Bernhard Siemon — 2 Patents at Mannesmann Ag

Bernhard Siemon has been granted 2 US patents while listed as an inventor at Mannesmann Ag. The first was granted in 1981 and the most recent in June 1988. Bernhard Siemon ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Bernhard Siemon in Hannover, DE.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4753093	Planarity control in the rolling of flat stock	Heinz Teichert	1988-06-28
4295249	Combing machine	—	1981-10-20

Bernhard Siemon — 2 Patents

Issued Patents All Time

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