Siegfried Sieben — 1 Patent at General Motors

Siegfried Sieben has been granted 1 US patent while listed as an inventor at General Motors. All of these patents were granted in 1990. Siegfried Sieben ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Siegfried Sieben in Nauheim, DE.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4969421	Cooling device for an internal combustion engine	Bernhard Haner	1990-11-13

Siegfried Sieben — 1 Patent

Issued Patents All Time

Patent Widget