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Inventor

G. Paull Torrence

Inventor
League City, TX, US

Overview

53→
Patents
1990–2018
Patent span
Chemistry
Primary field (CPC C)

Patents· 53 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds65%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry14%
Y02PClimate change mitigation technologies in the production or processing of goods11%
B01DSeparation5%
C08JWorking-up2%
C01BNon-metallic elements1%
C10LFuels not otherwise provided for1%
PatentTitleYear
9,862,669'Process for recovering halogen promoters and removing permanganate reducing compounds'20189,663,437'Production of acetic acid with high conversion rate'20179,598,342'Production of acetic acid with enhanced catalyst stability'20179,567,282'Production of acetic acid with high conversion rate'20179,409,163'Purification of acetic acid product streams'20169,409,846'Process for separating product gas using carbonylation processes'20169,346,734'Removal of aromatics from carbonylation process'20169,216,936'Process for recovering halogen promoters and removing permanganate reducing compounds'20159,056,825'Process for recovering halogen promoters and removing permanganate reducing compounds'20159,024,061'Methanol carbonylation process with rhodium catalyst and a metallic co-catalyst selected from transition metals, zinc, beryllium, indium, tin, strontium and barium'20158,952,196'Removal of aromatics from carbonylation process'20158,932,372'Integrated process for producing alcohols from a mixed acid feed'20158,916,727'Production of acetic acid with enhanced catalyst stability'20148,877,963'Production of acetic acid with high conversion rate'20148,853,466'Integrated process for producing ethanol from methanol'20148,853,467'Integrated process for producing ethanol'20148,835,681'Methanol carbonylation process with rhodium catalyst and a lanthanide metal co-catalyst'20148,829,253'Integrated process for producing ethanol from methanol'20148,785,684'Methanol carbonylation process with rhodium catalyst, an iodide salt and a metallic co-catalyst selected from transition metals, indium, strontium, barium, zinc, tin and heteropoly acids'20148,729,318'Process for producing ethanol from methyl acetate'20148,697,908'Removal of amine compounds from carbonylation process stream containing corrosion metal contaminants'20148,664,283'Purification of acetic acid product streams'20148,536,367'Vinyl ester production from acetylene and carboxylic acid utilizing homogeneous catalyst'20138,461,379'Production of acetic acid comprising feeding at least one reactant to a recycle stream'20138,394,988'Production of acetic acid with high conversion rate'20138,173,830'Vinyl ester production from acetylene and carboxylic acid utilizing homogeneous catalyst'20128,017,802'Control of impurities in reaction product of rhodium-catalyzed methanol carbonylation'20117,982,065'Vinyl ester production from acetylene and carboxylic acid utilizing heterogeneous catalyst'20117,678,939'Acetic acid production methods incorporating tin or ruthenium catalyst stabilizers'20107,053,241'Acetic acid production methods incorporating at least one metal salt as a catalyst stabilizer'20067,005,541'Low water methanol carbonylation process for high acetic acid production and for water balance control'20066,677,480'Process control in production of acetic acid via use of heavy phase density measurement'20046,667,418'Oxidation treatment of a recycle stream in production of acetic acid by methanol carbonylation'20036,657,078'Low energy carbonylation process'20036,627,770'Method and apparatus for sequesting entrained and volatile catalyst species in a carbonylation process'20036,339,171'Removal or reduction of permanganate reducing compounds and alkyl iodides from a carbonylation process stream'20026,303,813'Rhodium/inorganic iodide catalyst system for methanol carbonylation process with improved impurity profile'20016,225,498'Method of removing organic iodides from organic media'20016,211,405'Addition of iridium to the rhodium/inorganic iodide catalyst system'20016,143,930'Removal of permanganate reducing compounds and alkyl iodides from a carbonylation process stream'20005,783,731'Removal of carbonyl impurities from a carbonylation process stream'19985,466,874'Polymeric carbonylation catalyst system'19955,300,685'Removal of halide impurities from organic liquids'19945,281,359'Polymeric carbonylation catalyst system'19945,206,434'Purification process for methyl acetate'19935,202,481'Purification of acetic acid produced by the low water carbonylation of methanol by treatment with ozone'19935,155,266'Purification of acetic acid with ozone in the presence of an oxidation catalyst'19925,155,265'Purification of acetic acid with ozone followed by treatment with activated carbon and/or an ion-exchange resin'19925,144,068'Methanol carbonylation process'19925,026,908'Methanol carbonylation process'19915,001,259'Methanol carbonylation process'19914,994,608'Addition of hydrogen to carbon monoxide feed gas in producing acetic acid by carbonylation of methanol'19914,894,477'Process for regenerating a carbonylation catalyst solution to remove corrosion metals and carbonylation of methanol to acetic acid'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1998Patents assigned to HOECHST CELANESE CORP (13)· patent assignee history
1990–2004Based in Corpus Christi, TX, US· patent location history
2000–2018Patents assigned to CELANESE INT CORP (40)· patent assignee history
2006–2018Based in League City, TX, US· patent location history
2011Based in Houston, TX, US· patent location history
2012–2017Patents assigned to TORRENCE G PAULL (16)· patent assignee history
2013–2017Patents assigned to SHAVER RONALD DAVID (5)· patent assignee history
2013–2017Patents assigned to HOKKANEN BRIAN W (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CELANESE INT CORP402000–2018
TORRENCE G PAULLself162012–2017
HOECHST CELANESE CORP131990–1998
SHAVER RONALD DAVID52013–2017
HOKKANEN BRIAN W42013–2017
Locations
LocationPatentsSpan
League City, Texas, US302006–2018
Corpus Christi, Texas, US221990–2004
Houston, Texas, US12011