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Mark A. Bershausen

PP Phillips Petroleum: 1 patents #819 of 1,401Top 60%
📍 Brazoria, TX: #29 of 56 inventorsTop 55%
🗺 Texas: #73,555 of 125,132 inventorsTop 60%
Overall (All Time): #3,946,250 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4723440 Apparatus for temporarily plugging inaccessible tube and method of leak testing utilizing the same — 1988-02-09