RP

Roy E. Pratt

Chevron: 19 patents #204 of 4,788Top 5%
Overall (All Time): #242,743 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5545602 Catalyst with specified pore size distribution Gerald V. Nelson, Govanon Nongbri, David E. Sherwood, Jr., Pei-Shing E. Dai 1996-08-13
5468371 Catalyst for residual conversion demonstrating reduced toluene insolubles Gerald V. Nelson, Govanon Nongbri 1995-11-21
5435908 Hydroconversion process employing catalyst with specified pore size distribution Gerald V. Nelson, Govanon Nongbri, David E. Sherwood, Jr., Pei-Shing E. Dai 1995-07-25
5416054 Hydroconversion catalyst with specified pore size distribution Pei-Shing E. Dai, Gerald V. Nelson, Govanon Nongbri, David E. Sherwood, Jr. 1995-05-16
5399259 Hydroconversion process employing catalyst with specified pore size distribution Pei-Shing E. Dai, Gerald V. Nelson, Govanon Nongbri, David E. Sherwood, Jr. 1995-03-21
5395512 Hydrocarbon cracking process employing zeolite catalysts with hybrid [A1,B]-zeolite additives Hsu-Hui Hsing, Chih-Hao M. Tsang, Chi-Lin O'Young 1995-03-07
5318689 Heavy naphtha conversion process Hsu-Hui Hsing 1994-06-07
5108580 Two catalyst stage hydrocarbon cracking process Govanon Nongbri, Gerald V. Nelson, Charles H. Schrader, William B. Livingston, Michael P. Bellinger +1 more 1992-04-28
5043056 Suppressing sediment formation in an ebullated bed process Jitendra Patel 1991-08-27
5028310 Reduction of SO.sub.x in regenerator off gas of a fluid cracking unit David E. Self, Joseph C. Demeter 1991-07-02
4725408 Fluid catalytic cracking apparatus Scott M. Sayles, Kerry W. Bowers, Richard P. Scott 1988-02-16
4619758 Fluid catalytic cracking method Scott M. Sayles, Kerry W. Bowers, Richard P. Scott 1986-10-28
4595145 Air distribution apparatus for a fluid catalytic cracking catalyst regenerator Thomas A. Lionetti, John P. MacLean 1986-06-17
4430201 Regeneration of fluidizable catalyst Leonce F. Castagnos, Jr. 1984-02-07
4419221 Cracking with short contact time and high temperatures Leonce F. Castagnos, Jr. 1983-12-06
4388176 Hydrocarbon conversion process Scott M. Sayles, Kerry W. Bowers, Richard P. Scott 1983-06-14
4324688 Regeneration of cracking catalyst Leonce F. Castagnos, Jr., William R. Menzies, III 1982-04-13
4304659 Method for controlling regenerator temperature in a fluidized catalytic cracking process William R. Menzies, III, Leonce F. Castagnos, Jr. 1981-12-08
4243630 Fluid catalytic cracking unit yield monitor Howard C. Kliesch, Daniel N. McWilliams, Donald H. Schmude 1981-01-06