Cambridge, Massachusetts
United States
11
2013-05-16
The entities that hold a legal rights for patent applications filed by inventor Engberg David:
David Engberg from Cambridge, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Logging access attempts to an area
#2 | 2012-11-01Physical access control
#3 | 2008-09-04Physical access control
#4 | 2008-04-01Physical access control
#5 | 2005-07-14Batch OCSP and batch distributed OCSP
#6 | 2005-07-14Signature-efficient real time credentials for OCSP and distributed OCSP
#7 | 2005-03-10Controlling access to an area
#8 | 2005-02-24Logging access attempts to an area
#9 | 2005-02-24Controlling access using additional data
#10 | 2005-02-24Disseminating additional data used for controlling access
#11 | 2005-02-10Controlling group access to doors
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