PS

Phillip Sigmund

📍 Bragg Creek, CA: #6 of 15 inventorsTop 40%
Overall (All Time): #2,272,125 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5653250 Vapor-liquid equilibrium and interfacial tension measuring apparatus and method Zahidah Zain, Dawood Mohamed Anwar Raja, Muhammad Daud 1997-08-05
4217955 Oil recovery process Jong Ick Lee, James E. Fosti 1980-08-19