SH

Stuart D. Hellring

PO Ppg Industries Ohio: 54 patents #6 of 1,316Top 1%
EX ExxonMobil: 37 patents #217 of 10,161Top 3%
University of California: 3 patents #2,984 of 18,278Top 20%
PI Prc-Desoto International: 2 patents #37 of 129Top 30%
Dow Corning: 1 patents #971 of 1,768Top 55%
KS Kobe Steel: 1 patents #857 of 2,031Top 45%
📍 Pittsburgh, PA: #10 of 7,570 inventorsTop 1%
🗺 Pennsylvania: #171 of 74,527 inventorsTop 1%
Overall (All Time): #16,580 of 4,157,543Top 1%
93
Patents All Time

Issued Patents All Time

Showing 51–75 of 93 patents

Patent #TitleCo-InventorsDate
8088323 Process of electrospinning organic-inorganic fibers Kaliappa G. Ragunathan, Kenneth J. Balog, Hong Li, Robert A. Montague 2012-01-03
7632563 Transparent composite articles Kaliappa G. Ragunathan, Thomas G. Rakavina, Victoria A. Trette 2009-12-15
7279119 Silica and silica-based slurry Colin P. McCann, Suryadevara V. Babu, Yuzhuo Li, Satish Narayanan, Robert L. Auger 2007-10-09
7015271 Hydrophobic particulate inorganic oxides and polymeric compositions containing same Jo-Ann E. Bice, Timothy A. Okel 2006-03-21
6736891 Process for producing hydrophobic particulate inorganic oxides Jo-Ann E. Bice, Timothy A. Okel, James Richard Hahn 2004-05-18
6656241 Silica-based slurry Colin P. McCann, Charles F. Kahle, II, Yuzhuo Li, Jason Keleher 2003-12-02
6207871 High-purity meta-xylene production process David L. Stern 2001-03-27
6018087 Isomerization of dimethylnaphthalene to produce 2,6-dimethylnaphthalene Masahiro Motoyuki, Koji Yamamoto, Shingo Yoshida, Seiichi Yamamoto, Ajit V. Sapre +2 more 2000-01-25
6002059 Process for upgrading natural gas Scott A. Stevenson 1999-12-14
5942651 Process for converting C.sub.9 + aromatic hydrocarbons to lighter aromatic products by transalkylation in the prescence of two zeolite-containing catalysts James H. Beech, Jr., Terry E. Helton, Timothy F. Kinn, Sadi Mizrahi, Norman J. Rouleau 1999-08-24
5780703 Process for producing low aromatic diesel fuel with high cetane index Clarence D. Chang, David O. Marler, Jose G. Santiesteban, James C. Vartuli 1998-07-14
5639931 Process for producing low aromatic diesel fuel with high cetane index Albin Huss, Jr., Michael E. Landis, David O. Marler, Gerald J. Teitman, Hye Kyung Cho Timken +1 more 1997-06-17
5583276 Process for producing low aromatic diesel fuel with high cetane index Charles T. Kresge, David O. Marler, Ernest W. Valyocsik 1996-12-10
5461182 Hydrogen transfer and isoparaffin-olefin alkylation process Albin Huss, Jr., Robert T. Thomson 1995-10-24
5453555 Selective 1,2-diarylethane synthesis Clarence D. Chang 1995-09-26
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
5227552 Process for hydrogenating alkenes in the presence of alkanes and a heterogeneous catalyst Clarence D. Chang, Randy F. Striebel 1993-07-13
5219546 Synthesis of crystalline mordenite-type material Randy F. Striebel 1993-06-15
5219547 Synthesis of crystalline mordenite-type material Randy F. Striebel 1993-06-15
5211935 Synthesis of crystalline mordenite-type material Clarence D. Chang, Randy F. Striebel 1993-05-18
5209918 Synthesis of crystalline ZSM-5-type material Randy F. Striebel 1993-05-11
5190736 Synthesis of crystalline ZSM-35 Clarence D. Chang, John D. Lutner 1993-03-02
5174978 Synthesis of crystalline ZSM-5-type material Randy F. Striebel 1992-12-29