Inventor

Steven A. Cohen

Inventor
Naperville, IL, US

Overview

62→
Patents
1988–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 62 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds12%
Y02PClimate change mitigation technologies in the production or processing of goods10%
C10GCracking hydrocarbon oils9%
C11CFatty acids from fats, oils or waxes9%
C11BProducing, e.g. by pressing raw materials or by extraction from waste materials, refining or preserving fats, fatty substances, e.g. lanolin, fatty oils or waxes8%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds7%
C10LFuels not otherwise provided for7%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium6%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry5%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution3%
PatentTitleYear
10,909,118Cache optimization for missing data202110,689,582Methods of refining natural oil feedstocks202010,532,972Dibasic esters and the use thereof in plasticizer compositions202010,501,569High-weight glyceride oligomers and methods of making the same201910,479,755Terminally selective metathesis of polyenes derived from natural oil201910,472,588Renewably derived aldehydes and methods of making and using the same201910,294,257Methods for preparing ruthenium carbene complexes and precursors thereto201910,155,833High-weight glyceride oligomers and methods of making the same20189,944,860Methods for treating a metathesis feedstock with metal alkoxides20189,926,255'High-purity dibasic acid compositions and methods of making the same'20189,890,348'Natural oil metathesis compositions and methods'20189,738,853'Renewably derived aldehydes and methods of making and using the same'20179,732,282'Methods of refining natural oil feedstocks'20179,670,132'Dibasic esters and the use thereof in plasticizer compositions'20179,643,989'Methods for preparing ruthenium carbene complex precursors and ruthenium carbene complexes'20179,637,510'Methods for preparing ruthenium carbene complex precursors and ruthenium carbene complexes'20179,518,002'Terminal selective metathesis of polyenes derived from natural oil'20169,512,157'Methods for preparing ruthenium carbene complexes and precursors thereto'20169,469,827'Methods of refining natural oil feedstocks'20169,464,258'Diene-selective hydrogenation of metathesis derived olefins and unsaturated esters'20169,388,097'Methods for treating substrates prior to metathesis reactions, and methods for metathesizing substrates'20169,382,502'Methods of refining and producing isomerized fatty acid esters and fatty acids from natural oil feedstocks'20169,365,487'Methods of refining and producing dibasic esters and acids from natural oil feedstocks'20169,290,719'Renewable fatty acid waxes and methods of making'20169,284,512'Methods of refining and producing dibasic esters and acids from natural oil feedstocks'20169,273,258'Methods of producing jet fuel from natural oil feedstocks through metathesis reactions'20169,267,013'Dibasic esters and the use thereof in plasticizer compositions'20169,051,519'Diene-selective hydrogenation of metathesis derived olefins and unsaturated esters'20159,000,246'Methods of refining and producing dibasic esters and acids from natural oil feedstocks'20158,975,414'Methods for preparing ruthenium carbene complex precursors and ruthenium carbene complexes'20158,957,268'Methods of refining natural oil feedstocks'20158,933,285'Methods of producing jet fuel from natural oil feedstocks through metathesis reactions'20158,889,932'Methods of producing jet fuel from natural oil feedstocks through oxygen-cleaved reactions'20148,779,152'Methods for preparing ruthenium carbene complex precursors and ruthenium carbene complexes'20148,735,640'Methods of refining and producing fuel and specialty chemicals from natural oil feedstocks'20148,729,404'Method and apparatus for optically transparent via filling'20148,680,311'Monolithic electrokinetic pump fabrication'20148,426,535'Chain growth reaction process'20137,972,569'Catalyst and systems incorporating the catalyst'20117,964,681'Chain growth reaction process'20117,943,862'Method and apparatus for optically transparent via filling'20117,767,771'Chain growth reaction process'20107,754,910'Mixed metal oxide catalysts for the ammoxidation of propane and isobutane'20107,531,681'Process for the ammoxidation of propane and isobutane'20097,519,696'Method and apparatus for dynamically modifying a computer system configuration'20097,121,487'Screening apparatus with hammermill'20067,087,686'Chain growth reaction process'20066,931,440'Method and apparatus for dynamically determining whether access to a resource connected to a computer has changed and determining how to access the resource with a new identifier'20056,698,594'Screening machine'20046,240,511'Method and apparatus for detecting system configuration changes'20016,051,524'Olefin polymerization and copolymerization catalyst'20005,955,396'Morphology-controlled olefin polymerization catalyst formed from an emulsion'19995,756,609'Homogeneous metallocene-based olefin polymerization system with increased activity'19985,621,047'Process for preparing linear monofunctional and telechelic difunctional polymers and compositions obtained thereby'19975,512,635'Process for preparing linear monofunctional and telechelic difunctional polymers and compositions obtained thereby'19965,332,707'Olefin polymerization and copolymerization catalyst'19945,296,599'Activated carbamates compounds'19945,227,354'Olefin polymerization and copolymerization catalyst'19935,218,052'Olefin polymerization and copolymerization process'19934,946,816'Morphology-controlled olefin polymerization catalyst'19904,914,257'Method and apparatus for recovering high purity toluene, hexane, titanium tetrachloride and tetrahydrofuran from mixtures'19904,730,064'Heterometallic thiocubanes (C-2044)'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2020Based in Naperville, IL, US· patent location history
1990–1998Patents assigned to AMOCO CORP (8)· patent assignee history
1994–2014Based in Hopkinton, MA, US· patent location history
2001–2009Based in Westboro, MA, US· patent location history
2011–2014Based in Hillsboro, OR, US· patent location history
2013–2015Patents assigned to COHEN STEVEN A (9)· patent assignee history
2014–2020Patents assigned to ELEVANCE RENEWABLE SCIENCES (34)· patent assignee history
2014–2015Patents assigned to LUETKENS JR MELVIN L (5)· patent assignee history
2014–2015Patents assigned to BALAKRISHNAN CHANDER (3)· patent assignee history
2016–2020Based in Woodridge, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ELEVANCE RENEWABLE SCIENCES342014–2020
COHEN STEVEN Aself92013–2015
AMOCO CORP81990–1998
LUETKENS JR MELVIN L52014–2015
BALAKRISHNAN CHANDER32014–2015
Locations
LocationPatentsSpan
Naperville, Illinois, US391988–2020
Woodridge, Illinois, US112016–2020
Westboro, Massachusetts, US32001–2009
Hillsboro, OR, US22011–2014
Hopkinton, Massachusetts, US21994–2014