Assignee
Inventors
- Volkmar Sottke (22 patents)
- Doris Lenk (2 patents)
- Hartmut Westphal (21 patents)
- Hendrikus Van Den Berg (22 patents)
- Peter R. Leicht (27 patents)
- Mark S. Greenfield (29 patents)
- Yixiong Liu (54 patents)
US Patent 9017809 · Granted Apr 28, 2015