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For the Inventor, By the Inventor

Ulm, Germany

Zwick Gmbh & Co

Calculating rank
USPTO Granted Patents = 2

Forward Citations = 34

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3 inventors (with patents filed for the assignee):

goldMedal Bruno Knobel (1 out of 6 patents)

silverMedal Gerhard Saum (1 out of 1 patent)

bronzeMedal Manfred Dripke (1 out of 1 patent)


2 patents:

1. 6563129 - Method and device for the contactless measurement of the deformation of a specimen to be measured (2003-05-13),
2. 5437191 - Hydraulically powered test frame with spindle-actuated valve (1995-08-01),
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USPTO Data Jan 1 1976 - Oct 27 2026

2 Patents

#51 in Ulm

#10,701 in Germany

Ulm, DE
Ulm, Germany

Zwick Gmbh & Co

Forward Citations = 34

3 inventors:

goldMedal Bruno Knobel (1 out of 6 patents)

silverMedal Gerhard Saum (1 out of 1 patent)

bronzeMedal Manfred Dripke (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Zwick Gmbh & Co. Retrieved from https://idiyas.com/company/zwick-and-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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