Forward Citations = 40

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9 inventors (with patents filed for the assignee):

Adolf Swozil (2 out of 7 patents)

Alfred Hirschvogel (1 out of 2 patents)

Gerhard Ullmann (1 out of 6 patents)

4. Ernst Freundlinger (1 out of 1 patent)

5. Gunter Freitag (1 out of 2 patents)

6. Alfred Krahl (1 out of 2 patents)

7. Gunter Wenzel (1 out of 2 patents)

8. Wilhelm Geiger (1 out of 1 patent)

9. Erwin Schwarz (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 4315575 - Vacuum support for burst protection device (1982-02-16),

2. 4255363 - Column seal (1981-03-10),

3. 4216266 - Flexible graphite sheet material treated with an alkali metal salt (1980-08-05),

4. 4211594 - Joining together shaped bodies of polytetrafluoroethylene (1980-07-08),

Sigri Elektrographit is a leading manufacturer of graphite and carbon products. With over 100 years of experience, we offer high-quality solutions for various industries such as automotive, energy, and electronics. Our products range from graphite electrodes to furnace linings, serving the needs of our global customers. As a Gesellschaft MIT Beschrankter Haftung (limited liability company), we are committed to innovation, quality, and sustainability.

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

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USPTO Data Jan 1 1976 - Dec 9 2025

4 Patents

#57 in Munich

#68 in Georgia

Munich, Georgia

Sigri Elektrographit Gesellschaft MIT Beschrankter Haftung