Inventor
Randy J. Logan
Inventor
St. Paul, MN, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation43%
G11BInformation storage based on relative movement between record carrier and transducer36%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry21%
PatentTitleYear
7,166,142'Filter constructions containing breather and recirculation filter elements'20077,095,584'Integrated chemical breather filter with high and low pressure surfaces'20066,726,745'Filter assembly with shaped adsorbent article; and devices and methods of use'20046,491,741'Filter assembly with shaped adsorbent article; and devices and methods of use'20026,214,095'Adsorbent pouch for removal of gaseous contaminants'20016,168,651'Filter assembly with shaped adsorbent article; and devices and methods of use'20015,997,614'Filter with diffusion channel and methods of making and using the filter'1999Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2007Patents assigned to DONALDSON CO INC (7)· patent assignee history
1999–2007Based in St. Paul, MN, US· patent location history
2006Based in Hong Kong, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DONALDSON CO INC | 7 | 1999–2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| St. Paul, Minnesota, US | 6 | 1999–2007 |
| Hong Kong, CN | 1 | 2006 |