Dr. rer. nat. Christiane Maxien

M.Sc. (Chemie)

German and European
Patent Attorney
European Trademark and Design Attorney
European Patent Litigator



German, English, French


Dr. rer. nat. Christiane Maxien
Phone +49 89 210232-0
Fax +49 89 210232-65


Dr. Christiane Maxien is a partner in the law firm Wallinger Ricker Schlotter Tostmann. As a chemist with a doctorate, she specializes in the technical fields of chemistry, green technologies, material sciences, and biochemistry. In her work as a Patent Attorney, Dr. Maxien has particular expertise in advising on, granting, and enforcing IP portfolios with an international focus.

Legal practice

Dr. Maxien joined WR's team in 2010, first as a Patent Attorney trainee, and since 2013 as a Patent Attorney and since 2014 as a European Patent Attorney. In 2018, she became the first woman and youngest partner to join the partnership at WR. In IAM Patent 1000 (2022 edition) Dr. Maxien is rated as “one of the German market’s brightest future leaders”, having “a complete command of all things chemistry-related”. 

Dr. Maxien specializes in assisting and advising clients with international operations, particularly with regard to commercially viable patent portfolio management. Her practice areas include patent prosecution in Germany and Europe, coordination of patent prosecution in countries outside Europe, and enforcement and defense of intellectual property rights, in particular in opposition and appeal proceedings before the European Patent Office, as well as the preparation of freedom-to-operate opinions. 

Furthermore, Dr. Maxien is involved in Science4life and in the IBB network for industrial biotechnology in Bavaria for start-ups and SMEs in patent law issues and in the evaluation of business plans with her Patent Attorney expertise.

Technical Background

Dr. Maxien is specialized in assisting clients in the filed of Green Technologies, Materials Science and Chemistry, as well as in Space Technologies. Dr. Maxien holds a Bachelor of Science (B.Sc.) degree in chemistry and biochemistry from Ludwig-Maximilians-University Munich (LMU) and in 2006 she graduated with a Master of Science degree in chemistry. Her main fields of study were pharmaceutical chemistry, organic chemistry (stereoselective synthesis, synthesis of natural products and antibiotics), macromolecular chemistry (polymer and dye chemistry) and inorganic chemistry (fluorine chemistry, high-energy materials, solid state chemistry, molecular inorganic chemistry). Her master's thesis dealt, among other things, with the synthesis of new ionic liquids as reaction media for unstable phosphorus compounds. Dr. Maxien was awarded the Dr. Römer Prize for her master's thesis.

Dr. Maxien completed her doctorate at the Chair of Inorganic Chemistry at LMU in 2009 with the distinction "summa cum laude". The doctoral thesis focused on the development of new chalcogenophosphates and the investigation of their chemical properties, particularly with regard to the application of these compounds in modern, highly-efficient lithium-ion rechargeable batteries.


Since 2018: 
Partner at Wallinger Ricker Schlotter Tostmann

2013 until 2017
Associate at WR

Admission as European Patent Attorney

Admission as German Patent Attorney

2010 until 2013
Training as a Patent Attorney at WR

2007 until 2009
Doctorate at the LMU

2005 to 2006
Studies of chemistry at the LMU with degree M. Sc.

2001 – 2005
Studies of chemistry and biochemistry at LMU with degree B. Sc.


  • Patent Attorneys Association (PAK)
  • Institute of Professional Representatives before the European Patent Office (epi)


Dr. Klaus Römer Award


by Dr. Christiane Maxien (née Rotter)

  • "Synthesis and Crystal Structure of a New Salt of the Water-Stable Hexathiohypodiphosphate Anion: [py2Li]4[P2S6] -2 py", Schönberger, C. Rotter, K. Karaghiosoff; Heteratom Chemistry 25(2).
  • "Structure and Bonding in the Trichalcogenometaphosphate-Pyridine Anions [PX3 - Py] (X = O, S, Se, Te)," E. Gökcinar, K. Karaghiosoff, T. M. Klapötke, C. Evangelisti, C. Rotter; Phosphorus, Sulfur and Silicon and Related Elements, November 2010, 185(12) 2527 - 2534.
  • "Py2P2S7: A bis(pyridine)adduct stabilized phosphorus sulfide," C. Rotter, C. Evangelisti, S. Schönberger, K. Karaghiosoff; Chemical Communications, July 2010, 46(27), 5024 - 5.
  • "New Salts of the Waterstable P2Se64- Anion," C. Rotter, M. Schuster, S. Gebler, T.M. Klapötke, K. Karaghiosoff; Inorganic Chemistry, March 2010; 49(8), 3937-41.
  • "An Unusual Binary Phosphorus-Tellurium Anion and Its Seleno- and Thio- Analogues: P4Ch22- (Ch = S, Se, Te)," C. Rotter, M. Schuster, K. Karaghisoff; Inorganic Chemistry, August 2009, 48(16), 7531-3.
  • "Structural and NMR Spectroscopic Investigations of Chair and Twist Conformers of the P2Se82- Anion," C. Rotter, M. Schuster, M. Kidik, O. Schön, T.M. Klapötke, K. Karaghiosoff; Inorganic Chemistry; April 2008, 47(5), 1663 - 73.
  • "Protonated hydrogen cyanide," N. R. Götz, J. A. H. Axhausen, T. Soltner, C. Maxien, A. J. Kornath; Chemistry Select; October 2016, 1(17); 5517 - 5520.