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Patentanwalt Dr. jur. Dipl.-Ing. Wolfgang Jabbusch Dr. jur. Dipl.-Ing. Wolfgang Jabbusch, Patent Attorney, Oldenburg
Engineering graduate of the Technical University of Berlin. Studied juristic theory at the University of Münster, specializing in intellectual property.

Dr. Jabbusch has been working as a patent attorney in intellectual property since 1963. He has been an authorized European representative before the European Patent Office since its inception.
Patentanwalt Dipl.-Ing. Helmut Arendt Dipl.-Ing Helmut Arendt, Patent Attorney until 2003
Engineering graduate of the Technical University of Berlin, specializing in marine engineering. Following graduation, Mr. Arendt was employed in the patent department of a well-known electrical engineering company.

Until 2003 he has been working as a patent attorney at our Hannover office. He is an authorized representative before the European Patent Office.



Patentanwalt Dipl.-Ing. Matthias Jabbusch Dipl.-Ing. Matthias Jabbusch LL.M., Patent Attorney, Hannover
Control technology graduate of the Technical University of Ilmenau, specializing in electrical and medical engineering.

Since 1994 he has been working in the field of industrial property and qualified as a German patent attorney in 1997. He has since 1998 been an authorized representative before the European Patent Office.

In 2006 he graduated from his advanced degree "Protection of Patents and Trademarks in Europe" with the title Master of Laws (LL.M.).
Patentanwalt Dipl.-Phys. Gunnar Siekmann

Dipl.-Phys. Gunnar Siekmann LL.M., Patent Attorney, Oldenburg
Studied physics at the Universities of Bielefeld and Münster and is the author/co-author of two scientific publications (G. Siekmann, H. Winter Physical Letters A 187 (1994) 225 and H. Winter, G. Siekmann et al. Nuclear Instruments and Methods B 135 (1998) 372-376).

Gunnar Siekmann studied "European Industrial Property Law" in an advanced University program and was awarded with the academic degree of a Master of Laws (LL.M.).

Having spent a number of years with a Munich firm of patent attorneys, he qualified as a German patent attorney and as European Patent Attorney in 1998.
Dipl.-Ing. Johannes M. B. Wasiljeff, Patent Attorney Dipl.-Ing. Johannes M. B. Wasiljeff, Patent Attorney, Bremen
Studied electrical technology, specialising in communication technology at the Universities of Hannover and Munich.

After several years with a Munich firm of patent attorneys Johannes M. B. Wasiljeff qualified as German Patent Attorney and as European Patent Attorney in 1998.