BJ

Barbara Jeffries-Nakamura

Caltech: 20 patents #75 of 4,321Top 2%
📍 San Marino, CA: #25 of 232 inventorsTop 15%
🗺 California: #28,827 of 386,348 inventorsTop 8%
Overall (All Time): #225,411 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
7488548 Direct methanol feed fuel cell and system Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Andrew Kindler +1 more 2009-02-10
7470478 Direct methanol feed fuel cell and system Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Andrew Kindler +1 more 2008-12-30
7425384 Direct methanol feed fuel cell and system Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Andrew Kindler +1 more 2008-09-16
7056428 Hydrogen generation by electrolysis of aqueous organic solutions Sekharipuram R. Narayanan, William Chun, Thomas I. Valdez 2006-06-06
6703150 Direct methanol feed fuel cell and system Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Andrew Kindler +1 more 2004-03-09
6589684 Direct methanol feed fuel cell and system Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Andrew Kindler +1 more 2003-07-08
6533919 Hydrogen generation by electrolysis of aqueous organic solutions Sekharipuram R. Narayanan, William Chun, Thomas I. Valdez 2003-03-18
6432284 Hydrogen generation by electrolysis of aqueous organic solutions Sekharipuram R. Narayanan, William Chun, Thomas I. Valdez 2002-08-13
6420059 Direct methanol feed fuel cell and system Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Andrew Kindler +1 more 2002-07-16
6368492 Hydrogen generation by electrolysis of aqueous organic solutions Sekharipuram R. Narayanan, William Chun, Thomas I. Valdez 2002-04-09
6303244 Direct methanol feed fuel cell and system Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Andrew Kindler +1 more 2001-10-16
6299744 Hydrogen generation by electrolysis of aqueous organic solutions Sekharipuram R. Narayanan, William Chun, Thomas I. Valdez 2001-10-09
6277447 Direct deposit of catalyst on the membrane of direct feed fuel cells William Chun, Sekharipuram R. Narayanan, Thomas I. Valdez, Juergen Linke 2001-08-21
6265093 Direct methanol feed fuel cell and system Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Andrew Kindler +1 more 2001-07-24
6254748 Direct methanol feed fuel cell and system Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Andrew Kindler +1 more 2001-07-03
6221523 Direct deposit of catalyst on the membrane of direct feed fuel cells William Chun, Sekharipuram R. Narayanan, Thomas I. Valdez, Juergen Linke 2001-04-24
6171721 Sputter-deposited fuel cell membranes and electrodes Sekharipuram R. Narayanan, William Chun, Ron P. Ruiz, Thomas I. Valdez 2001-01-09
6146781 Direct methanol feed fuel cell and system Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Andrew Kindler +1 more 2000-11-14
5773162 Direct methanol feed fuel cell and system Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Andrew Kindler +1 more 1998-06-30
4820596 Alkali metal-refractory metal biphase electrode for AMTEC Roger M. Williams, Clyde P. Bankston, Terry L. Cole, Satish K. Khanna, Bob L. Wheeler 1989-04-11