Inventor · disambiguated record
Denis J. Dudrey
Also filed as: DUDREY DENIS J
23 granted patents·1 pending application·2,689 citations·filing 1980–2007
98Inventor score
Top patents by PatentIndex Score
24 records- 0199US6171684B1Filter material construction and methodDONALDSON CO INC·Filed 1997·Granted Jan 9, 2001·307 cites·13 claims
- 0299US5672399AFilter material construction and methodDONALDSON CO INC·Filed 1995·Granted Sep 30, 1997·486 cites·20 claims
- 0399US5238474AFiltration arrangementDONALDSON CO INC·Filed 1992·Granted Aug 24, 1993·301 cites·16 claims
- 0499US5082476AFiltration arrangement and methodDONALDSON CO INC·Filed 1990·Granted Jan 21, 1992·357 cites·18 claims
- 0598US6872431B2Filter material construction and methodDONALDSON CO INC·Filed 2003·Granted Mar 29, 2005·106 cites·20 claims
- 0698US6521321B2Filter material construction and methodDONALDSON CO INC·Filed 2001·Granted Feb 18, 2003·118 cites·17 claims
- 0798US5423892AFiltration arrangementDONALDSON CO INC·Filed 1993·Granted Jun 13, 1995·119 cites·5 claims
- 0897US5800587AFiltration arrangement and methodDONALDSON CO INC·Filed 1997·Granted Sep 1, 1998·115 cites·43 claims
- 0997US5364456AFiltration arrangement and methodDONALDSON CO INC·Filed 1993·Granted Nov 15, 1994·140 cites·18 claims
- 1093US5622537AFiltration arrangementDONALDSON CO INC·Filed 1995·Granted Apr 22, 1997·70 cites·19 claims
- 1192US6165572AFilter material construction and methodDONALDSON CO INC·Filed 1997·Granted Dec 26, 2000·104 cites·20 claims
- 1292US5972063AAir filtration arrangement and methodDONALDSON CO INC·Filed 1998·Granted Oct 26, 1999·83 cites·11 claims
- 1392US5669949AAir filtration arrangementDONALDSON CO INC·Filed 1995·Granted Sep 23, 1997·85 cites·26 claims
- 1488US5797973AAir filtration arrangement and methodDONALDSON CO INC·Filed 1997·Granted Aug 25, 1998·64 cites·22 claims
- 1588US5792227AFiltration arrangementDONALDSON CO INC·Filed 1997·Granted Aug 11, 1998·47 cites·21 claims
- 1687US6019809AFiltration arrangementDONALDSON CO INC·Filed 1998·Granted Feb 1, 2000·43 cites·25 claims
- 1781US5762669AFiltration arrangementDONALDSON CO INC·Filed 1996·Granted Jun 9, 1998·33 cites·14 claims
- 1875US4406651AMulti-phase self purging centrifugeDONALDSON CO INC·Filed 1982·Granted Sep 27, 1983·27 cites·9 claims
- 1975US4366069ACoolant recovery systemDONALDSON CO INC·Filed 1981·Granted Dec 28, 1982·36 cites·18 claims
- 2067US5762670AFiltration arrangementDONALDSON CO INC·Filed 1996·Granted Jun 9, 1998·19 cites·37 claims
- 2159US7077799B2Apparatus and method for a high-efficiency self-cleaning centrifuge having concentrate cylindersADVANCED PRODUCTS LAB INC·Filed 2003·Granted Jul 18, 2006·14 cites·22 claims
- 2259US4350282ASelf-purging centrifugeDONALDSON CO INC·Filed 1980·Granted Sep 21, 1982·15 cites·22 claims
- 2351US2005210844A1Filter material construction and methodDONALDSON CO INC·Filed 2005·Application pending·0 cites
- 2442US7901343B2Methods and apparatus for centrifuging dry solidsADVANCED PRODUCTS LAB INC·Filed 2007·Granted Mar 8, 2011·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →