Ecash Technologies, Inc.
Records under this name other than patents Ecash Technologies, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Back to Ecash Technologies, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,718,314 | Multi-purpose transaction card system Formerly held Term ended Term ended Feb 6, 2014 · From the USPTO record | Term ended | Term ended Feb 6, 2014 | From the USPTO record |
| US 6,434,238 | Multi-purpose transaction card system Formerly held Term ended Term ended Jan 11, 2014 · From the USPTO record | Term ended | Term ended Jan 11, 2014 | From the USPTO record |
| US 4,529,870 | Cryptographic identification, financial transaction, and credential device Formerly held Term ended Term ended no later than Jul 16, 2005 · Low confidence | Term ended | Term ended no later than Jul 16, 2005 | Low confidence |
| US 4,759,063 | Blind signature systems Formerly held Term ended Term ended no later than Jul 19, 2008 · Low confidence | Term ended | Term ended no later than Jul 19, 2008 | Low confidence |
| US 4,759,064 | Blind unanticipated signature systems Formerly held Term ended Term ended no later than Jul 19, 2008 · Low confidence | Term ended | Term ended no later than Jul 19, 2008 | Low confidence |
| US 4,914,698 | One-show blind signature systems Formerly held Term ended Term ended no later than Apr 3, 2010 · Low confidence | Term ended | Term ended no later than Apr 3, 2010 | Low confidence |
| US 4,926,480 | Card-computer moderated systems Formerly held Term ended Term ended no later than May 15, 2010 · Low confidence | Term ended | Term ended no later than May 15, 2010 | Low confidence |
| US 4,947,430 | Undeniable signature systems Formerly held Term ended Term ended no later than Aug 7, 2010 · Low confidence | Term ended | Term ended no later than Aug 7, 2010 | Low confidence |
| US 4,949,380 | Returned-value blind signature systems Formerly held Term ended Term ended no later than Aug 14, 2010 · Low confidence | Term ended | Term ended no later than Aug 14, 2010 | Low confidence |
| US 4,987,593 | One-show blind signature systems Formerly held Term ended Term ended no later than Jan 22, 2011 · Low confidence | Term ended | Term ended no later than Jan 22, 2011 | Low confidence |