Inventor
Jiujun Zhang
Inventor
Richmond, CA
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Mprimary
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy35%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution35%
G01NInvestigating or analysing materials by determining their chemical or physical properties9%
A61MDevices for introducing media into, or onto, the body4%
C25BElectrolytic or electrophoretic processes for the production of compounds or non-metals4%
F16NLubricating4%
LOC124%
LOC214%
PatentTitleYear
D0919711Infant activity toy with pedal piano2021D0918786Baby walker20218,988,085'Sensor for measuring the concentration of a solvent or solute in a mixed solution system'20156,884,530'Method of improving the performance of a direct feed fuel cell'20056,864,001'Tetramethyl orthocarbonate fuel cells and systems and methods related thereto'20056,777,116'Direct dimethyl ether fuel cells'20046,698,278'Indirect measurement of fuel concentration in a liquid feed fuel cell'20046,527,943'Fuel cell concentration sensor'20036,472,090'Method and apparatus for operating an electrochemical fuel cell with periodic reactant starvation'20026,299,743'Electrolytic generation of nitrogen'20016,187,467'Ionomer impregnation of electrode substrates for improved fuel cell performance'20016,153,323'Electrode treatment method for improving performance in liquid feed fuel cells'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2005Patents assigned to BALLARD POWER SYSTEMS (7)· patent assignee history
2000–2015Based in Richmond, CA· patent location history
2001Patents assigned to A T S ELECTRO LUBE HOLDINGS LT (1)· patent assignee history
2001Based in Delta, CA· patent location history
2015Patents assigned to GU CAIKANG ELTON (1)· patent assignee history
2015Patents assigned to NAT RES COUNCIL CANADA (1)· patent assignee history
2021Patents assigned to ZHANG JIANNONG (2)· patent assignee history
2021Based in Shantou, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BALLARD POWER SYSTEMS | 7 | 2000–2005 |
| ZHANG JIANNONGself | 2 | 2021 |
| A T S ELECTRO LUBE HOLDINGS LT | 1 | 2001 |
| GU CAIKANG ELTON | 1 | 2015 |
| NAT RES COUNCIL CANADA | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Richmond, CA | 9 | 2000–2015 |
| Shantou, CN | 2 | 2021 |
| Delta, CA | 1 | 2001 |