6 Utility Patents
#5 in Zollikofen
#6,210 in Switzerland
#695,828 in the World
Forward Citations = 218
Company Filing History:

Protek Ag
Gebruder Sulzer, Aktiengesellschaft Protek A.g.
4. 1 out of 1
Gebruder Selzer Ag
where one patent can have more than one assignee
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