Inventor · disambiguated record
R. Douglas Hudgens
Also filed as: HUDGENS R D · HUDGENS R DOUGLAS
5 granted patents·2 pending applications·355 citations·filing 1996–2013
86Inventor score
Top patents by PatentIndex Score
7 records- 0193US5662799ASlow release coolant filterFLEETGUARD INC·Filed 1996·Granted Sep 2, 1997·133 cites·27 claims
- 0291USRE37369ESlow release coolant filterFLEETGUARD INC·Filed 1999·Granted Sep 18, 2001·105 cites·37 claims
- 0390US5772873ASlow release coolant filterFLEETGUARD INC·Filed 1997·Granted Jun 30, 1998·89 cites·10 claims
- 0478US6953534B1Engine antifreeze compositionFLEETGUARD INC·Filed 2000·Granted Oct 11, 2005·14 cites·25 claims
- 0576US6733687B1Hybrid supplemental coolant additiveFLEETGUARD INC·Filed 2000·Granted May 11, 2004·14 cites·28 claims
- 0649US2006033077A1Engine antifreeze compositionFLEETGUARD INC·Filed 2005·Application pending·0 cites
- 0738US2013199983A1Lubricant oil filter with continuous release additive vesselCUMMINS FILTRATION IP INC·Filed 2013·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →