Details according to § 5 DDG:

Prof. Dr.-Ing. Klaus Castell, Patent Attorney (Federal Republic of Germany), European Patent Attorney, European Trademark Attorney
Oberstrasse 135
D-52349 Düren

Tel.: (02421) 40 50 0
Fax: (02421) 40 50 10
E-Mail: office@liermann-castell.de

Contact:

Tel.: (02421) 40 50 0
Fax: (02421) 40 50 10
E-Mail: office@liermann-castell.de

Sales tax:

VAT identification number according to §27 a VAT Act:
VAT DE 811 708 918

Information on professional liability insurance

The professional liability insurance is with:
R+V Allgemeine Versicherung AG
Raiffeisenplatz 1
65189 Wiesbaden
Registered office: Wiesbaden, Commercial Register No.: HRB 2188, Wiesbaden Local Court,
VAT ID No.: DE 811198334

Cover exists beyond the requirements of the EU Regulation for all patent attorneys working in the patent law firm, worldwide and without territorial restrictions.

Responsible for the content according to § 18 Abs. 2 MStV:

Prof. Dr.-Ing. Klaus Castell
Oberstrasse 135
D-52349 Düren

Dispute resolution
The European Commission provides a platform for online dispute resolution (OS): https://ec.europa.eu/consumers/odr.
You can find our email address in the legal notice above.

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

Liability for content
As a service provider, we are responsible for our own content on these pages in accordance with Section 7 (1) DDG. According to §§ 8 to 10 DDG, however, we are not obliged as a service provider to monitor transmitted or stored third-party information or to investigate circumstances that indicate illegal activity.

Obligations to remove or block the use of information in accordance with general legislation remain unaffected by this. However, liability in this respect is only possible from the time of knowledge of a specific infringement. As soon as we become aware of such infringements, we will remove this content immediately.

Liability for links
Our website contains links to external third-party websites over whose content we have no influence. Therefore, we cannot accept any liability for this third-party content. The respective provider or operator of the pages is always responsible for the content of the linked pages. The linked pages were checked for possible legal violations at the time of linking. Illegal contents were not recognisable at the time of linking.

However, permanent monitoring of the content of the linked pages is not reasonable without concrete evidence of an infringement. If we become aware of any legal infringements, we will remove such links immediately.

Copyright
The content and works created by the site operators on these pages are subject to German copyright law. Reproduction, editing, distribution and any kind of utilisation outside the limits of copyright law require the written consent of the respective author or creator. Downloads and copies of this site are only permitted for private, non-commercial use.

Insofar as the content on this site was not created by the operator, the copyrights of third parties are respected. In particular, third-party content is labelled as such. Should you nevertheless become aware of a copyright infringement, please inform us accordingly. If we become aware of any infringements, we will remove such content immediately.