Evercel, Inc.
Records under this name other than patents Evercel, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,531,237 | Manifold and sealing assembly for fuel cell stack Term ended Term ended Mar 1, 2021 · From the USPTO record | Term ended | Term ended Mar 1, 2021 | From the USPTO record |
| US 4,415,636 | Secondary batteries having a zinc negative electrode Term ended Term ended no later than Nov 15, 2003 · Low confidence | Term ended | Term ended no later than Nov 15, 2003 | Low confidence |
| US 4,546,058 | Nickel electrode for alkaline batteries Term ended Term ended no later than Oct 8, 2005 · Low confidence | Term ended | Term ended no later than Oct 8, 2005 | Low confidence |
| US 4,661,759 | Nickel-oxygen monitor cell system Term ended Term ended no later than Apr 28, 2007 · Low confidence | Term ended | Term ended no later than Apr 28, 2007 | Low confidence |
| US 4,810,598 | Gas recombination assembly for electrochemical cells Term ended Term ended no later than Mar 7, 2009 · Low confidence | Term ended | Term ended no later than Mar 7, 2009 | Low confidence |
| US 4,976,904 | Method and apparatus for continuous formation of fibrillated polymer binder electrode component Term ended Term ended no later than Dec 11, 2010 · Low confidence | Term ended | Term ended no later than Dec 11, 2010 | Low confidence |
| US 5,023,155 | Nickel electrode for alkaline batteries Term ended Term ended no later than Jun 11, 2011 · Low confidence | Term ended | Term ended no later than Jun 11, 2011 | Low confidence |
| US 5,264,305 | Zinc secondary battery having bipolar plate construction with horizontally disposed battery components Term ended Term ended no later than Nov 23, 2013 · Low confidence | Term ended | Term ended no later than Nov 23, 2013 | Low confidence |
| US 5,460,899 | Sealed zinc secondary battery and zinc electrode therefor Term ended Term ended no later than Oct 24, 2015 · Low confidence | Term ended | Term ended no later than Oct 24, 2015 | Low confidence |
| US 5,556,720 | Sealed zinc secondary battery and zinc electrode therefor Term ended Term ended no later than Sep 17, 2016 · Low confidence | Term ended | Term ended no later than Sep 17, 2016 | Low confidence |