Inventor · disambiguated record
Michael R. Friswell
Also filed as: FRISWELL MICHAEL · FRISWELL MICHAEL R
16 granted patents·1 pending application·196 citations·filing 1990–2020
93Inventor score
Files withMORTON INT INC9SUNBELT CORP3UNITED COLOR MFG INC2FRISWELL MICHAEL R1MORTON INTERNATIOANL INC1
Top patents by PatentIndex Score
17 records- 0188US5156653ASilent markers for petroleum, method of tagging, and method of detectionMORTON INT INC·Filed 1991·Granted Oct 20, 1992·31 cites·16 claims
- 0283US5980593ASilent fluorescent petroleum markersMORTON INT INC·Filed 1998·Granted Nov 9, 1999·44 cites·24 claims
- 0381US5205840AMarkers for petroleum, method of tagging, and method of detectionMORTON INT INC·Filed 1991·Granted Apr 27, 1993·35 cites·4 claims
- 0473US6150306AFluorescent tracer dyesMORTON INTERNATIOANL INC·Filed 1999·Granted Nov 21, 2000·30 cites·5 claims
- 0571US7842102B2Liquid dye formulations in non-petroleum based solvent systemsSUNBELT CORP·Filed 2007·Granted Nov 30, 2010·1 cites·10 claims
- 0667US10774280B2Compositions and methods for marking hydrocarbon compositions with non-mutagenic dyesUNITED COLOR MFG INC·Filed 2017·Granted Sep 15, 2020·1 cites·8 claims
- 0762US11702606B2Compositions and methods for marking hydrocarbon compositions with non-mutagenic dyesUNITED COLOR MFG INC·Filed 2020·Granted Jul 18, 2023·0 cites·25 claims
- 0861US5490872AAcid extractable petroleum fuel markersMORTON INT INC·Filed 1994·Granted Feb 13, 1996·16 cites·3 claims
- 0961US5142030ADisazo colorants having a 4,4'-diaminobenzanilide tetrazo componentMORTON INT INC·Filed 1991·Granted Aug 25, 1992·8 cites·2 claims
- 1057US2013089369A1Liquid Dye Formulations in Non-petroleum Based Solvent SystemsSUNBELT CORP·Filed 2012·Application pending·0 cites
- 1153US8529639B2Liquid dye formulations in non-petroleum based solvent systemsFRISWELL MICHAEL R·Filed 2010·Granted Sep 10, 2013·0 cites·3 claims
- 1247US5306343ATagging and identifying asphalt additivesMORTON INT INC·Filed 1993·Granted Apr 26, 1994·13 cites·7 claims
- 1345US5049189AMethod of preparing a solution of sulfonated aryl azo/diaryl guanidine-complexed dyeMORTON INT INC·Filed 1990·Granted Sep 17, 1991·3 cites·9 claims
- 1444US5737871AMethod of preparing and utilizing petroleum fuel markersMORTON INT INC·Filed 1996·Granted Apr 14, 1998·8 cites·6 claims
- 1537US6294110B1Color canceling marking systemsROHM & HAAS·Filed 1999·Granted Sep 25, 2001·6 cites·11 claims
- 1632US6666897B2Black alcohol soluble dye formulationSUNBELT CORP·Filed 2000·Granted Dec 23, 2003·0 cites·17 claims
- 1726US5504199AMethod of introducing dyes to ethanolMORTON INT INC·Filed 1994·Granted Apr 2, 1996·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →