Rsa Data Security, Inc.
Records under this name other than patents Rsa Data Security, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 10 of 10 · Back to Rsa Data Security, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,393,447 | Method and apparatus for extracting unbiased random bits from a potentially biased source of randomness Formerly held Term ended Term ended Oct 22, 2018 · From the USPTO record | Term ended | Term ended Oct 22, 2018 | From the USPTO record |
| US 6,157,920 | Executable digital cash for electronic commerce Formerly held Term ended Term ended Aug 14, 2018 · From the USPTO record | Term ended | Term ended Aug 14, 2018 | From the USPTO record |
| US 6,269,163 | Enhanced block ciphers with data-dependent rotations Formerly held Term ended Term ended Jun 15, 2018 · From the USPTO record | Term ended | Term ended Jun 15, 2018 | From the USPTO record |
| US 6,076,163 | Secure user identification based on constrained polynomials Formerly held Term ended Term ended Oct 20, 2017 · From the USPTO record | Term ended | Term ended Oct 20, 2017 | From the USPTO record |
| US 6,085,320 | Client/server protocol for proving authenticity Formerly held Term ended Term ended Apr 21, 2017 · From the USPTO record | Term ended | Term ended Apr 21, 2017 | From the USPTO record |
| US 5,400,403 | Abuse-resistant object distribution system and method Formerly held Term ended Term ended no later than Mar 21, 2015 · Low confidence | Term ended | Term ended no later than Mar 21, 2015 | Low confidence |
| US 5,633,929 | Cryptographic key escrow system having reduced vulnerability to harvesting attacks Formerly held Term ended Term ended no later than May 27, 2017 · Low confidence | Term ended | Term ended no later than May 27, 2017 | Low confidence |
| US 5,724,428 | Block encryption algorithm with data-dependent rotations Formerly held Term ended Term ended no later than Mar 3, 2018 · Low confidence | Term ended | Term ended no later than Mar 3, 2018 | Low confidence |
| US 5,835,600 | Block encryption algorithm with data-dependent rotations Term ended Term ended no later than Nov 10, 2018 · Low confidence | Term ended | Term ended no later than Nov 10, 2018 | Low confidence |
| US 5,854,759 | Methods and apparatus for efficient finite field basis conversion Formerly held Term ended Term ended no later than Dec 29, 2018 · Low confidence | Term ended | Term ended no later than Dec 29, 2018 | Low confidence |