Lew T. Gray

PP Phillips Petroleum: 3 patents #450 of 1,401Top 35%

📍 Greenville, SC: #581 of 1,770 inventorsTop 35%

🗺 South Carolina: #4,446 of 15,501 inventorsTop 30%

Overall (All Time): #1,673,433 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4752402	Settling pond separation using permeable fabric and weighting	—	1988-06-21
4749479	Apparatus for separation of liquids and solids using fabrics	—	1988-06-07
4334801	Method and apparatus for covering a pipeline	—	1982-06-15