SH

Stuart D. Hellring

EX ExxonMobil: 3 patents #87 of 736Top 15%
📍 Pittsburgh, PA: #14 of 308 inventorsTop 5%
🗺 Pennsylvania: #176 of 4,234 inventorsTop 5%
Overall (1994): #8,591 of 165,921Top 6%
3
Patents 1994

Issued Patents 1994

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5347060 Phase-transfer catalysis with onium-containing synthetic mesoporous crystalline material Jeffrey S. Beck 1994-09-13
5288475 Synthesis of ZSM-35 Clarence D. Chang 1994-02-22
5288927 Para-selective butylation of phenol over fairly large-pore zeolites Clarence D. Chang 1994-02-22