RH

Rudolf F. Heldeweg

Shell Oil Compny: 2 patents #1,477 of 4,423Top 35%
Overall (All Time): #2,338,319 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4765800 Gasoline composition Cornelis Van Es, Richard Miles, Gautam Tavanappa Kalghatgi, John S. McArragher 1988-08-23
4389221 Gasoline composition and method for reducing fuel consumption Leonard B. Graiff, Corrie M. J. Leenaars 1983-06-21