Forward Citations = 8

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4 inventors (with patents filed for the assignee):

Frank Puttkammer (5 out of 9 patents)

Monika Puttkammer (1 out of 1 patent)

Gunther Zscherpe (1 out of 1 patent)

4. Torsten Wolf (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 7367592 - Marking substance and security markings for testing the authenticity of documents (2008-05-06),

2. 7301682 - Optically variable security attribute (2007-11-27),

3. 7116406 - Security element structure for documents, devices for checking documents with such security elements, method for the use thereof (2006-10-03),

4. 7090917 - Security strips (2006-08-15),

5. 5911298 - Multi-compact-sensor adapted for mounting at an ascending angle (1999-06-15),

WHD Elektronische Prueftechnik GmbH is a leading manufacturer of high-quality testing equipment for the electronics industry. With over 30 years of experience, we provide innovative solutions for testing and measuring electronic components, circuits, and systems. Our products are known for their precision, reliability, and efficiency, helping our customers improve their production processes and ensure the quality of their products.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

5 Patents

#58 in Dresden

#6,008 in Germany

Dresden, Germany

Whd Elektronische Prueftechnik Gmbh

Forward Citations = 8

4 inventors:

Frank Puttkammer (5 out of 9 patents)

Monika Puttkammer (1 out of 1 patent)

Gunther Zscherpe (1 out of 1 patent)

4. Torsten Wolf (1 out of 1 patent)

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