Assignee
DATUM INC
US·5 granted patents·569 citations·filing 1998–2000
Top patents by PatentIndex Score
5 records- 0189US6393126B1System and methods for generating trusted and authenticatable time stamps for electronic documentsDATUM INC·Filed 2000·Granted May 21, 2002·116 cites·29 claims
- 0289US6370629B1Controlling access to stored information based on geographical location and date and timeDATUM INC·Filed 1998·Granted Apr 9, 2002·357 cites·32 claims
- 0374US6133800ASubminiature microwave cavityDATUM INC·Filed 1999·Granted Oct 17, 2000·42 cites·29 claims
- 0462US6377585B1Precision reference generation system and methodDATUM INC·Filed 1998·Granted Apr 23, 2002·34 cites·10 claims
- 0553US6172570B1Laser light quantum systemDATUM INC·Filed 1999·Granted Jan 9, 2001·20 cites·25 claims
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