DS

David L. Spivey

TL The Lubrizol: 4 patents #170 of 659Top 30%
📍 Stafford, GB: #42 of 251 inventorsTop 20%
Overall (All Time): #1,115,955 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12104132 Fuel additive compositions for gasoline direct injection engines Garrett Parker, Stuart L. Bartley, Alexander Michlberger, Anthony R. Frank, Michael D. Nicholls +4 more 2024-10-01
7938867 Fuel composition containing a medium substantially free of sulphur and process thereof Robert H. Barbour, William B. Chamberlin, III, John K. Pudelski 2011-05-10
7901471 Fuel composition containing a medium substantially free of sulphur and process thereof Robert H. Barbour, William B. Chamberlin, III, John K. Pudelski 2011-03-08
7402186 Fuel composition containing a medium substantially free of sulphur and process thereof Robert H. Barbour, William B. Chamberlin, III, John K. Pudelski 2008-07-22