Inventor · disambiguated record

Derek Hiemstra

Also filed as: HIEMSTRA DEREK

2 granted patents·2 citations·filing 2009–2014

37Inventor score

Technology areasF01N F02D

Files withDONALDSON CO INC1 IRLBECK JILL N1

Top patents by PatentIndex Score

2 records

0152US8061129B2System and method to regenerate a diesel particulate filterIRLBECK JILL N·Filed 2009·Granted Nov 22, 2011·2 cites·25 claims
0251US9273585B2System and method for regenerating an auxiliary power unit exhaust filterDONALDSON CO INC·Filed 2014·Granted Mar 1, 2016·0 cites·8 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →