Inventor

Nathan Kirk Powell

Inventor

Waxahachie, TX, US

Overview

2009–2015

Patent span

Chemistry

Primary field (CPC C)

Patents· 15 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds54%

B01DSeparation29%

Y02PClimate change mitigation technologies in the production or processing of goods11%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry7%

PatentTitleYear

9,150,478'Process to recover alcohol from an ethyl acetate residue stream'2015 9,102,581'Process for producing ethanol using an extractive distillation column'2015 9,073,814'Process for heat integration for ethanol production and purification process'2015 9,000,237'Ethanol refining process using intermediate reboiler'2015 8,927,784'Process to recover alcohol from an ethyl acetate residue stream'2015 8,884,080'Reduced energy alcohol separation process'2014 8,759,576'Processes for purifying acetic anhydride'2014 8,754,268'Process for removing water from alcohol mixtures'2014 8,686,200'Process to recover alcohol from an acidic residue stream'2014 8,552,226'Process for heat integration for ethanol production and purification process'2013 8,304,587'Process for producing ethanol using an extractive distillation column'2012 8,173,076'Method and apparatus for making acetic acid with improved light ends column productivity'2012 7,989,659'Method and apparatus for making acetic acid with improved light ends column productivity'2011 7,619,113'Method and apparatus for making acetic acid with improved purification'2009 7,612,232'Purification of acetic acid from wood acetylation process'2009

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2009–2015Patents assigned to CELANESE INT CORP (15)· patent assignee history

2009–2015Based in Waxahachie, TX, US· patent location history

2012–2015Patents assigned to WARNER R JAY (7)· patent assignee history

2012–2015Patents assigned to JEVTIC RADMILA (6)· patent assignee history

2012–2015Patents assigned to JOHNSTON VICTOR J (6)· patent assignee history

2012–2015Patents assigned to SARAGER LINCOLN (6)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CELANESE INT CORP	15	2009–2015
WARNER R JAY	7	2012–2015
JEVTIC RADMILA	6	2012–2015
JOHNSTON VICTOR J	6	2012–2015
SARAGER LINCOLN	6	2012–2015

Locations

Location	Patents	Span
Waxahachie, Texas, US	15	2009–2015