Assignee
SAFETY KLEEN CORP
US·30 granted patents·712 citations·filing 1975–1997
Top patents by PatentIndex Score
30 records- 0190US4462415AParts cleaner adapted for simplified serviceSAFETY KLEEN CORP·Filed 1982·Granted Jul 31, 1984·54 cites·36 claims
- 0285US5154308ADetachable cover and drum liner for storage and transport of controlled materialsSAFETY KLEEN CORP·Filed 1991·Granted Oct 13, 1992·71 cites·14 claims
- 0383US5090559AReusable garment bags for drycleaningSAFETY KLEEN CORP·Filed 1990·Granted Feb 25, 1992·73 cites·6 claims
- 0483US3960728ADisposable filter apparatusSAFETY KLEEN CORP·Filed 1975·Granted Jun 1, 1976·43 cites·5 claims
- 0581US5138735ABuffing pad and attachment system thereforSAFETY KLEEN CORP·Filed 1991·Granted Aug 18, 1992·67 cites·9 claims
- 0677US4261378AAccessory for parts washerSAFETY KLEEN CORP·Filed 1979·Granted Apr 14, 1981·30 cites·26 claims
- 0773US4637413ADegreasing apparatusSAFETY KLEEN CORP·Filed 1984·Granted Jan 20, 1987·30 cites·6 claims
- 0870US5318056ASolvent recirculating type spray gun cleanerSAFETY KLEEN CORP·Filed 1993·Granted Jun 7, 1994·28 cites·9 claims
- 0969US5478465AComposite liquid filterSAFETY KLEEN CORP·Filed 1994·Granted Dec 26, 1995·29 cites·20 claims
- 1069US5435458AChemical spill containment apparatusSAFETY KLEEN CORP·Filed 1992·Granted Jul 25, 1995·21 cites·7 claims
- 1162US5213119ASolvent recirculating type spray gun cleanerSAFETY KLEEN CORP·Filed 1986·Granted May 25, 1993·19 cites·9 claims
- 1261US5350079ASafety cover assembly for open containerSAFETY KLEEN CORP·Filed 1993·Granted Sep 27, 1994·30 cites·11 claims
- 1361US5334291AOn-site, controlled waste concentrator and solvent regenerator apparatusSAFETY KLEEN CORP·Filed 1993·Granted Aug 2, 1994·29 cites·11 claims
- 1461US4823820ASolvent vapor collection and evacuation systemSAFETY KLEEN CORP·Filed 1987·Granted Apr 25, 1989·19 cites·17 claims
- 1555US5698774AApparatus and method for determining concentrations of oil or other non-volatile contaminants in cleaning solventsSAFETY KLEEN CORP·Filed 1996·Granted Dec 16, 1997·23 cites·29 claims
- 1653US5598861AParts washer with solvent flow controlSAFETY KLEEN CORP·Filed 1995·Granted Feb 4, 1997·24 cites·16 claims
- 1752US5255492ADetachable cover and drum liner for storage and transport of controlled materialsSAFETY KLEEN CORP·Filed 1992·Granted Oct 26, 1993·22 cites·6 claims
- 1850US4613449ACompositions for cleaning aluminumSAFETY KLEEN CORP·Filed 1984·Granted Sep 23, 1986·14 cites·10 claims
- 1949US5720308AParts washer with solvent flow controlSAFETY KLEEN CORP·Filed 1996·Granted Feb 24, 1998·13 cites·8 claims
- 2047US5582743AComposite liquid filterSAFETY KLEEN CORP·Filed 1995·Granted Dec 10, 1996·9 cites·6 claims
- 2147US4049551ASafety device for open receptacleSAFETY KLEEN CORP·Filed 1975·Granted Sep 20, 1977·15 cites·3 claims
- 2237US4096873AImmersion cleanerSAFETY KLEEN CORP·Filed 1977·Granted Jun 27, 1978·4 cites·11 claims
- 2336US4732537AAir operated pump and motorSAFETY KLEEN CORP·Filed 1987·Granted Mar 22, 1988·8 cites·11 claims
- 2432US5052422AAll weather apparatus for cleaning pipe threadsSAFETY KLEEN CORP·Filed 1990·Granted Oct 1, 1991·15 cites·10 claims
- 2531US5445038AApparatus for sampling fluids in containersSAFETY KLEEN CORP·Filed 1993·Granted Aug 29, 1995·7 cites·10 claims
- 2631US4160603AImmersion cleanerSAFETY KLEEN CORP·Filed 1978·Granted Jul 10, 1979·2 cites·6 claims
- 2729US5710373AVisual comparator with test chart and method for evaluating contamination of washing fluidsSAFETY KLEEN CORP·Filed 1997·Granted Jan 20, 1998·6 cites·12 claims
- 2824US5353951AServiceable storage and transport containerSAFETY KLEEN CORP·Filed 1992·Granted Oct 11, 1994·4 cites·1 claims
- 2923US6004434AMethod of recycling cleaning solventSAFETY KLEEN CORP·Filed 1994·Granted Dec 21, 1999·2 cites·22 claims
- 3018US5776881AEnhanced solvent compositionSAFETY KLEEN CORP·Filed 1996·Granted Jul 7, 1998·1 cites·19 claims
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