Peter S. Maa — 17 Patents at ExxonMobil

Peter S. Maa has been granted 17 US patents while listed as an inventor at ExxonMobil. The first was granted in 1980 and the most recent in June 2018. Peter S. Maa ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list Peter S. Maa in Sugar Land, TX, US.

Patents per Year

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
9994778	Direct coal liquefaction process and system	Richard F. Bauman, Richard P. O'Connor	2018-06-12
7419585	Process for upgrading residua	Craig Y. Sabottke	2008-09-02	$231,550,000
7160437	Method for determining the source of fouling in thermal conversion process units	Leo D. Brown, William N. Olmstead, Michael Siskin	2007-01-09	$252,942,000
5795464	Conversion of the organic component from tar sands to lower boiling products	Bruce M. Sankey, Roby Bearden, Jr.	1998-08-18	$438,498,000
5338441	Liquefaction process	Steve C. LeViness, Steve J. Hsia, Michael Y. Wen, Stephen M. Davis, Claude C. Culross	1994-08-16	$52,479,000
5294349	Coal depolymerization and hydroprocessing	George M. Kramer, Edwin R. Ernst, Chang S. Hsu, Gopal H. Singhal	1994-03-15	$39,080,000
5096569	Catalytic hydropyrolysis of carbonaceous material with char recycle	Russell R. Chianelli	1992-03-17	$48,829,000
5055181	Hydropyrolysis-gasification of carbonaceous material	Martin L. Gorbaty	1991-10-08	$49,276,000
4831003	Catalyst composition and process of making	Robert J. Lang, Veluswamy R. LaVanga	1989-05-16	$25,481,000
4824558	Coal liquefaction process with metal/iodine cocatalyst	Lonnie W. Vernon, William E. Winter, Gopal H. Singhal	1989-04-25	$23,361,000
4485008	Liquefaction process	Lavanga R. Veluswamy, Lonnie W. Vernon	1984-11-27	$36,117,000
4338182	Multiple-stage hydrogen-donor coal liquefaction	Lonnie W. Vernon	1982-07-06	$10,351,000
4338184	Coal conversion in the presence of added alkali metal compounds	Lavanga R. Veluswamy, Charles Vadovic	1982-07-06	$10,351,000
4322283	Coal conversion in the presence of added hydrogen sulfide	Lavanga R. Veluswamy	1982-03-30	$21,701,000
4313816	Staged temperature coal conversion process	Lavanga R. Veluswamy	1982-02-02	$12,017,000
4283267	Staged temperature hydrogen-donor coal liquefaction process	Lonnie W. Vernon	1981-08-11	$12,344,000
4189371	Multiple-stage hydrogen-donor coal liquefaction process	Lonnie W. Vernon	1980-02-19	$51,695,000

Peter S. Maa — 17 Patents

Patents per Year

Issued Patents All Time

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