Inventor
Erik E. Engwall
Inventor
Worcester, MA, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C01Bprimary
C01BNon-metallic elements30%
B01DSeparation20%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy15%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution15%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
8,795,912'Systems and processes for operating fuel cell systems'20148,632,922'Systems and processes for operating fuel cell systems'20148,563,186'Systems and processes of operating fuel cell systems'20137,390,536'Method for fabricating composite gas separation modules'20087,255,726'Composite gas separation modules having high Tamman temperature intermediate layers'20077,175,694'Composite gas separation modules having intermediate porous metal layers'20077,172,644'Method for curing defects in the fabrication of a composite gas separation module'2007Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2007–2008Patents assigned to WORCESTER POLYTECH INST (4)· patent assignee history
2007–2008Based in Worcester, MA, US· patent location history
2013–2014Patents assigned to CUI JINGYU (3)· patent assignee history
2013–2014Patents assigned to ENGWALL ERIK EDWIN (3)· patent assignee history
2013–2014Patents assigned to JOHNSTON JOHN WILLIAM (3)· patent assignee history
2013–2014Patents assigned to JOSHI MAHENDRA LADHARAM (3)· patent assignee history
2013–2014Based in Houston, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WORCESTER POLYTECH INST | 4 | 2007–2008 |
| CUI JINGYU | 3 | 2013–2014 |
| ENGWALL ERIK EDWINself | 3 | 2013–2014 |
| JOHNSTON JOHN WILLIAM | 3 | 2013–2014 |
| JOSHI MAHENDRA LADHARAM | 3 | 2013–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Worcester, Massachusetts, US | 4 | 2007–2008 |
| Houston, Texas, US | 3 | 2013–2014 |