MG

Mark L. Gravley

PP Phillips Petroleum: 2 patents #22 of 170Top 15%
📍 Fort Wayne, IN: #9 of 130 inventorsTop 7%
🗺 Indiana: #103 of 1,469 inventorsTop 8%
Overall (1989): #20,995 of 140,708Top 15%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4824643 Apparatus for producing carbon black E. Webb Henderson 1989-04-25
4822588 Process for producing carbon black E. Webb Henderson 1989-04-18