Inventor · disambiguated record
Stephen N. Mcewen
Also filed as: MCEWEN STEPHEN N
27 granted patents·1 pending application·641 citations·filing 1974–2003
97Inventor score
Top patents by PatentIndex Score
28 records- 0193US5655849ACouplings for joining shaftsHENRY FILTERS CORP·Filed 1995·Granted Aug 12, 1997·126 cites·13 claims
- 0282US3980014ABriquetting machineHENRY MANUFACTURING COMPANY·Filed 1974·Granted Sep 14, 1976·48 cites·18 claims
- 0379US3935105ATubular filter in settlerHENRY MFG CO·Filed 1974·Granted Jan 27, 1976·31 cites·29 claims
- 0477US5820756ADisc filter assembly for machine tool coolantFiled 1997·Granted Oct 13, 1998·49 cites·10 claims
- 0577US4420868ATrough manufacturing processHENRY FILTERS INC·Filed 1981·Granted Dec 20, 1983·30 cites·18 claims
- 0676US4421645ACompact universal drum filter settlerHENRY FILTERS INC·Filed 1982·Granted Dec 20, 1983·35 cites·22 claims
- 0774US5300220ATrough system for machine tool coolant collection flumesHENRY FILTERS INC·Filed 1992·Granted Apr 5, 1994·27 cites·5 claims
- 0871US6050788APump with improved seal for filtration systemsHENRY FILTERS INC·Filed 1997·Granted Apr 18, 2000·18 cites·6 claims
- 0969US6017446AFloor mounted filtration systemHENRY FILTERS INC·Filed 1998·Granted Jan 25, 2000·22 cites·35 claims
- 1068US5030346APump for filtration systemHENRY FILTERS INC·Filed 1990·Granted Jul 9, 1991·31 cites·19 claims
- 1166US5662812ATrough system for machine tool coolant collection flumesHENRY FILTERS INC·Filed 1996·Granted Sep 2, 1997·16 cites·4 claims
- 1264US5389256AFilter apparatus for machine tool coolantHENRY FILTERS INC·Filed 1992·Granted Feb 14, 1995·27 cites·5 claims
- 1360US4467633ATrough, manufacturing process, and apparatusHENRY FILTERS INC·Filed 1983·Granted Aug 28, 1984·16 cites·12 claims
- 1458US5961847AFilter apparatus with dual drive loopsHENRY FILTERS INC·Filed 1997·Granted Oct 5, 1999·27 cites·20 claims
- 1554US5154584APump for filtration systemsHENRY FILTERS INC·Filed 1990·Granted Oct 13, 1992·18 cites·36 claims
- 1654US4428838ATubular filter structureHENRY FILTERS INC·Filed 1982·Granted Jan 31, 1984·18 cites·12 claims
- 1753US5637213AImmersible filter drum unit and method for assembling thereofHENRY FILTERS INC·Filed 1994·Granted Jun 10, 1997·16 cites·17 claims
- 1845US6629814B2Low profile pumpHENRY FILTERS INC·Filed 2001·Granted Oct 7, 2003·2 cites·7 claims
- 1945US5158691AFilter apparatus and method for filtering contaminants from machine tool coolantHENRY FILTERS INC·Filed 1990·Granted Oct 27, 1992·13 cites·8 claims
- 2045US5135364APump mounting apparatus for filtration systemHENRY FILTERS INC·Filed 1990·Granted Aug 4, 1992·12 cites·8 claims
- 2144US5985145AShaft mounted gear boxHENRY FILTERS INC·Filed 1998·Granted Nov 16, 1999·9 cites·2 claims
- 2244US4975184AHorizontal removable pump for filtration systemsHENRY FILTERS INC·Filed 1988·Granted Dec 4, 1990·10 cites·30 claims
- 2343US4055497AHold-down mechanism for scraper conveyor and settling tankHENRY MFG CO·Filed 1976·Granted Oct 25, 1977·10 cites·18 claims
- 2440US5503520APump for filtration systemsHENRY FILTERS INC·Filed 1993·Granted Apr 2, 1996·5 cites·8 claims
- 2540US4900438APump mounting for a filtration systemHENRY FILTERS INC·Filed 1988·Granted Feb 13, 1990·8 cites·19 claims
- 2640US4507061ACheck valve and pump receptor assemblyHENRY FILTERS INC·Filed 1982·Granted Mar 26, 1985·9 cites·10 claims
- 2739US2003194314A1Low profile pumpFiled 2003·Application pending·0 cites
- 2838US5961828ACompact drive system utilizing gear box with worm and cycloidal gearsHENRY FILTERS INC·Filed 1997·Granted Oct 5, 1999·8 cites·7 claims
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