Inventor
Brent A. Gulsvig
Inventor
Faribault, MN, US
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation51%
Y10TTechnical subjects covered by former us classification23%
F01MLubricating of machines or engines in general6%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof6%
F16KValves6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
LOC233%
PatentTitleYear
10,729,997Spin-on filter with external threads and methods202010,695,700Spin-on filter with external threads and methods202010,493,386Liquid filter arrangement; components; and, methods201910,220,339Spin-on filter with external threads and methods201910,046,256Spin-on filter with external threads and methods20189,751,033'Liquid filter arrangement; components; and, methods'20179,555,347'Spin-on filter with external threads and methods'20179,545,587'Spin-on filter with external threads and methods'20178,821,724'Liquid filter arrangement; components; and, methods'20148,535,530'Liquid filter arrangement; components; and, methods'20137,628,280'Liquid filter arrangement; components; and methods'20097,314,555'Filter cartridge for a filter assembly'20087,238,285'Liquid filter assembly for use with treatment agent; and, methods'20077,160,451'Liquid filter assembly for use with treatment agent and methods'2007D0470216'Filter element'20036,126,823'Spin-on coolant filter'20006,083,381'Fuel filter with sediment drain valve and level indicator'20006,012,485'Fluid filter arrangement including valve arrangement, fluid level indicator, and methods thereof'20005,395,518'High pressure filter with integral relief valve'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–2020Patents assigned to DONALDSON CO INC (19)· patent assignee history
1995Based in Lakeville, MN, US· patent location history
2000–2020Based in Faribault, MN, US· patent location history
2007Based in Fairbault, MN, US· patent location history
2013–2017Patents assigned to GULSVIG BRENT A (3)· patent assignee history
2013–2017Patents assigned to HACKER JOHN R (3)· patent assignee history
2017Patents assigned to EMERY MARK S (2)· patent assignee history
2017Patents assigned to GIFT GARY H (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DONALDSON CO INC | 19 | 1995–2020 |
| GULSVIG BRENT Aself | 3 | 2013–2017 |
| HACKER JOHN R | 3 | 2013–2017 |
| EMERY MARK S | 2 | 2017 |
| GIFT GARY H | 2 | 2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Faribault, Minnesota, US | 16 | 2000–2020 |
| Fairbault, Minnesota, US | 2 | 2007 |
| Lakeville, Minnesota, US | 1 | 1995 |