Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10609785 | Multi-purpose multi-agent infrared sensor system for commercial and residential luminaires | Mahshid Fardadi | 2020-03-31 |
| 10153528 | Metal hydride-air (MH-AIR) battery for low cost storage applications | Ratnakumar V. Bugga, Thomas I. Valdez | 2018-12-11 |
| 8889300 | Lithium-based high energy density flow batteries | Ratnakumar V. Bugga, William C. West, Marshall C. Smart | 2014-11-18 |
| 8758948 | Iron-air rechargeable battery | Sri R. Narayan, G.K. Surya Prakash | 2014-06-24 |
| 7951349 | Method and system for storing and generating hydrogen | Sri R. Narayanan, Yuhong Huang | 2011-05-31 |
| 7488548 | Direct methanol feed fuel cell and system | Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Barbara Jeffries-Nakamura +1 more | 2009-02-10 |
| 7470478 | Direct methanol feed fuel cell and system | Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Barbara Jeffries-Nakamura +1 more | 2008-12-30 |
| 7425384 | Direct methanol feed fuel cell and system | Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Barbara Jeffries-Nakamura +1 more | 2008-09-16 |
| 6703150 | Direct methanol feed fuel cell and system | Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Barbara Jeffries-Nakamura +1 more | 2004-03-09 |
| 6589684 | Direct methanol feed fuel cell and system | Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Barbara Jeffries-Nakamura +1 more | 2003-07-08 |
| 6444341 | Polymer electrolyte membrane assembly for fuel cells | Shiao-Ping S. Yen, Andre H. Yavrouian, Gerald Halpert | 2002-09-03 |
| 6440594 | Aerosol feed direct methanol fuel cell | Sekharipuram R. Narayanan, Thomas I. Valdez | 2002-08-27 |
| 6420059 | Direct methanol feed fuel cell and system | Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Barbara Jeffries-Nakamura +1 more | 2002-07-16 |
| 6399235 | Polymer electrolyte membrane assembly for fuel cells | Shiao-Ping S. Yen, Andre H. Yavrouian, Gerald Halpert | 2002-06-04 |
| 6303244 | Direct methanol feed fuel cell and system | Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Barbara Jeffries-Nakamura +1 more | 2001-10-16 |
| 6291093 | Fuel cell elements with improved water handling capacity | Albany Lee | 2001-09-18 |
| 6265093 | Direct methanol feed fuel cell and system | Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Barbara Jeffries-Nakamura +1 more | 2001-07-24 |
| 6254748 | Direct methanol feed fuel cell and system | Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Barbara Jeffries-Nakamura +1 more | 2001-07-03 |
| 6228518 | Low cost, lightweight fuel cell elements | — | 2001-05-08 |
| 6150047 | Polymer electrolyte membrane assembly for fuel cells | Shiao-Ping S. Yen, Andre H. Yavrouian, Gerald Halpert | 2000-11-21 |
| 6146781 | Direct methanol feed fuel cell and system | Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Barbara Jeffries-Nakamura +1 more | 2000-11-14 |
| 6136463 | HSPES membrane electrode assembly | Shiao-Ping S. Yen | 2000-10-24 |
| 5992008 | Direct methanol feed fuel cell with reduced catalyst loading | — | 1999-11-30 |
| 5773162 | Direct methanol feed fuel cell and system | Subbarao Surampudi, Harvey A. Frank, Sekharipuram R. Narayanan, William Chun, Barbara Jeffries-Nakamura +1 more | 1998-06-30 |
| 5494831 | Electrochemical immunosensor system and methods | — | 1996-02-27 |