzed in all areas of intellectual property law,…
Dr Benjamin Pesch  photo Dr Benjamin Pesch Associate Dr Benjamin Pesch primarily advises national and international companies of various…
 Carsten Plaga  photo Carsten Plaga Associate Since being admitted to the bar in 2018, Carsten Plaga has…
 Benjamin Rätz, LL.M. (Nagoya)  photo Benjamin Rätz, LL.M. (Nagoya) Associate
Dr Benedikt Walesch  photo Dr Benedikt Walesch Associate Since being admitted to the bar in 2020 Dr Benedikt Walesch…
 Christopher Weber  photo Christopher Weber Partner  Christopher Weber was admitted to the bar as a lawyer in…
Number of Lawyers : 12
AIPPI (Association for the Protection of Intellectual Property)
Union IP
German Association for the Protection of Industrial Property and Copyright Law (GRUR)
German-British Lawyers' Association
Managing Partner : Miriam Kiefer LL.M.