DB

Daniel M. Barrett

MP Marathon Ashland Petroleum: 1 patents #38 of 83Top 50%
ML Marathon Petroleum Company Lp: 1 patents #64 of 146Top 45%
📍 Grosse Pointe Park, MI: #93 of 239 inventorsTop 40%
🗺 Michigan: #35,034 of 86,293 inventorsTop 45%
Overall (All Time): #2,110,100 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7988753 Method and apparatus for recovery and recycling of hydrogen Edward P. Fox, Dennis W. Keppers, Larry L. Holt, Edward A. Bullerdiek, James H. Miller 2011-08-02
7637970 Method and apparatus for recovery and recycling of hydrogen Edward P. Fox, Dennis W. Keppers, Larry L. Holt, Edward A. Bullerdiek, James H. Miller 2009-12-29