Inventor · disambiguated record
Brent A. Gulsvig
Also filed as: GULSVIG BRENT · GULSVIG BRENT A
25 granted patents·7 pending applications·366 citations·filing 1993–2024
96Inventor score
Top patents by PatentIndex Score
32 records- 0198US7160451B2Liquid filter assembly for use with treatment agent and methodsDONALDSON CO INC·Filed 2005·Granted Jan 9, 2007·82 cites·12 claims
- 0296US11400394B2Spin-on filter with external threads and methodsDONALDSON CO INC·Filed 2021·Granted Aug 2, 2022·2 cites·19 claims
- 0393US11344829B2Spin-on filter with external threads and methodsDONALDSON CO INC·Filed 2020·Granted May 31, 2022·2 cites·10 claims
- 0493US7628280B2Liquid filter arrangement; components; and methodsDONALDSON CO INC·Filed 2006·Granted Dec 8, 2009·23 cites·7 claims
- 0593US2025135383A1Spin-on filter with external threads and methodsDONALDSON CO INC·Filed 2024·Application pending·0 cites
- 0692USD470216SFilter elementDONALDSON CO INC·Filed 2002·Granted Feb 11, 2003·52 cites·1 claims
- 0790US9555347B2Spin-on filter with external threads and methodsTUCKER BRIAN·Filed 2009·Granted Jan 31, 2017·13 cites·16 claims
- 0890US7238285B2Liquid filter assembly for use with treatment agent; and, methodsDONALDSON CO INC·Filed 2005·Granted Jul 3, 2007·14 cites·19 claims
- 0988US10493386B2Liquid filter arrangement; components; and, methodsDONALDSON CO INC·Filed 2017·Granted Dec 3, 2019·2 cites·18 claims
- 1088US9545587B2Spin-on filter with external threads and methodsTUCKER BRIAN·Filed 2009·Granted Jan 17, 2017·11 cites·13 claims
- 1184US12186689B2Spin-on filter with external threads and methodsDONALDSON CO INC·Filed 2022·Granted Jan 7, 2025·0 cites·19 claims
- 1284US8821724B2Liquid filter arrangement; components; and, methodsMANDT BRIAN·Filed 2012·Granted Sep 2, 2014·4 cites·19 claims
- 1384US8535530B2Liquid filter arrangement; components; and, methodsMANDT BRIAN·Filed 2008·Granted Sep 17, 2013·9 cites·9 claims
- 1483US12168191B2Spin-on filter with external threads and methodsDONALDSON CO INC·Filed 2022·Granted Dec 17, 2024·0 cites·14 claims
- 1583US10046256B2Spin-on filter with external threads and methodsDONALDSON CO INC·Filed 2016·Granted Aug 14, 2018·1 cites·11 claims
- 1683US6083381AFuel filter with sediment drain valve and level indicatorDONALDSON CO INC·Filed 1997·Granted Jul 4, 2000·41 cites·16 claims
- 1782US5395518AHigh pressure filter with integral relief valveDONALDSON CO INC·Filed 1993·Granted Mar 7, 1995·53 cites·8 claims
- 1880US11944925B2Liquid filter arrangement; components; and, methodsDONALDSON CO INC·Filed 2021·Granted Apr 2, 2024·0 cites·4 claims
- 1975US2020324230A1Spin-on filter with external threads and methodsDONALDSON CO INC·Filed 2020·Application pending·0 cites
- 2074US11207621B2Liquid filter arrangement; components; and, methodsDONALDSON CO INC·Filed 2019·Granted Dec 28, 2021·0 cites·13 claims
- 2174US10729997B2Spin-on filter with external threads and methodsDONALDSON CO INC·Filed 2019·Granted Aug 4, 2020·0 cites·20 claims
- 2274US9751033B2Liquid filter arrangement; components; and, methodsDONALDSON CO INC·Filed 2014·Granted Sep 5, 2017·1 cites·15 claims
- 2373US10695700B2Spin-on filter with external threads and methodsDONALDSON CO INC·Filed 2018·Granted Jun 30, 2020·0 cites·17 claims
- 2468US10220339B2Spin-on filter with external threads and methodsDONALDSON CO INC·Filed 2016·Granted Mar 5, 2019·0 cites·12 claims
- 2564US7314555B2Filter cartridge for a filter assemblyDONALDSON CO INC·Filed 2002·Granted Jan 1, 2008·11 cites·15 claims
- 2662US6012485AFluid filter arrangement including valve arrangement, fluid level indicator, and methods thereofDONALDSON CO INC·Filed 1998·Granted Jan 11, 2000·19 cites·10 claims
- 2755US6126823ASpin-on coolant filterDONALDSON CO INC·Filed 1998·Granted Oct 3, 2000·26 cites·9 claims
- 2843US2009200221A1Liquid filter arrangement and methodDONALDSON CO INC·Filed 2005·Application pending·0 cites
- 2943US2006016769A1Filter assembly and methodsHACKER JOHN R·Filed 2005·Application pending·0 cites
- 3042US2007235378A1Top Load Liquid Filter Assembly for Use with Treatment Agent; and, MethodsDONALDSON CORP COMPANY INC·Filed 2005·Application pending·0 cites
- 3142US2006207948A1Filter assemblies and methodsHACKER JOHN R·Filed 2004·Application pending·0 cites
- 3241US2005103701A1Liquid filter arrangement with secondary filter and bypass flowDONALDSON CO INC·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →