Hinrich Kruger has been granted 5 US patents while listed as an inventor at Siemens Aktiengesellschaft. The first was granted in 1994 and the most recent in July 2003. Hinrich Kruger ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Hinrich Kruger in Braunschweig, DE.