% Expired Patents = 14.3

Trademarks = 1

Forward Citations = 35

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9 inventors (with patents filed for the assignee):

Gerard Schaeffer (3 out of 3 patents)

Heinz Hinterseer (2 out of 6 patents)

Kurt Rosenmayer (1 out of 1 patent)

4. Gernold Stämmler (1 out of 1 patent)

5. Reiner Huber (1 out of 1 patent)

6. Jürgen Feil (1 out of 1 patent)

7. Georg Trunk (1 out of 1 patent)

8. Gunter Gottwald (1 out of 1 patent)

9. Dieter Hoffarth (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 6627028 - Method for welding thermoplastic foils (2003-09-30),

2. 6589042 - Apparatus for shaping thermoplastics materials (2003-07-08),

3. 6589041 - Apparatus for shaping thermoplastic materials (2003-07-08),

4. 6354352 - Method for welding thermoplastic foils (2002-03-12),

5. 5219581 - Cooling device for a blow extruder (1993-06-15),

6. 4938903 - Highly intensive cooling process and apparatus for the production of (1990-07-03),

7. 4439041 - Feed bushing for single-screw extruders (1984-03-27),

Company Overview

Paul Kiefel GmbH is a leading manufacturer of high-quality precision tools and equipment for the automotive industry. With over 50 years of experience, they offer a wide range of products including tool presetter systems, cutting tools, and tool holders. Their innovative solutions are known for their precision, reliability, and durability, making them a trusted partner for businesses seeking top-notch tooling solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

7 Patents

#4 in Freilassing

#4,860 in Germany

Freilassing, Germany

Paul Kiefel Gmbh

Forward Citations = 35

9 inventors:

Gerard Schaeffer (3 out of 3 patents)

Heinz Hinterseer (2 out of 6 patents)

Kurt Rosenmayer (1 out of 1 patent)

4. Gernold Stämmler (1 out of 1 patent)

5. Reiner Huber (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Paul Kiefel Gmbh. Retrieved from https://idiyas.com/company/paul-kiefel

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]