Friedhelm Detzner — 3 Patents at Amazon

Friedhelm Detzner has been granted 3 US patents while listed as an inventor at Amazon. The first was granted in 1987 and the most recent in December 2003. Friedhelm Detzner ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Friedhelm Detzner in Duisburg, DE.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
6669183	Spring element of elastic material	—	2003-12-30
6274211	Kinetic energy absorbing element	—	2001-08-14
4660811	Synthetic-resin compression spring	Dieter Muhlhahn, Gino Marsella, Dieter Simons, Horst Schafer, Hermann Haarkotter	1987-04-28

Friedhelm Detzner — 3 Patents

Issued Patents All Time

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