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Sulzbach-Rosenberg, Germany

Eisenwerk-gesellschaft Maximilianshutte

USPTO Granted Patents = 2

Forward Citations = 13

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5 inventors (with patents filed for the assignee):

Karl Brotzmann (1 out of 43 patents)

Paul G Mantey (1 out of 5 patents)

Erwin Jericho (1 out of 1 patent)

4. Frank Weber (1 out of 1 patent)

5. Werner Friedrichs (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 4356035 - Steelmaking process (1982-10-26),

2. 4262516 - Pierced metal tube blanks and methods of making such blanks (1981-04-21),

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#4 in Sulzbach-Rosenberg

#10,556 in Germany

Sulzbach-Rosenberg, Germany

Eisenwerk-gesellschaft Maximilianshutte

Forward Citations = 13

5 inventors:

Karl Brotzmann (1 out of 43 patents)

Paul G Mantey (1 out of 5 patents)

Erwin Jericho (1 out of 1 patent)

4. Frank Weber (1 out of 1 patent)

5. Werner Friedrichs (1 out of 1 patent)

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