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As an optimist, for me there are no problems but tasks to be solved. And puzzling over the best solution is for me like being a researcher uncovering a secret.

Jürgen Feldmeier

Dipl.-Ing. (Univ.) Mechanical Engineering, Master of Laws
Patent Attorney, European Patent Attorney,
European Trademark & Design Attorney
Registered Representative before the Unified Patent Court
Registered Representative before the Austrian Patent Office

+49 89 69 39 21-0feldmeier@pruefer.eu

Professional career

BIOGRAPHY:
Jürgen Feldmeier has been a patent attorney since 1992 and has been the managing partner of Prüfer & Partner since 2001.
Prior to his training as a patent attorney, he gained practical experience at BMW Technik GmbH, Hurth and Convotherm.
He studied mechanical engineering with a focus on design and development at the TU Munich. He also acquired the Master of Laws (LL.M. European Intellectual Property).

LANGUAGES:
German (mother tongue), English (business fluent), French (basic knowledge)

Specialist areas of activity

ACTIVITIES:

  • application procedures for patents, trademarks, designs
  • litigation in patent, trademark and design issues
  • prosecution procedures at GPTO, EPO, FPC, EUIPO
  • participation in more than 100 litigation proceedings (infringement proceedings, nullity and opposition proceedings) before the patent offices and the courts of Munich, Düsseldorf, Mannheim and Hamburg, as well as the Higher Regional Court of Karlsruhe, the Higher Regional Court of Düsseldorf and the Federal Court of Justice

AREAS OF EXPERTISE:
Technical knowledge and experience in the fields of:

  • automotive technology
  • machine tools and components
  • precision engineering
  • mechanical components of all kinds
  • medical technology
  • sports equipment
  • mechatronic components, control and regulation technology
  • process engineering, especially in the food industry

Publications and memberships

Publications

“Protection and allowance for (industrial) intellectual property in European Community Law]

Memberships

epi – European Patent Institute
Chamber of Patent Attorneys
AIPPI – International Association for the Protection of Intellectual Property
FICPI – International Federation of Intellectual Property Attorneys
INTA – International Trademark Association
EPLIT – European Patent Litigators Association

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Ideas thrive better under professional protection.

Dr. Andreas Oser

Dr. rer. nat., Dipl.-Chem., Master of Laws
German Patent Attorney, European Patent Attorney,
European Trademark and Design Attorney
Registered Representative before the Unified Patent Court

+49 89 69 39 21-0oser@pruefer.eu

Professional career

BIOGRAPHY:
Andreas Oser has been working in the IP field since 1991, became a German and European patent attorney in 1995 and has been managing partner at Prüfer & Partner since 2002.
In addition he holds an LL.M. degree in International Intellectual Property Laws (University of Hagen).
Prior to working in the IP field, he studied chemistry at the University of Freiburg i. Brsg., and then completed his Ph.D. and postdoctorate scientific work at the Max Planck Institute for Biochemistry in Munich.

LANGUAGES:
German, English, French

Specialist areas of activity

ACTIVITIES:

  • Patent prosecution (drafting, examination)
  • High number of opposition and appeal proceedings at the European Patent Office
  • Patent litigation:
    • Patent infringement proceedings before German courts
    • nullity proceedings up to the highest instance, the Federal Supreme Court; also covering coordinated and complex EU-wide litigation activities
  • Infringement and validity opinions, freedom-to-operate (FTO) analyses, due diligence

Andreas Oser was and is currently involved in many litigation cases, among others related to medical devices and important drug products.

AREAS OF EXPERTISE:

chemistry, pharmaceuticals, life science and biotechnology, in particular:

  • medicaments and drugs (active substances, formulations), biopharmaceuticals
  • biological materials, DNA-related inventions and vaccines
  • therapeutic and diagnostic methods
  • medical products and devices and targeted drug delivery
  • polymers, fibre materials, composites
  • semiconductors, LEDs, OLEDs and other optical materials and optoelectronic devices,
  • batteries and their components

Publications and memberships:

Publications

Oser A. and Sonnenhauser S., JUVE Handbuch Wirtschaftskanzleien 2022/2023, 773-774: “Plausibilität – ein ungelöstes Problem bei der Patenterteilung”

Schmidt T. and Oser A., GRUR Int 2019, 737: “New medical uses of known medical devices – A new perspective on purpose-limited product protection for medical devices in Europe”

Oser A. in GRUR Int 1998, 648 (=IIC 30, 1-18, 1999): “Patenting (Partial-)Gene Sequences”

Oser A., PATENTS & LICENSING 1998, 30: “EU Directive on Legal Protection of Biotech Inventions”

Oser A. and Bavec S., AIPPI Japan 2004 (Vol. 49 No. 7), 503: “Biotech Inventions in Europe”

Oser A. in GRUR Int 2006, 539 (=IIC 37, 520-550, 2006): “European Patent Litigation Agreement – Admissibility and Future of a Patent Dispute Regulation in Europe”

Thieme R„ Lay H., Oser A., Lehmann J., Wrissenberg S. and Boos W., Eur, J.Biochem. 160, 83-91 (1986)

Oser A., Roth W.K. and Valet G., Nucl. Acids Res. 16, 1181-1196 (1988)

Oser A. and Valet G., Nucl. Acids Res. 16, 8178 (1988)

Rothe G., Oser A. and Valet G., Naturwissenschaften 75, 354-355 (1988)

Oser A., Collasius M. and Valet G., Anal.Biochem. 191(2), 295-301 (1990)

Oser A. and Valet G., Angewandte Chemie International Edition 29(10), 1167-1169 (1990)

Rothe G., Banati R., Oser A., Assfalg-Machleidt I., Mangel W.F., Machleidt W., Kreutzberg G.W. and Valet G., Journal Immunol. Methods. 138(1), 133-135 (1991)

Oser A. and Valet G. (1988), Patent Applications WO8907606A, DE3804243A

Memberships

Chamber of Patent Attorneys
epi – European Patent Institute
Member of the Biotech Committee of the epi
AIPPI – International Association for the Protection of Intellectual Property
FICPI – International Federation of Intellectual Property Attorneys
LES – Licensing Executives Society
GDCh – Gesellschaft Deutscher Chemiker

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My factors for success? Technology and law in a humane manner!

Dr. Christian Gärtner

Dr.-Ing., Dipl.-Ing. (Process Engineering)
Master of Science in Chemical Engineering (Univ. of Wisconsin)
Patent Attorney, European Patent Attorney,
European Trademark & Design Attorney
Registered Representative before the Unified Patent Court
Registered Representative before the Austrian Patent Office

+49 89 69 39 21-0gaertner@pruefer.eu

Professional career

BIOGRAPHY:
Dr. Christian Gärtner has been working as a patent professional at Prüfer & Partner since December 2013, and he has been German Patent Attorney and European Patent Attorney since 2017.
Previously, he was a research associate at Chair 2 for Technical Chemistry at the Technical University of Munich and was responsible for a co-operation project for the dehydrogenation of hydrocarbons with Solvay SA in Brussels.
Prior to that, Dr. Christian Gärtner worked with Prof. James A. Dumesic as a research associate at the Heterogeneous Catalysis Group at the Department of Chemical and Biological Engineering at the University of Wisconsin – Madison, USA, and worked on the conversion of biomass to fuels. He graduated his studies in Chemical Engineering as Master of Science.
Dr. Christian Gärtner has gained practical experience in the industry through internships at BASF SE (technical development, acid gas scrubbing) and at Robert Bosch GmbH, department of polymer technology technology in Waiblingen.
Dr. Christian Gärtner graduated with distinction in process engineering at the University of Stuttgart.

LANGUAGES:
German, English, Spanish

Specialist areas of activity

ACTIVITIES:

  • Patent drafting and patent prosecution before the German Patent Office (DPMA) and the EPO
  • Opposition and appeal proceedings
  • Expert opinions
  • Participation in patent litigation

AREAS OF EXPERTISE:

  • heterogeneous catalysis
  • process engineering
  • chemical processes
  • materials
  • reaction technology
  • thermodynamics
  • food technology
  • medical technology
  • formulations
  • sports equipment

Publications and memberships

Publications

C.A. Gärtner, A.C. van Veen, J.A. Lercher: “Oxidative dehydrogenation of ethane on dynamically rearranging supported chloride catalysts”, Journal of the American Chemical Society 136 (36), 12691-12701

C.A. Gärtner, A.C. van Veen, J.A. Lercher: “Highly Selective Supported Alkali Chloride Catalysts for the Oxidative Dehydrogenation of Ethane”, Topics in Catalysis 57 (14-16), 1236-1247

C.A. Gärtner, A.C. van Veen, J.A. Lercher: “Oxidative Dehydrogenation of Ethane: Common Principles and Mechanistic Aspects”, ChemCatChem 5 (11), 3177–3403

C.A. Gärtner, J.C. Serrano-Ruiz, D.J. Braden, J.A. Dumesic: “Ketonization Reactions of Carboxylic Acids and Esters over Ceria – Zirconia as Biomass-Upgrading Processes”, Industrial & Engineering Chemistry Research 49 (13), 6027-6033

C.A. Gärtner, J.C. Serrano-Ruiz, D.J. Braden, J.A. Dumesic: “Catalytic Upgrading of Bio-Oils by Ketonization”, ChemSusChem 2 (12), 1121-1124

C.A. Gärtner, J.C. Serrano-Ruiz, D.J. Braden, J.A. Dumesic: “Catalytic coupling of carboxylic acids by ketonization as a processing step in biomass conversion”, Journal of Catalysis 266 (1), 71-78

E.L. Kunkes, D.A. Simonetti, R.M. West, J.C. Serrano-Ruiz, C.A. Gärtner, J.A. Dumesic: “Catalytic conversion of biomass to monofunctional hydrocarbons and targeted liquid-fuel classes”, Science 322 (5900), 417-421

R.M. West, Z.Y. Liu, M. Peter, C.A. Gärtner, J.A. Dumesic: “Carbon–carbon bond formation for biomass-derived furfurals and ketones by aldol condensation in a biphasic system”, Journal of Molecular Catalysis A: Chemical 296 (1), 18-27

Memberships

epi – European Patent Institute
Chamber of Patent Attorneys
FICPI – International Federation of Intellectual Property Attorneys
VDI – Association of German Engineers
DECHEMA – Society for Chemical Engineering and Biotechnology

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All success comes from trust

Dr. Susanne Sonnenhauser

Dr. rer. nat., Dipl.-Biol., German Patent Attorney,
European Patent Attorney, European Trademark & Design Attorney
Registered Representative before the Unified Patent Court
Registered Representative before the Austrian Patent Office

+49 89 69 39 21-0sonnenhauser@pruefer.eu

Professional career

BIOGRAPHY:
Ms Sonnenhauser has been working in the field of intellectual property since 2005, and is admitted as a German Patent Attorney and European Patent Attorney. She has been with Prüfer & Partner since 2008.

Susanne Sonnenhauser has studied biology at the Technical University of Munich with a focus on genetics, microbiology and immunology and has graduated in 2001 with a diploma thesis in the field of analysis of signal transduction in cells. Subsequently, she completed her doctoral thesis in the field of regulation of the immune response.

LANGUAGES:
German, English, French

Specialist areas of activity

ACTIVITIES:

  • Patent prosecution (patent drafting; examination proceedings)
  • opposition and appeal proceedings
  • Infringement and validity opinions, freedom-to-operate (FTO)-analyses, due diligence
  • consultancy with regard to trademarks (trade mark application, developing of a trade mark strategy, developing of a trade mark portfolio)

AREAS OF EXPERTISE:
Pharma, life science and biotechnology, in particular:

  • medicaments (active substances, formulations), biopharmaceuticals
  • virology and genetic engineering
  • biological materials, DNA-related inventions and vaccines
  • therapeutic and diagnostic methods
  • medical products and devices, targeted drug delivery
  • medical technology (such as balloon catheters)

Publications and memberships

Publications

Oser A. und Sonnenhauser S., JUVE Handbuch Wirtschaftskanzleien 2022/2023, 773-774: “Plausibilität – ein ungelöstes Problem bei der Patenterteilung”

Memberships

Chamber of Patent Attorneys
epi – European Patent Institute
FICPI – International Federation of Intellectual Property Attorneys

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Man, life’s going to keep pushing you around, but you have to keep playing.
in "A simple life" from Min Jin Lee

Dr. Ok Joo Lee

B.S., M.S. und Dr. rer.nat.
(Pohang University of Science and Technology, POSTECH, Korea)
Korean Patent Attorney

+49 89 69 39 21-0lee@pruefer.eu

Professional career

BIOGRAPHY:
2006-2017 Patent Examiner at the Korean Intellectual Property Office (KIPO)
2018-2019 Litigation performer at KIPO
2015 Admission as a Korean Patent Attorney
Dr. Ok Joo Lee has been working as a patent professional at Prüfer & Partner since February 2022. She mainly handles patent prosecution before the European Patent Office.
She worked as a patent examiner and as a litigation performer at KIPO. Prior to her work at KIPO, she held the following scientific and technical positions: she was employed at LG Chem (now LG Energy Solution, Korea) in the lithium secondary battery department; as a researcher in the field of block copolymers at the Max-Planck-Institute for polymer research (Germany); researcher in the field of organic thin film transistors at the Electronics and Telecommunications Research Institute (Korea).
She studied chemical engineering at POSTECH (Korea) and completed her Ph.D. degree there in an electronic material processing program.

LANGUAGES:
Korean (mother tongue), English, Japanese, German (basic knowledge)

Specialst areas of activity

ACTIVITIES:

  • Dr. Ok Joo Lee mainly handles patent prosecution before the European Patent Office.

AREAS OF EXPERTISE:

  • Secondary batteries
  • Polymer film
  • Photoresist
  • Inorganic materials/particles and their processing
  • Nanomaterials
  • Electroplating
  • Metal alloy
  • Organic thin film transistor
  • Bioprocessing technology

Publications and memberships

Publications

OJ Lee et al., Macromo. Res., 24(10), 2016, pp. 851-855

DH Kim, OJ Lee et al., J. Nanosci. Nanotech., 6(12) 2006, pp. 3871-3876(6)

PS Lee, OJ Lee, Chem. Mat., 2005 17, pp. 6181-6185

OJ Lee et al., Syn. Met., 2005 148(3) pp.263-266

OJ Lee et al., Appl. P. Letters, 82, 2003, pp. 3770-3772

OJ Lee et al., MRS, 2003 pp. 41-46

OJ Lee et al., Appl. Physics A, 2003 75, pp. 599-602

OJ Lee et al., J. Noncrystalline Solids, 2002 298(2-3) pp. 287-292 SH Jeong,

OJ Lee et al., Chem. Mat., 2002 14(4) pp. 1859-1862

Memberships

No memberships