Inventor

Rex R. Stevens

Inventor

Midland, MI, US

Overview

18→

Patents

1980–2020

Patent span

Chemistry

Primary field (CPC C)

Patents· 18 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds27%

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

Y02PClimate change mitigation technologies in the production or processing of goods19%

C10LFuels not otherwise provided for11%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

B01DSeparation3%

B27KProcesses, apparatus or selection of substances for impregnating, staining, dyeing, bleaching of wood or similar materials, or treating of wood or similar materials with permeant liquids, not otherwise provided for3%

C02FTreatment of water, waste water, sewage, or sludge3%

C04BLime, magnesia3%

C13BProduction of sucrose3%

PatentTitleYear

10,875,820Catalyst for converting syngas to mixed alcohols2020 9,290,425'Production of mixed alcohols from synthesis gas'2016 9,085,741'Mixed alcohol fuels for internal combustion engines, furnaces, boilers, kilns and gasifiers and slurry transportation'2015 8,277,522'Mixed alcohol fuels for internal combustion engines, furnaces, boilers, kilns and gasifiers'2012 7,559,961'Mixed alcohol fuels for internal combustion engines, furnaces, boilers, kilns and gasifiers'2009 6,858,048'Fuels for internal combustion engines'2005 5,663,455'Process for conducting etherification reactions using as catalysts strong-acid, cation-exchange resins prepared under high temperature conditions'1997 4,895,662'Purification of effluent from wood pulp bleach plant'1990 4,882,360'Process for producing alcohols from synthesis gas'1989 4,871,397'Process for decolorizing aqueous sugar solution'1989 4,831,060'Mixed alcohols production from syngas'1989 4,825,013'Preparation of ethanol and higher alcohols from lower carbon number alcohols'1989 4,762,858'Syngas conversion to oxygenates by reduced yttrium/lanthanide/actinide-modified catalyst'1988 4,752,622'Process for producing alcohols from synthesis gas'1988 4,752,623'Mixed alcohols production from syngas'1988 4,675,344'Method for adjusting methanol to higher alcohol ratios'1987 4,533,508'Metal oxide fibers from acrylate salts'1985 4,218,516'Pigment for blocking tannin migration'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1997Patents assigned to DOW CHEMICAL CO (12)· patent assignee history

1980–1990Based in Midland, MI, US· patent location history

1997–2020Based in Grand Junction, CO, US· patent location history

2012–2020Patents assigned to STEVENS REX R (4)· patent assignee history

2012–2020Patents assigned to STANDARD ALCOHOL COMPANY OF AMERICA INC (3)· patent assignee history

2012–2015Patents assigned to JIMESON ROBERT M (2)· patent assignee history

2012–2015Patents assigned to RADOSEVICH MARK C (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DOW CHEMICAL CO	12	1980–1997
STEVENS REX Rself	4	2012–2020
STANDARD ALCOHOL COMPANY OF AMERICA INC	3	2012–2020
JIMESON ROBERT M	2	2012–2015
RADOSEVICH MARK C	2	2012–2015

Locations

Location	Patents	Span
Midland, MI, US	11	1980–1990
Grand Junction, CO, US	7	1997–2020