We are Keller Schneider, your experts on intellectual property.

Keller Schneider is a merger of the former Keller & Partner Patentanwälte AG and Schneider Feldmann AG patent and trademark attorneys. The two independent companies are working in close cooperation towards a merger. Together with K&P Patentanwaltsgesellschaft mbH, we operate under the Keller Schneider logo and offer you bundled expertise.

Our Patent Attorneys

Philipp Rüfenacht
(Partner)
Swiss Patent Attorney
European Patent Attorney
Dipl. Phys. University of Bern

+41 31 310 80 80 - Bern
p.ruefenacht(at)kellerschneider.com

Dr. Martin Schneider
(Partner)
Trademark Attorney
Dr. iur. HSG

+41 43 430 32 32 - Zurich
m.schneider(at)kellerschneider.com

Mirko Schade
(Partner)
German Patent Attorney
MBA, Dipl.-Ing.

+49 89 54 80 37 37 - Munich
m.schade(at)kellerschneider.com

Werner Roshardt
(Partner)
Swiss Patent Attorney
European Patent Attorney
Dipl. Phys. ETH
Roman Stäbler
(Partner)
Swiss Patent Attorney
European Patent Attorney
Dipl. El.-Ing. ETH

+41 31 310 80 80 - Bern
r.staebler(at)kellerschneider.com​​​​​​​

Hannes Spillmann
(Partner)
Swiss Patent Attorney
European Patent Attorney
PD in Experimental Physics / Nanosciences
at University of Basel
Dipl. Chem. University of Zurich

+41 52 209 02 80 - Winterthur
h.spillmann(at)kellerschneider.com

Alexander Grosse-Kracht (Counsel)
Swiss Patent Attorney
European Patent Attorney
Dipl. Ing. Energy and process engineering

+41 43 430 32 32 - Zurich
a.grossekracht(at)kellerschneider.com

Céline Schwarzenbach
Attorney at Law
Trademark Attorney
lic. iur. Uni ZH, MIBL

+41 43 430 32 32 - Zurich
c.schwarzenbach(at)kellerschneider.com

Samuel Gutmann
Swiss Patent Attorney
European Patent Attorney
Dipl. Chem. FH, Dipl. Math. University of Bern

+41 31 310 80 80 - Bern
s.gutmann(at)kellerschneider.com

Justin Hoppler
Swiss Patent Attorney
European Patent Attorney
Dipl. Phys University of Bern

+41 31 310 80 80 - Bern
j.hoppler(at)kellerschneider.com

Stephan Kessler
Swiss Patent Attorney
European Patent Attorney
M.Sc. Biochemistry, University of Bern

+41 31 310 80 80 - Bern
s.kessler(at)kellerschneider.com​​​​​​​​​​​​​​

Evelyn Zwick
European Patent Attorney
Swiss Patent Attorney
Dipl. Phys. ETH, MBA

+41 43 430 32 32 - Zurich
e.zwick(at)kellerschneider.com

Franziska Strebel Preiswerk
Trademark Attorney
MLaw UZH

+41 43 430 32 32 - Zurich
f.strebel(at)kellerschneider.com

Rolf Oertig
European Patent Attorney
Dipl. Ing. ETH

+41 43 430 32 32 - Zurich
r.oertig(at)kellerschneider.com

Franz Möltgen
European Patent Attorney
German Patent Attorney
Dipl.-Ing. Mechanical Engineering

+49 89 54 80 37 37 - Munich
f.moeltgen(at)kellerschneider.com​​​​​​​​​​​​​​

Beate Hanika
Attorney at Law for Trademark and Design Protection

+49 89 54 80 37 37 - Munich
b.hanika(at)kellerschneider.com

Julia Hostettler
Trademark Attorney
MLaw UniLu

+41 43 430 32 32 - Zurich
j.hostettler(at)kellerschneider.com

Gerhard Wiese
European Patent Attorney
German Patent Attorney
Dipl.-Ing. (FH)

+ 49 82 62 900 50 - Mindelheim
g.wiese(at)kellerschneider.com

Our Consultants

Ueli Grüter
Attorney at Law
LL.M.

+41 43 430 32 32 - Zurich
zuerich(at)kellerschneider.com

Clarence Feldmann
European Patent Attorney
Swiss Patent Attorney
Dipl. Ing. FH

+41 43 430 32 32 - Zurich
c.feldmann(at)kellerschneider.com