Inventor
NARAYANAN SEKHARIPURAM R
US42 patents
⚠️ This page may combine multiple inventors who share the name “NARAYANAN SEKHARIPURAM R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CALIFORNIA INST OF TECHN
37 patentsUS6303244B1Oct 16, 2001
Direct methanol feed fuel cell and system
CALIFORNIA INST OF TECHN98 citations99
US6299744B1Oct 9, 2001
Hydrogen generation by electrolysis of aqueous organic solutions
CALIFORNIA INST OF TECHN103 citations99
US6265093B1Jul 24, 2001
Direct methanol feed fuel cell and system
CALIFORNIA INST OF TECHN115 citations99
US5773162AJun 30, 1998
Direct methanol feed fuel cell and system
CALIFORNIA INST OF TECHN245 citations99
US6432284B1Aug 13, 2002
Hydrogen generation by electrolysis of aqueous organic solutions
CALIFORNIA INST OF TECHN82 citations98
US5599638AFeb 4, 1997
Aqueous liquid feed organic fuel cell using solid polymer electrolyte membrane
CALIFORNIA INST OF TECHN407 citations98
US6420059B1Jul 16, 2002
Direct methanol feed fuel cell and system
CALIFORNIA INST OF TECHN76 citations97
US6533919B1Mar 18, 2003
Hydrogen generation by electrolysis of aqueous organic solutions
CALIFORNIA INST OF TECHN68 citations96
US6485851B1Nov 26, 2002
Power generation in fuel cells using liquid methanol and hydrogen peroxide
CALIFORNIA INST OF TECHN60 citations96
US6368492B1Apr 9, 2002
Hydrogen generation by electrolysis of aqueous organic solutions
CALIFORNIA INST OF TECHN60 citations96
US6306285B1Oct 23, 2001
Techniques for sensing methanol concentration in aqueous environments
CALIFORNIA INST OF TECHN62 citations96
US6254748B1Jul 3, 2001
Direct methanol feed fuel cell and system
CALIFORNIA INST OF TECHN59 citations96
US6248460B1Jun 19, 2001
Organic fuel cell methods and apparatus
CALIFORNIA INST OF TECHN67 citations96
US6146781ANov 14, 2000
Direct methanol feed fuel cell and system
CALIFORNIA INST OF TECHN56 citations96
US6221523B1Apr 24, 2001
Direct deposit of catalyst on the membrane of direct feed fuel cells
CALIFORNIA INST OF TECHN60 citations95
US6171721B1Jan 9, 2001
Sputter-deposited fuel cell membranes and electrodes
CALIFORNIA INST OF TECHN93 citations95
US6468684B1Oct 22, 2002
Proton conducting membrane using a solid acid
CALIFORNIA INST OF TECHN73 citations94
US5795496AAug 18, 1998
Polymer material for electrolytic membranes in fuel cells
CALIFORNIA INST OF TECHN163 citations94
US7056428B2Jun 6, 2006
Hydrogen generation by electrolysis of aqueous organic solutions
CALIFORNIA INST OF TECHN24 citations92
US6821659B2Nov 23, 2004
Organic fuel cell methods and apparatus
CALIFORNIA INST OF TECHN17 citations92
US6740434B2May 25, 2004
Organic fuel cell methods and apparatus
CALIFORNIA INST OF TECHN25 citations92
US6703150B2Mar 9, 2004
Direct methanol feed fuel cell and system
CALIFORNIA INST OF TECHN15 citations92
US6589684B1Jul 8, 2003
Direct methanol feed fuel cell and system
CALIFORNIA INST OF TECHN24 citations92
US6440594B1Aug 27, 2002
Aerosol feed direct methanol fuel cell
CALIFORNIA INST OF TECHN49 citations92
US7125621B2Oct 24, 2006
Proton conducting membrane using a solid acid
CALIFORNIA INST OF TECHN22 citations91
US6680139B2Jan 20, 2004
Reduced size fuel cell for portable applications
CALIFORNIA INST OF TECHN49 citations91
US6277447B1Aug 21, 2001
Direct deposit of catalyst on the membrane of direct feed fuel cells
CALIFORNIA INST OF TECHN31 citations91
US6756145B2Jun 29, 2004
Electrode and interconnect for miniature fuel cells using direct methanol feed
CALIFORNIA INST OF TECHN16 citations82
US7416803B2Aug 26, 2008
Solid acid electrolytes for electrochemical devices
CALIFORNIA INST OF TECHN9 citations80
US7416809B2Aug 26, 2008
Catalyst materials for fuel cells
CALIFORNIA INST OF TECHN6 citations74
US7470478B2Dec 30, 2008
Direct methanol feed fuel cell and system
CALIFORNIA INST OF TECHN2 citations63
US7425384B2Sep 16, 2008
Direct methanol feed fuel cell and system
CALIFORNIA INST OF TECHN2 citations63
US7695849B2Apr 13, 2010
Low Pt content direct methanol fuel cell anode catalyst: nanophase PtRuNiZr
CALIFORNIA INST OF TECHN4 citations62
US7282291B2Oct 16, 2007
Water free proton conducting membranes based on poly-4-vinylpyridinebisulfate for fuel cells
CALIFORNIA INST OF TECHN2 citations60
US7585577B2Sep 8, 2009
Monopolar fuel cell stack coupled together without use of top or bottom cover plates or tie rods
CALIFORNIA INST OF TECHN1 citations52
US7488548B2Feb 10, 2009
Direct methanol feed fuel cell and system
CALIFORNIA INST OF TECHN0 citations52
US7445859B2Nov 4, 2008
Organic fuel cell methods and apparatus
CALIFORNIA INST OF TECHN0 citations52