Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Optionally moderated transaction systems

Optionally moderated transaction systems

US Patent 5131039 · Granted Jul 14, 1992

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Random sample elections2022
Precomputed and transactional mixing2021
Video copy prevention systems with interaction and compression2020
Precomputed and transactional mixing2019
Random sample elections2018
Scan-integrity election systems2012
Hidden-code voting and marking systems2012
Ballot integrity systems2009
Secret-ballot systems with voter-verifiable integrity2007
Multi-purpose transaction card system2004
Multi-purpose transaction card system2002
Electronic lock that can learn to recognize any ordinary key2001