Kenneth E. Riegel — 2 Patents at World Resources

Kenneth E. Riegel has been granted 2 US patents while listed as an inventor at World Resources. The first was granted in 2004 and the most recent in May 2006. Kenneth E. Riegel ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Kenneth E. Riegel in Orwigsburg, PA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
7048774	Recovery of metal values from cermet	Peter T. Halpin, Ulrich R. Schlegel	2006-05-23
6830605	Recovery of metal values from cermet	Peter T. Halpin, Ulrich R. Schlegel	2004-12-14