Assignee
Inventors
- Kostadin Dimitrov Yanev (15 patents)
- Angel Marinov Angelov (4 patents)
- Kamen Radev Dobrev (4 patents)
- Asen Angelov Marinov (3 patents)
- Paul Roybal (6 patents)
- Bojidar Kostadinov Vitanov (2 patents)
US Patent 8343013 · Granted Jan 1, 2013