Assignee
No assignee recorded.
Inventors
- Christopher Shelton (13 patents)
- Unknown
- Unknown
- Marius Paul Michiel Schilder (14 patents)
- Niels T. Ferguson (35 patents)
- David Chaum (33 patents)
- Unknown
- Unknown
- Unknown
US Patent 6035380 · Granted Mar 7, 2000
No assignee recorded.