Inventor
FIERRO CRISTIAN
US16 patents
⚠️ This page may combine multiple inventors who share the name “FIERRO CRISTIAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OVONIC BATTERY CO
15 patentsUS6228535B1May 8, 2001
Nickel hydroxide positive electrode material exhibiting improved conductivity and engineered activation energy
OVONIC BATTERY CO56 citations96
US5523182AJun 4, 1996
Enhanced nickel hydroxide positive electrode materials for alkaline rechargeable electrochemical cells
OVONIC BATTERY CO107 citations96
US6416903B1Jul 9, 2002
Nickel hydroxide electrode material and method for making the same
OVONIC BATTERY CO39 citations92
US5861225AJan 19, 1999
Nickel battery electrode having multiple composition nickel hydroxide active materials
OVONIC BATTERY CO27 citations91
US7261970B2Aug 28, 2007
Nickel metal hydride battery design
OVONIC BATTERY CO11 citations84
US6432580B1Aug 13, 2002
Method of making a nickel hydroxide material
OVONIC BATTERY CO16 citations83
US7364717B2Apr 29, 2008
Process for converting nickel to nickel sulfate
OVONIC BATTERY CO15 citations81
US6593024B2Jul 15, 2003
Hydrogen storage battery and methods for making
OVONIC BATTERY CO7 citations74
US6447953B1Sep 10, 2002
Nickel hydroxide positive electrode material exhibiting improved conductivity and engineered activation energy
OVONIC BATTERY CO12 citations73
US6444363B1Sep 3, 2002
Method of making a nickel hydroxide material
OVONIC BATTERY CO7 citations71
US7396379B2Jul 8, 2008
Hydrogen storage battery; positive nickel electrode; positive electrode active material and methods for making
OVONIC BATTERY CO4 citations63
US7294434B2Nov 13, 2007
Nickel Hydroxide electrode material with improved microstructure and method for making the same
OVONIC BATTERY CO1 citations62
US7799296B2Sep 21, 2010
Method of producing a nickel salt solution
OVONIC BATTERY CO6 citations61
US7097933B2Aug 29, 2006
Catalyst for fuel cell oxygen electrodes
OVONIC BATTERY CO6 citations61
US9425456B2Aug 23, 2016
Rechargeable battery cell with improved high temperature performance
OVONIC BATTERY CO0 citations43