Inventor · disambiguated record

Darwin L. Steffensen

Also filed as: STEFFENSEN DARWIN · STEFFENSEN DARWIN L

4 granted patents·1 pending application·28 citations·filing 2009–2016

74Inventor score

Technology areasA01C B60K F04D

Files withCNH IND AMERICA LLC2 BETTIN LEONARD A1 CNH AMERICA LLC1 CNH CANADA LTD1

Top patents by PatentIndex Score

5 records

0183US9357689B2Pressure control system and method for an agricultural planterCNH AMERICA LLC·Filed 2013·Granted Jun 7, 2016·18 cites·7 claims
0277US9769977B2Pressure control system and method for an agricultural planterCNH IND AMERICA LLC·Filed 2016·Granted Sep 26, 2017·5 cites·20 claims
0365US9788476B2Pressure control system and method for an agricultural planterCNH IND AMERICA LLC·Filed 2016·Granted Oct 17, 2017·2 cites·20 claims
0452US7980338B2Agricultural implement having apparatus for stowing PTO driveline shaft when the PTO driveline shaft is not in useCNH CANADA LTD·Filed 2009·Granted Jul 19, 2011·3 cites·18 claims
0548US2010205953A1Case Drain Line Pressure Switch With Automatic Fan Drive Motor ShutdownBETTIN LEONARD A·Filed 2009·Application pending·0 cites

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