Assignee
Inventors
- Adolf Zajber (18 patents)
- Dirk Letzel (7 patents)
- Wilfried Milewski (3 patents)
- Thomas Fest (12 patents)
- Heinz-Dietrich Schneider (2 patents)
- Lothar Fischer (9 patents)
- Herbert Brotzki (4 patents)
US Patent 7159642 · Granted Jan 9, 2007