DH

Dirk Hammel

IBM: 1 patents #44,794 of 70,183Top 65%
Overall (All Time): #3,515,874 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6585906 Method for recycling a disk having a layered structure on a glass substrate Holger Roehl, Theo Schmitz, Johannes Windeln 2003-07-01