Inventor

Thomas G. Attig

Inventor

Aurora, OH, US

Overview

1984–2006

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 compounds39%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry27%

C07DHeterocyclic compounds18%

Y02PClimate change mitigation technologies in the production or processing of goods9%

C01CAmmonia6%

PatentTitleYear

6,989,455'Two-stage process for the hydrogenation of maleic acid to 1,4-butanediol'2006 6,486,367'Process for the hydrogenation of maleic acid to 1,4-butanediol'2002 5,969,164'Catalysts for the hydrogenation of maleic acid to 1,4-butanediol'1999 5,698,749'Catalysts for the hydrogenation of aqueous maleic acid to 1,4-butanediol'1997 5,473,086'Process for the hydrogenation of maleic acid to 1,4-butanediol'1995 5,440,068'Acetonitrile purification via an adsorption-based process'1995 5,196,602'Two-stage maleic anhydride hydrogenation process for 1,4-butanediol synthesis'1993 5,072,009'Vapor-phase hydrogenation of maleic anhydride to tetrahydrofuran and gamma-butyrolactone'1991 4,965,378'Vapor-phase hydrogenation of maleic anhydride to tetrahydrofuran and gamma-butyrolactone'1990 4,851,546'Preparation of pyrrolidones by catalytic hydrogenation of maleimides'1989 4,827,001'Preparation of .gamma.-butyrolactone and 1,4-butanediol by catalytic hydrogenation of maleic acid'1989 4,790,963'Process for synthesis of esters from gaseous reactants containing organic hydroxy compounds and mixtures of hydrogen and carbon monoxide'1988 4,736,054'Ammoxidation of paraffins to acrylonitrile in the presence of zeolite catalysts'1988 4,725,626'Manufacture of alcohols from synthesis gas'1988 4,614,750'Ruthenium-copper-containing, activated-carbon-supported catalyst and process for making alcohol using same'1986 4,560,672'Ruthenium-copper-containing, activated-carbon-supported catalyst and process for making alcohol using same'1985 4,511,548'Ammoxidation of methanol to produce hydrogen cyanide'1985 4,485,079'Ammoxidation of methanol to produce hydrogen cyanide'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1999Patents assigned to STANDARD OIL CO OHIO (16)· patent assignee history

1984–2002Based in Aurora, OH, US· patent location history

2002Patents assigned to STANDARD OIL CO (1)· patent assignee history

2006Patents assigned to ISP INVESTMENTS INC (1)· patent assignee history

2006Based in Batavia, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
STANDARD OIL CO OHIO	16	1984–1999
ISP INVESTMENTS INC	1	2006
STANDARD OIL CO	1	2002

Locations

Location	Patents	Span
Aurora, OH, US	17	1984–2002
Batavia, Illinois, US	1	2006