Inventor
Christopher J. Fischer
Inventor
Minneapolis, MN, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation24%
G11BInformation storage based on relative movement between record carrier and transducer24%
B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids18%
Y10TTechnical subjects covered by former us classification12%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy6%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution6%
Y02PClimate change mitigation technologies in the production or processing of goods6%
PatentTitleYear
10,930,899Electrochemical cell and apparatus containing the cell202110,482,928Recirculation filter for an electronic enclosure201910,010,822Recirculation filter for an electronic enclosure20189,153,291'Recirculation filter for an electronic enclosure'20158,885,291'Recirculation filter for an electronic enclosure'2014Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2014–2019Patents assigned to DONALDSON CO INC (4)· patent assignee history
2014–2019Based in Minneapolis, MN, US· patent location history
2021Patents assigned to VARTA MICROBATTERY GMBH (1)· patent assignee history
2021Based in Ellwangen, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DONALDSON CO INC | 4 | 2014–2019 |
| VARTA MICROBATTERY GMBH | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Minneapolis, Minnesota, US | 4 | 2014–2019 |
| Ellwangen, DE | 1 | 2021 |