STEIN Ingenieure GmbH
Konrad Zuse Str. 6
44801 Bochum

Tel. +49 234 / 5167 – 110
Fax +49 234 / 5167 – 119
Sitz und Registergericht Bochum (HRB 18730)

Umsatzsteuer-ID (USt.-IDNr.):
DE 174 730 763

Managing Director:
Dr.-Ing. Robert Stein
Dipl.-Ing. Andreas Beuntner
Dipl.-Ing. Beate Borchardt

Editorial responsibility:
Dr.-Ing. Robert Stein


The author reserves the right not to be responsible for the topicality, correctness, completeness or quality of the information provided. Liability claims against the author, which refer to material or non-material damages, which have been caused by the use or non-use of the information provided or by the use of incorrect and incomplete information, are fundamentally excluded, provided that there is no demonstrable intentional or grossly negligent fault on the part of the author. All offers are subject to change and non-binding. The author expressly reserves the right to change, supplement or delete parts of the pages or the entire offer without separate announcement or to discontinue the publication temporarily or permanently.

Note on external links

As far as this website links to other websites, we point out that we have no influence on the design and content of the linked pages and that we do not adopt their content as our own. This applies to all external links on this site. For linked pages, it applies that illegal contents were not recognizable at the time of linking. The links are regularly checked for illegal content and in the event of legal infringements they are removed immediately.

This statement applies to all links and references set within the author's own Internet offer as well as to external entries in guest books, discussion forums and mailing lists set up by the author. For illegal, incorrect or incomplete contents and in particular for damages resulting from the use or non-use of such information, the provider of the page to which reference is made shall be solely liable, not the person who merely refers to the respective publication via links.


The author endeavors to observe the copyrights of the graphics, sound documents, video sequences and texts used in all publications, to use graphics, sound documents, video sequences and texts created by himself or to use license-free graphics, sound documents, video sequences and texts. All brand names and trademarks mentioned within the Internet offer and, if applicable, protected by third parties are subject without restriction to the provisions of the respectively valid trademark law and the ownership rights of the respective registered owners. The mere mention of a trademark does not imply that it is not protected by the rights of third parties! The copyright for published objects created by the author himself remains solely with the author of the pages. Any duplication or use of objects such as diagrams, sounds or texts in other electronic or printed publications is not permitted without the author's agreement.

Picture credits Homepage

  • Manhole cover ©
  • Dam ©
  • Man on blackboard ©
  • Pipejacking ©

Legal validity of this disclaimer

This disclaimer is to be regarded as part of the internet publication which you were referred from. If sections or individual terms of this statement are not legal or correct, the content or validity of the other parts remain uninfluenced by this fact.


Our data protection declaration, which at the same time represents the information of the persons concerned in accordance with Articles 13 and 14 of the EU data protection basic regulation, can be found under the following link.