Patent attorney profile
Dr.-Ing. Dipl.-Ing. (Univ.) Klaus Castell
Patent attorney (Patentanwalt), Patentanwaltskanzlei Liermann-Castell, Düren
- Checked in the official register of patent attorneys (Patentanwaltsverzeichnis) of the Chamber of Patent Attorneys (Patentanwaltskammer) on 28 October 2026
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Details from the official register of patent attorneys (Patentanwaltsverzeichnis) of the Chamber of Patent Attorneys (Patentanwaltskammer)
- Name
- Dr.-Ing. Dipl.-Ing. (Univ.) Klaus Castell
- Professional title
- Patent attorney (Patentanwalt)
- Admitted since
- 27 January 1994
- Firm
- Patentanwaltskanzlei Liermann-Castell
- Firm address
- Oberstr. 135, 52349 Düren
- Phone
- (02421) 40 50 0
- Fax
- (02421) 40 50 10
- office@liermann-castell.de
- Website
- www.liermann-castell.de
- Further office
- Aachener und Münchener Allee 1, 52074 Aachen; Karl-Heinz-Beckurts-Str. 13, 52428 Jülich; Nederlinger Str. 6, 80638 München; Hahngasse 30/Top 17, 1090 Wien
Source: Amtliches Patentanwaltsverzeichnis der Patentanwaltskammer (§ 29 PAO), as of 28 October 2026. The register is kept in German.
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