Inventor · disambiguated record
Harold E. Erwin
Also filed as: ERWIN HAROLD E · ERWIN HAROLD EDWARD
17 granted patents·6 pending applications·152 citations·filing 1996–2019
94Inventor score
Top patents by PatentIndex Score
23 records- 0193US10363907B2Fluid exchange machineBG INTELLECTUALS INC·Filed 2016·Granted Jul 30, 2019·14 cites·13 claims
- 0288US9322306B2Transmission fluid exchange machineBG INTELLECTUALS INC·Filed 2013·Granted Apr 26, 2016·9 cites·19 claims
- 0379US6443192B1Vehicle brake flush method and apparatusFiled 2001·Granted Sep 3, 2002·14 cites·8 claims
- 0476US6481469B1Indicator for use on fluid dispensing tankFiled 2002·Granted Nov 19, 2002·12 cites·4 claims
- 0569US6170505B1Automotive-fluid replacement apparatusBG PRODUCTS INC·Filed 1999·Granted Jan 9, 2001·28 cites·11 claims
- 0667US11807198B2Fluid exchange serviceBG INTELLECTUALS INC·Filed 2019·Granted Nov 7, 2023·0 cites·9 claims
- 0766US6536486B2Brake flush methodFiled 2002·Granted Mar 25, 2003·7 cites·2 claims
- 0865US6253805B1Apparatus and improved method for changing automatic transmission fluid in motor vehiclesBG PRODUCTS INC·Filed 2000·Granted Jul 3, 2001·11 cites·11 claims
- 0955US2008010774A1Method and device for cleaning the air intake system of a diesel vehicleBG PRODUCTS INC·Filed 2007·Application pending·0 cites
- 1053US6886664B2Automotive fluid exchange systemBG PRODUCTS INC·Filed 2003·Granted May 3, 2005·6 cites·14 claims
- 1152US2008011327A1Cleaning solution for use in cleaning the air intake system of a diesel vehicleBG PRODUCTS INC·Filed 2007·Application pending·0 cites
- 1251US6655392B2Method and apparatus for cleaning a fuel injected engine plenumBG PRODUCTS INC·Filed 2001·Granted Dec 2, 2003·8 cites·5 claims
- 1347US5692461AApparatus and method for removing cations and anions from an engine coolant liquidBG PRODUCTS INC·Filed 1996·Granted Dec 2, 1997·18 cites·5 claims
- 1443US6478036B1Method and apparatus for cleaning exhaust gas recirculation systemBG PRODUCTS INC·Filed 1999·Granted Nov 12, 2002·10 cites·13 claims
- 1542US6978753B2Automated combustion chamber decarboning squidBG PRODUCTS INC·Filed 2003·Granted Dec 27, 2005·3 cites·9 claims
- 1641US6179018B1Apparatus and improved method for changing automatic transmission fluid in motor vehiclesBG PRODUCTS INC·Filed 1997·Granted Jan 30, 2001·8 cites·1 claims
- 1741US2004250370A1Method and device for cleaning the air intake system of a vehicleBG PRODUCTS INC·Filed 2003·Application pending·0 cites
- 1839US6772772B2Method for cleaning an exhaust gas recirculation systemBG PRODUCTS INC·Filed 2002·Granted Aug 10, 2004·2 cites·6 claims
- 1939US6557517B2Combustion chamber decarboning squidFiled 2001·Granted May 6, 2003·2 cites·7 claims
- 2039US2007029139A1Oil changing system and methodBG PRODUCTS INC·Filed 2005·Application pending·0 cites
- 2137US2005229952A1Diesel fuel injector cleaning system and methodBG PRODUCTS INC·Filed 2004·Application pending·0 cites
- 2232US6874461B2Combustion chamber decarboning squidFiled 2003·Granted Apr 5, 2005·0 cites·14 claims
- 2332US2003183190A1Combustion chamber decarboning squidFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →