Site Notice

WEIDNER | STERN | JESCHKE Patentanwälte Partnerschaft mbB
Arnstädter Straße 50
99096 Erfurt

Register of Partnerships: PR 500068
Registration court: Amtsgericht Jena


Phone: +49 (361) 551170-0
Telefax: +49 (361) 551170-9


Sales tax identification number according to § 27 a of the Sales Tax Law:
DE 22 90 65 441

Supervisory authority

Im Tal 29, 80331 München

Job title and professional regulations

Dr. Alexander Jeschke (Partner)
Job title: Patentanwalt

Ulrich Weidner (Partner)
Job title: Patentanwalt

Dr. Andreas Winkler
Job title: Patentanwalt

Authorisation granted by: Germany

The following professional regulations apply: Patentanwaltsordnung (PAO), Berufsordnung für Patentanwälte (BOPA), Standesregeln FICPI, Code of Professional Conduct des epi [Fundstellen der Vorschriften: Homepage der Patentanwaltskammer (PAK) im Bereich “aktuell”:
Regulations available at:

Information regarding professional liability insurance

Name and registered office of the insurer:
Zurich Insurance plc
53287 Bonn

Scope of insurance:
bis 09.09.2023

Responsible for the content according to § 55(2) RStV

WEIDNER | STERN | JESCHKE Patentanwälte Partnerschaft mbB
Dr. Alexander Jeschke
Arnstädter Straße 50
D-99096 Erfurt

EU dispute resolution

The European Commission provides a platform for online dispute resolution (ODR):
Our e-mail address can be found above in the site notice.

We are not willing or obliged to participate in dispute resolution proceedings before a consumer arbitration board.

Liability for Contents

As service providers, we are liable for own contents of these websites according to Paragraph 7, Sect. 1 German Telemedia Act (TMG). However, according to Paragraphs 8 to 10 German Telemedia Act (TMG), service providers are not obligated to permanently monitor submitted or stored information or to search for evidences that indicate illegal activities.

Legal obligations to removing information or to blocking the use of information remain unchallenged. In this case, liability is only possible at the time of knowledge about a specific violation of law. Illegal contents will be removed immediately at the time we get knowledge of them.

Liability for Links

Our offer includes links to external third party websites. We have no influence on the contents of those websites, therefore we cannot guarantee for those contents. Providers or administrators of linked websites are always responsible for their own contents.

The linked websites had been checked for possible violations of law at the time of the establishment of the link. Illegal contents were not detected at the time of the linking. A permanent monitoring of the contents of linked websites cannot be imposed without reasonable indications that there has been a violation of law. Illegal links will be removed immediately at the time we get knowledge of them.


Contents and compilations published on these websites by the providers are subject to German copyright laws. Reproduction, editing, distribution as well as the use of any kind outside the scope of the copyright law require a written permission of the author or originator. Downloads and copies of these websites are permitted for private use only.
The commercial use of our contents without permission of the originator is prohibited.

Copyright laws of third parties are respected as long as the contents on these websites do not originate from the provider. Contributions of third parties on this site are indicated as such. However, if you notice any violations of copyright law, please inform us. Such contents will be removed immediately.