Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Personal date/time notary device

Personal date/time notary device

US Patent 5936149 · Granted Aug 10, 1999

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Self-labeling digital storage unit2013
Enhanced digital data collector for removable memory modules2011
Audio cassette emulator with cryptographic media distribution control2008
Secure electronic messaging system requiring key retrieval for deriving decrypti2006
Enhanced digital data collector for removable memory modules2006
Method for providing location certificates2005
Audio cassette emulator2005
Personal date/time notary device2005
Personal date/time notary device2002
Method for preventing inadvertent betrayal by a trustee of escrowed digital secr2001
Method for preventing inadvertent betrayal by a trustee of escrowed digital secr2000
Method and apparatus for validating travelling object-oriented programs with dig2000