Comdisco Resources, Inc.
Records under this name other than patents Comdisco Resources, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Back to Comdisco Resources, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,616,702 | Tool and combined tool support and casing section for use in transmitting data up a well Term ended Term ended no later than Oct 14, 2006 · Low confidence | Term ended | Term ended no later than Oct 14, 2006 | Low confidence |
| US 4,724,434 | Method and apparatus using casing for combined transmission of data up a well and fluid flow in a geological formation in the well Term ended Term ended no later than Feb 9, 2008 · Low confidence | Term ended | Term ended no later than Feb 9, 2008 | Low confidence |
| US 4,763,520 | Method and means for obtaining data representing a parameter of fluid flowing through a down hole side of an oil or gas well bore Term ended Term ended no later than Aug 16, 2008 · Low confidence | Term ended | Term ended no later than Aug 16, 2008 | Low confidence |
| US 4,770,034 | Method and apparatus for data transmission in a well bore containing a conductive fluid Term ended Term ended no later than Sep 13, 2008 · Low confidence | Term ended | Term ended no later than Sep 13, 2008 | Low confidence |
| US 4,821,035 | Method and apparatus using a well casing for transmitting data up a well Term ended Term ended no later than Apr 11, 2009 · Low confidence | Term ended | Term ended no later than Apr 11, 2009 | Low confidence |
| US 4,828,051 | Method and apparatus for data transmission in a well using a flexible line with stiffener Term ended Term ended no later than May 9, 2009 · Low confidence | Term ended | Term ended no later than May 9, 2009 | Low confidence |
| US 4,845,494 | Method and apparatus using casing and tubing for transmitting data up a well Term ended Term ended no later than Jul 4, 2009 · Low confidence | Term ended | Term ended no later than Jul 4, 2009 | Low confidence |
| US 4,848,480 | Method and apparatus for wire line protection in a well Term ended Term ended no later than Jul 18, 2009 · Low confidence | Term ended | Term ended no later than Jul 18, 2009 | Low confidence |
| US 4,889,186 | Overlapping horizontal fracture formation and flooding process Term ended Term ended no later than Dec 26, 2009 · Low confidence | Term ended | Term ended no later than Dec 26, 2009 | Low confidence |
| US 5,025,859 | Overlapping horizontal fracture formation and flooding process Term ended Term ended no later than Jun 25, 2011 · Low confidence | Term ended | Term ended no later than Jun 25, 2011 | Low confidence |