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About us

For more than 90 years, we have been supporting companies, inventors and entrepreneurs in protecting their innovations and brands.

Today, we advise clients from a wide range of sectors at our offices in Bielefeld, Kassel, Munich and Freiburg, combining technical, legal and commercial expertise under one roof.

Our approach goes far beyond simply filing applications for intellectual property rights. We develop bespoke intellectual property strategies, support innovation processes and help companies transform their ideas into long-term, sustainable competitive advantages

Personal points of contact, short lines of communication and a trusting working relationship have always formed the basis of our work, because: successful intellectual property work begins with an understanding of the people and companies behind the innovations.

What defines us

International experience
We advise and represent clients from both Germany and abroad, combining international experience with personalised support and strategic foresight.
Long-term partnerships
Many clients have placed their trust in our firm for decades. We see this trust as a commitment to the highest standards of quality and personal dedication.
Technical and legal expertise
Technical understanding and legal expertise go hand in hand at our firm. This enables us to develop tailor-made solutions for complex issues.
We understand your business
Every business is unique. That is why we develop bespoke intellectual property strategies tailored to your commercial objectives and future plans.
Personalised support
Dedicated points of contact, short decision-making processes and a trusting working relationship form the basis of our consultancy. Personal and on an equal footing.

Facts & Figures

90+
Years of
experience

A trusted partner for businesses and inventors for more than nine decades

8
Lawyers and specialists

Patent attorneys, solicitors and European patent attorneys with a range of technical and legal specialisms

25
Staff

An experienced team of highly qualified specialists providing professional support to national and international clients

4
Locations

Personalised advice, short lines of communication and expert support. Regionally based and working on your behalf internationally

IP
Comprehensive expertise

Patent, trade mark, design and utility model law, as well as related areas of intellectual property law

&
National and
international

Advice for medium-sized enterprises, large corporations, start-ups and inventors both at home and abroad

Chronik

2022
Portrait Dr. Jan Specht
Dr. Jan Specht verstärkt die Kanzlei
2015
Neuer Standort in Freiburg
in Kooperation mit Patentanwalt
Uwe Winkler
2012
Patentanwalt
Dr. Hubertus Kleine wird Partner
2010
Neuer Standort in Kassel

Patentanwalt Dr. Hubertus Kleine verstärkt die Kanzlei
2007
Portrait Dr. Thomas Wonderschütz
Patentanwalt
Dr. Thomas Wonderschütz
ergänzt die Kanzlei
2006
75-jähriges Jubiläum

Eröffnung einer Dependance in München
2005
Umzug in neue Kanzleiräume
Am Zwinger 2 in Bielefeld
2004
Patentanwalt Karl-Otto Loesenbeck verlässt die Kanzlei

Rechtsanwältin Anja-Silja Loesenbeck wird Partnerin
2003
Portrait Anja-Silja Loesenbeck
Rechtsanwältin
Anja-Silja Loesenbeck
tritt in die Kanzlei ein
2000
Patentanwalt Alexander Stracke verlässt die Kanzlei

Patentanwalt Peter Specht übernimmt als Partner Verantwortung für die weitere Entwicklung der Kanzlei

Patentanwalt Jan Dantz wird Partner
1999
Patentanwalt Jan Dantz
beginnt seine Tätigkeit in der
Kanzlei
1998
Patentanwalt Peter Specht verstärkt das Team der Kanzlei
1981
50-jähriges Jubiläum
1965
Portrait Dr. Karl-Otto Loesenbeck
Dr. Karl-Otto Loesenbeck
wird Teil der Kanzlei
1960
Patentanwalt Alexander Stracke
schließt sich der Kanzlei an
1956
Die Kanzlei feiert
25-jähriges Bestehen
1931
Portrait Dr. Otto Loesenbeck
Patentanwalt Dr. Otto Loesenbeck
gründet die Kanzlei