RK

Robert A. Keppel

MT Monsanto Technology: 10 patents #98 of 1,657Top 6%
HP Huntsman Petrochemical: 8 patents #24 of 174Top 15%
Overall (All Time): #260,447 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6046343 Prevention of catalyst attrition and tar formation in manufacture of maleic anhydride Michael J. Mummey, A. Lamar Reeves 2000-04-04
6005121 High productivity process for the production of maleic anhydride Jerry R. Ebner, Michael J. Mummey 1999-12-21
5945368 Molybdenum-modified vanadium-phosphorus oxide catalysts for the production of maleic anhydride Timothy R. Felthouse, Carl J. Schaefer 1999-08-31
5929256 Production of maleic anhydride using molybdenum-modified vanadium-phosphorus oxide catalysts Timothy R. Felthouse, Carl J. Schaefer 1999-07-27
5877331 Prevention of catalyst attrition and tar formation in manufacture of maleic anhydride Michael J. Mummey, A. Lamar Reeves 1999-03-02
5773382 High performance VPO catalyst and process of preparation thereof Scott F. Mitchell, Michael J. Mummey 1998-06-30
5734066 Supression of autoignition in maleic anhydride production Scott F. Mitchell, Michael J. Mummey 1998-03-31
5641722 High performance VPO catalyst and process of preparation thereof Scott F. Mitchell, Michael J. Mummey 1997-06-24
5168090 Shaped oxidation catalyst structures for the production of maleic anhydride Jerry R. Ebner 1992-12-01
4670415 Process for the preparation of iron/lithium -promoted catalysts for the production of maleic anhydride Victoria M. Franchetti 1987-06-02
4632915 Iron/lithium--promoted catalysts for the production of maleic anhydride Victoria M. Franchetti 1986-12-30
4567158 Process for preparing phosphorus-vanadium mixed oxide oxidation catalysts James T. Wrobleski, James W. Edwards, Charles R. Graham, Harold Raffelson 1986-01-28
4562268 Process for producing maleic anhydride James T. Wrobleski, James W. Edwards, Charles R. Graham, Harold Raffelson 1985-12-31
4560674 Catalysts for the production of maleic anhydride James T. Wrobleski, James W. Edwards, Charles R. Graham, Harold Raffelson 1985-12-24
4443641 Attrition resistant bismuth-containing metal/oxygen compositions Samuel J. Tremont, Emerson H. Lee, George D. Davis 1984-04-17
4443642 Attrition resistant metal/oxygen compositions Samuel J. Tremont, Emerson H. Lee, George D. Davis 1984-04-17
4409127 Attrition resistant metal/oxygen compositions and a process for their preparation Samuel J. Tremont, Emerson H. Lee, George D. Davis 1983-10-11
4409133 Attrition resistant bismuth-containing metal/oxygen compositions and a process for their preparation Samuel J. Tremont, Emerson H. Lee, George D. Davis 1983-10-11