Forward Citations = 171

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5 inventors (with patents filed for the assignee):

Erwin Isler (4 out of 4 patents)

Tilo Callenbach (1 out of 8 patents)

Paul Boesch (1 out of 4 patents)

4. Hans R Wey (1 out of 1 patent)

5. Heinz Büttgen (1 out of 9 patents)

6 patents: Sort by Forward Citations

1. 6355017 - Cannula for medical syringes (2002-03-12),

2. 5383604 - Water outlet head for a sanitary fitting (1995-01-24),

3. 5022791 - Process, anchoring member, and clamping device for clamping a rod (1991-06-11),

4. 4664573 - Mine wall support anchor (1987-05-12),

5. 4538940 - Arrangement for force transfer between longitudinally stressed members (1985-09-03),

6. 4523880 - Tie rod assembly for rock borehole anchor (1985-06-18),

Company Overview

H. Weidmann A.G. is a leading manufacturer of high-quality electrical insulation materials. With over 140 years of experience, the company offers a wide range of products and solutions for the electrical industry. From transformerboard to pressboard, Weidmann delivers top-notch insulation solutions for various applications. Visit their website to learn more about their products and services.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

6 Patents

#3 in Rapperswil

#1,479 in Switzerland

Rapperswil, Switzerland

H. Weidmann A.g.

Forward Citations = 171

5 inventors:

Erwin Isler (4 out of 4 patents)

Tilo Callenbach (1 out of 8 patents)

Paul Boesch (1 out of 4 patents)

4. Hans R Wey (1 out of 1 patent)

5. Heinz Büttgen (1 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: H. Weidmann A.g.. Retrieved from https://idiyas.com/company/h-weidmann-a-g

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]