Assignee
Inventors
- Subhash Chandra Ray (3 patents)
- Baldev Singh (57 patents)
- Hiralal Prasad (3 patents)
- Prodyot Kumar Sarkar (3 patents)
- Pashupati Dutta (4 patents)
- Shyam Kishore Roy (4 patents)
- Anup Kumar Bandyopadhyay (3 patents)
- Unknown
US Patent 7455827 · Granted Nov 25, 2008