Dr. rer. nat. Sandra Flosdorff


Patent Engineer



German, English


Dr. rer. nat. Sandra Flosdorff
Phone +49 89 210232-0
Fax +49 89 210232-65


Dr. Sandra Flosdorff has a doctorate in biology and has been working in the field of intellectual property for several years. In 2019 she joined Wallinger Ricker Schlotter Tostmann and works as a patent engineer in the field of biology/biotechnology. 

Legal Activity

Dr. Sandra Flosdorff works as a Patent Engineer and is currently in training to become a European Patent Attorney. 

She supports our attorney in drafting patent applications and responses to office actions as well as in the drafting of written submissions in opposition proceedings before the EPO. 

Technical Background

Dr. Sandra Flosdorff specializes in cell biology, genetically modified organisms, protein biochemical methods and cell cultures.

She also has extensive knowledge in the fields of antibodies, antibody modifications, vaccines, diagnostic methods and medical applications. 


Dr. Sandra Flosdorff studied biology at the Ludwig-Maximilians-Universität (LMU) in Munich and graduated in 2009. 

Subsequently, she completed her PhD with the title "Localization and Characterization of Calmodulin-like Proteins from Arabidopsis thaliana" in the Department of Molecular Cell Architecture and Transport at the LMU.

At the same time, she attended a distance learning course for intellectual property at the Friedrich Schiller University, Jena. 

Before joining Wallinger Ricker Schlotter Tostmann, she has worked for a renowned, internationally active Munich patent law firm from 2017 on.


  • Ruge H, Flosdorff S, Ebersberger I, Chigri F, Vothknecht UC. (2016) The calmodulin-like proteins AtCML4 and AtCML5 are single-pass membrane proteins targeted to the endomembrane system by an N-terminal signal anchor sequence. J Exp Bot. 67(13):3985–3996. doi:10.1093/jxb/erw101
  • Chigri, F., Flosdorff, S., Pilz, S. et al. (2012) The Arabidopsis calmodulin-like proteins AtCML30 and AtCML3 are targeted to mitochondria and peroxisomes, respectively. Plant Mol Biol 78, 211–222 doi:10.1007/s11103-011-9856-z