Forward Citations = 51

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5 inventors (with patents filed for the assignee):

Hans Knoepfel (3 out of 3 patents)

Siegfried Grueninger (2 out of 4 patents)

Roland Graf (1 out of 5 patents)

4. Hans Knopfel (1 out of 2 patents)

5. Siefgried Grueninger (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 9670053 - Apparatus and method for transferring springs with transport wheel (2017-06-06),

2. 5868240 - Spring conveyor apparatus (1999-02-09),

3. 5788051 - Device for transferring springs to an assembly machine (1998-08-04),

4. 5713115 - Electronically regulated apparatus for coiling springs (1998-02-03),

5. 5575460 - Spring core for a mattress (1996-11-19),

Spuehl Ag is a leading Swiss provider of construction and engineering services, specializing in civil infrastructure projects. With over 50 years of experience in the industry, Spuehl Ag has established a reputation for delivering high-quality and innovative solutions to its clients. The company is committed to sustainability and environmental responsibility, and works closely with local communities to ensure the long-term success of its projects.

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

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USPTO Data Jan 1 1976 - Sep 29 2026

5 Patents

#6 in Wittenbach

#1,704 in Switzerland

Wittenbach, Switzerland

Spuehl Ag