Assignee
Inventors
- Nikolai Veselinov Neichev (14 patents)
- Todor Stefanov Stoyanov (1 patents)
- Georgi Yordanov Enchev (4 patents)
- Petar Rusev Rusev (10 patents)
- Kaloyan Stefanov Nikov (8 patents)
- Stoyan Zhivkov Boshev (35 patents)
US Patent 11048598 · Granted Jun 29, 2021