Inventor

LeRoy R. Clavenna

Inventor

Baton Rouge, LA, US

Overview

26→

Patents

1976–2012

Patent span

Chemistry

Primary field (CPC C)

Patents· 26 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B01Jprimary

B01JChemical or physical processes, e.g. catalysis or colloid chemistry22%

C01BNon-metallic elements13%

Y02PClimate change mitigation technologies in the production or processing of goods13%

C10GCracking hydrocarbon oils10%

C10JProduction of producer gas, water-gas, synthesis gas from solid carbonaceous material, or mixtures containing these gases6%

F28GCleaning of internal or external surfaces of heat-exchange or heat-transfer conduits, e.g. water tubes or boilers4%

B01FMixing, e.g. dissolving, emulsifying or dispersing3%

B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general3%

B08BCleaning in general3%

C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals3%

PatentTitleYear

8,211,548'Silicon-containing steel composition with improved heat exchanger corrosion and fouling resistance'2012 7,862,224'Vibration actuation system with independent control of frequency and amplitude'2011 7,726,871'Vibration actuation system with independent control of frequency and amplitude'2010 6,624,204'Carbon monoxide hydrogenation process'2003 6,531,517'Process for increasing carbon monoxide hydrogenation activity of catalysts via low temperature oxidation with water, steam or mixture thereof'2003 6,521,565'Cobalt catalyst compositions useful for conducting carbon monoxide hydrogenation reactions'2003 6,465,529'Process for increasing cobalt catalyst hydrogenation activity via aqueous low temperature oxidation'2002 6,267,912'Distributed injection catalytic partial oxidation process and apparatus for producing synthesis gas'2001 5,883,138'Rapid injection catalytic partial oxidation process and apparatus for producing synthesis gas (law 562)'1999 5,597,474'Production of hydrogen from a fluid coking process using steam reforming'1997 5,496,531'High surface purity heat transfer solids for high temperature fluidized bed reactions'1996 5,476,877'Particulate solids for catalyst supports and heat transfer materials'1995 5,421,841'Process for the elimination of silica and other impurities in fluidized bed syn gas production'1995 5,421,842'High energy level in situ attrition and break up of catalyst to maintain bed fluidization during high temperature operations'1995 5,395,813'Particulate solids for catalyst supports and heat transfer materials'1995 5,395,406'Structurally modified alumina supports, and heat transfer solids for high temperature fluidized bed reactions'1995 5,360,778'High surface purity heat transfer solids for high temperature fluidized bed reactions'1994 5,360,777'High performance alumina heat transfer solids for high temperature fluidized bed synthesis gas reactions'1994 5,356,845'Process for the reactivation of nickel-alumina catalysts'1994 5,348,717'Synthesis gas from particulate catalysts, and admixtures of particulate catalysts and heat transfer solids'1994 4,260,421'Cement production from coal conversion residues'1981 4,193,771'Alkali metal recovery from carbonaceous material conversion process'1980 4,159,195'Hydrothermal alkali metal recovery process'1979 4,157,246'Hydrothermal alkali metal catalyst recovery process'1979 4,060,500'Preparation of mixed metal oxides by decomposition of carbonate solid solutions having the calcite structure'1977 3,939,008'Use of perovskites and perovskite-related compounds as battery cathodes'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2001Patents assigned to EXXON RESEARCH ENGINEERING CO (19)· patent assignee history

1976–1981Based in Baytown, TX, US· patent location history

1994–2012Based in Baton Rouge, LA, US· patent location history

2002–2012Patents assigned to EXXONMOBIL RES & ENG CO (7)· patent assignee history

2012Patents assigned to BRUNO THOMAS (1)· patent assignee history

2012Patents assigned to CHUN CHANGMIN (1)· patent assignee history

2012Patents assigned to CLAVENNA LEROY R (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EXXON RESEARCH ENGINEERING CO	19	1976–2001
EXXONMOBIL RES & ENG CO	7	2002–2012
BRUNO THOMAS	1	2012
CHUN CHANGMIN	1	2012
CLAVENNA LEROY Rself	1	2012

Locations

Location	Patents	Span
Baton Rouge, LA, US	20	1994–2012
Baytown, Texas, US	6	1976–1981