Inventor · disambiguated record
Darrel Henry Meffert
Also filed as: MEFFERT DARREL H · MEFFERT DARREL HENRY
5 granted patents·1 pending application·59 citations·filing 2001–2012
77Inventor score
Top patents by PatentIndex Score
6 records- 0188US8359848B2Exhaust treatment device having flow-promoting end capsCATERPILLAR INC·Filed 2010·Granted Jan 29, 2013·10 cites·18 claims
- 0279US7185614B2Double bowl pistonCATERPILLAR INC·Filed 2004·Granted Mar 6, 2007·42 cites·44 claims
- 0355US7757484B2Exhaust treatment device having flow-promoting end capsCATERPILLAR INC·Filed 2007·Granted Jul 20, 2010·1 cites·20 claims
- 0451US6604508B2Volume reducer for pressurizing engine hydraulic systemCATERPILLAR INC·Filed 2001·Granted Aug 12, 2003·6 cites·21 claims
- 0548US2008236118A1Exhaust particulate filter for a machine engine system and assembly method thereforMEYER ROBERT L·Filed 2007·Application pending·0 cites
- 0634US9102372B2Track drive system and methodMEFFERT DARREL HENRY·Filed 2012·Granted Aug 11, 2015·0 cites·20 claims
Join the waitlist — get patent alerts
Get an alert when Darrel Henry Meffert files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →