Hans-Rainer Jaenichen

Hans-Rainer Jaenichen

Vossius & Partner Patentanwälte Rechtsanwälte mbB

Recognized since 2011

Munich, Germany

Practice Areas

Biotechnology Law and Life Sciences Practice

Intellectual Property Law

Patent Attorney

Lawyer of the Year Badge - 2020 - Biotechnology Law and Life Sciences Practice
Spinning circle Big letter B

Dr. Hans-Rainer Jaenichen is a German patent attorney, a registered European patent attorney and a European Trademark and Design attorney. He has been a partner in the IP law firm of Vossius & Partner in Munich, Germany since 1990. He studied biology and holds a Ph.D. in molecular immunology.

Dr. Jaenichen's activities are primarily in the biotech and pharmaceutical area. He has frequently lectured internationally, has chaired numerous conferences and has authored many publications on biotech intellectual property. The sixth edition of his book “From Clones to Claims” on the European Patent Office's jurisdiction in the field of biotechnology in comparison to the US and Japanese practice was published together with Jürgen Meier, James F. Haley, Leslie McDonell and Yoshinori Hosoda in January 2016.

Dr. Jaenichen represents his clients at the EPO, the GPTO and before German courts. He specializes in prosecution, oppositions, revocation proceedings, infringement proceedings and compulsory license proceedings in biotechnology and on pharmaceutical inventions. He is also experienced in the strategic creation and structuring of patent portfolios.

He has handled cases in the entire field of biotechnology, biology, including microbiology and molecular biology, genetics, clinical sciences and plant genetics. Examples relate to cloned genes, the production of recombinant proteins, including their tailored glycosylation, various kinds of antibodies (monoclonal, single chain, humanized, recombinant, Herceptin, Rituximab, Golimumab, Belimumab, anti-PD1-antibodies, anti-CD27-antibodies, anti-TNF-antibodies, etc.), nucleic acid amplification processes, RNAi, aptamers, ribozymes, antisense RNA, CRISPR, DNA polymerases, transgenic plants and animals, vaccines, recombinant viruses, syntheses of non-ribosomal antibiotics, biological implants, gene therapy, enzyme replacement therapy, companion diagnostics and many more.

Furthermore, together with the chemistry department, he deals with pharmaceutical and pharmacological inventions with respect to classic chemical active ingredients and also recombinant agents, sometimes identified by means of combinatorial chemistry or high throughput screenings. The department has extensive experience in the registration and enforcement of Supplementary Protection Certificates (SPCs).

He was involved in infringement litigation concerning several DNA molecules, several enzymes, antibodies of different kinds against different targets, recombinant proteins, bisphosphonates and medical uses of the mentioned molecules.

Dr. Jaenichen is a supporting member of the Max-Planck-Society (Max-Planck-Gesellschaft) and is a member of Board of Trustees of the Munich Intellectual Property Law Center (MIPLC). He has been invited to the 2012 Banbury Conference on patenting genes.


  • Siebertstra├če 3
    Munich 81675

Vossius & Partner Patentanwälte Rechtsanwälte mbB
Headquarters: Munich, Germany

18 The Best Lawyers in Germany awards

3 Best Lawyers: Ones to Watch in Germany awards

Full Firm Profile

Lawyer of the Year Badge - 2020 - Biotechnology Law and Life Sciences Practice

Named "Lawyer of the Year" by Best Lawyers® for:

  • Biotechnology Law and Life Sciences Practice, Bayern, Germany (2020)

Recognized in The Best Lawyers in Germany 2023 for work in:

  • Biotechnology Law and Life Sciences Practice
  • Intellectual Property Law
  • Patent Attorney

Your browser is not fully compatible with our automatic printer friendly formatting.

Please use the print button to print this profile page.

Spinning circle Big letter B