Inventor · disambiguated record
Daniel T. Risch
Also filed as: RISCH DANIEL · RISCH DANIEL T
37 granted patents·5,247 citations·filing 1982–2021
99Inventor score
Top patents by PatentIndex Score
37 records- 0199US6048386AIntegrated resonator and filter apparatusDONALDSON CO INC·Filed 1998·Granted Apr 11, 2000·151 cites·6 claims
- 0299US5902364AConical filterDONALDSON CO INC·Filed 1996·Granted May 11, 1999·506 cites·27 claims
- 0399USD399944SConical filterDONALDSON CO INC·Filed 1996·Granted Oct 20, 1998·220 cites·1 claims
- 0499US5820646AInline filter apparatusDONALDSON CO INC·Filed 1996·Granted Oct 13, 1998·798 cites·28 claims
- 0599USD398046SCombined filter element and frame thereforDONALDSON CO INC·Filed 1996·Granted Sep 8, 1998·312 cites·1 claims
- 0699US5792247AIntegrated resonator and filter apparatusDONALDSON CO INC·Filed 1996·Granted Aug 11, 1998·443 cites·4 claims
- 0799USD396098SConical filterDONALDSON CO INC·Filed 1997·Granted Jul 14, 1998·334 cites·1 claims
- 0899US5772883ASlanted inline filterDONALDSON CO INC·Filed 1996·Granted Jun 30, 1998·465 cites·30 claims
- 0998USD428128SConical filterDONALDSON CO INC·Filed 1998·Granted Jul 11, 2000·207 cites·1 claims
- 1098USD425189SCombined filter element and frame thereforGILLINGHAM GARY R·Filed 1998·Granted May 16, 2000·297 cites·1 claims
- 1198US5895574ARolled liquid filter using fluted mediaDONALDSON CO INC·Filed 1996·Granted Apr 20, 1999·449 cites·8 claims
- 1297US8961722B2Process and materials for coiling z-filter media; and/or closing flutes of filter media; and, productsDONALDSON CO INC·Filed 2013·Granted Feb 24, 2015·25 cites·13 claims
- 1397US7329326B2Method of making a fluted filter media for air filterDONALDSON CO INC·Filed 2003·Granted Feb 12, 2008·138 cites·9 claims
- 1497US5575826AAir cleanerDONALDSON CO INC·Filed 1995·Granted Nov 19, 1996·153 cites·19 claims
- 1596US10953360B2Filtration media, pleated media pack, filter cartridge, and methods for manufacturingDONALDSON CO INC·Filed 2019·Granted Mar 23, 2021·9 cites·20 claims
- 1696US8460442B2Fluted filter mediaWAGNER WAYNE M·Filed 2012·Granted Jun 11, 2013·25 cites·10 claims
- 1796US8226786B2Process and materials for coiling z-filter media, and/or closing flutes of filter media; and, productsSCHRAGE KEVIN J·Filed 2004·Granted Jul 24, 2012·95 cites·19 claims
- 1896US7997425B2Fluted filter medium and process for its manufactureDONALDSON CO INC·Filed 2003·Granted Aug 16, 2011·88 cites·10 claims
- 1995US4443235ASelf-cleaning cabinet dust collectorDONALDSON CO INC·Filed 1982·Granted Apr 17, 1984·98 cites·22 claims
- 2094US5814219APleated filter having a planar sheet of randomly arranged filaments to maintain pleat spacingDONALDSON CO INC·Filed 1997·Granted Sep 29, 1998·127 cites·23 claims
- 2194US5401285AAir cleaner having scavenger arrangement for precleaner and filter thereofDONALDSON CO INC·Filed 1993·Granted Mar 28, 1995·83 cites·8 claims
- 2293US8512499B2Fluted filter medium and process for its manufactureGOLDEN PATRICK·Filed 2011·Granted Aug 20, 2013·23 cites·11 claims
- 2390US10343103B2Filtration media, pleated media pack, filter cartridge, and methods for manufacturingDONALDSON CO INC·Filed 2015·Granted Jul 9, 2019·4 cites·19 claims
- 2490US8268053B2Fluted filter mediaWAGNER WAYNE M·Filed 2008·Granted Sep 18, 2012·18 cites·5 claims
- 2588US5683479AAir cleaner having scavenger arrangementDONALDSON CO INC·Filed 1996·Granted Nov 4, 1997·63 cites·19 claims
- 2686US8496774B2Process and materials for coiling z-filter media; and/or closing flutes of filter media; and, productsSCHRAGE KEVIN·Filed 2012·Granted Jul 30, 2013·5 cites·21 claims
- 2775US9770686B2Process and materials using z-filter media, and/or, closing flutes of filter media; and, productsDONALDSON CO INC·Filed 2015·Granted Sep 26, 2017·1 cites·10 claims
- 2874US11691102B2Filtration media, pleated media pack, filter cartridge, and methods for manufacturingDONALDSON CO INC·Filed 2021·Granted Jul 4, 2023·0 cites·18 claims
- 2969US6009898AValve assembly for preventing liquid ingestion and methodsDONALDSON CO INC·Filed 1998·Granted Jan 4, 2000·21 cites·20 claims
- 3067US5931988ACabinet filter assembly and methodsDONALDSON CO INC·Filed 1997·Granted Aug 3, 1999·32 cites·26 claims
- 3155US6148519AApparatus for installing a packing material in a muffler assembly; and methods thereofDONALDSON CO INC·Filed 1998·Granted Nov 21, 2000·20 cites·16 claims
- 3247US9346140B2Anvil for ultrasonic machiningMS SPAICHINGEN GMBH·Filed 2012·Granted May 24, 2016·0 cites·15 claims
- 3342US6209559B1Valve assembly for preventing liquid ingestion and methodsDONALDSON CO INC·Filed 1999·Granted Apr 3, 2001·6 cites·9 claims
- 3442US5400590AFilter cartridge arrangementDONALDSON CO INC·Filed 1993·Granted Mar 28, 1995·14 cites·11 claims
- 3541US6213146B1Valve assembly for preventing liquid ingestion and methodsDONALDSON CO INC·Filed 1999·Granted Apr 10, 2001·6 cites·20 claims
- 3635US4736518AMethod and apparatus for construction of crimp seal pleated filter assemblyDONALDSON CO INC·Filed 1986·Granted Apr 12, 1988·6 cites·16 claims
- 3732US4793051AMethod for construction of crimp seal pleated filter assemblyDONALDSON CO INC·Filed 1987·Granted Dec 27, 1988·5 cites·6 claims
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