Inventor
Yaw-Hwa Liu
Inventor
Missouri City, TX, US
Overview
Patents· 32 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds52%
B01DSeparation16%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry16%
Y02PClimate change mitigation technologies in the production or processing of goods13%
C25BElectrolytic or electrophoretic processes for the production of compounds or non-metals3%
PatentTitleYear
10,829,428Process for flashing a reaction medium202010,710,952Process for flashing a reaction medium202010,689,319Processes for purifying acetic acid and hydrating anhydride202010,526,270Process to produce acetic acid with recycle of water202010,173,955Processes for producing an acetic acid product having low butyl acetate content201910,160,714Processes for purifying acetic acid and hydrating anhydride201810,099,990Process for flashing a reaction medium20189,957,216Processes for producing acetic acid20189,908,835'Processes for purifying acetic and hydrating anhydride'20189,776,942'Processes for producing an acetic acid product having low butyl acetate content'20179,695,101'Processes for producing acetic acid with decanter control'20179,688,600'Processes for improving acetic acid yield by removing iron'20179,676,694'Process for producing acetic acid'20179,580,377'Process for producing acetic acid by introducing a lithium compound'20179,540,304'Processes for producing an acetic acid product having low butyl acetate content'20179,540,303'Processes for producing acetic acid'20179,540,302'Processes for producing acetic acid'20179,458,077'Reducing hydrogen iodide content in carbonylation processes'20169,458,078'Processes for producing acetic acid from a reaction medium having low ethyl iodide content'20169,416,088'Process to produce acetic acid with recycle of water'20169,382,183'Process for flashing a reaction medium'20169,382,186'Process for producing acetic acid'20169,346,734'Removal of aromatics from carbonylation process'20169,340,481'Process for flashing a reaction medium comprising lithium acetate'20169,302,969'Processes for producing acetic acid by introducing a lithium compound'20169,302,975'Process for flashing a reaction medium'20169,260,369'Processes for producing acetic acid product having low butyl acetate content'20169,233,907'Reducing hydrogen iodide content in carbonylation processes'20168,952,196'Removal of aromatics from carbonylation process'20158,697,908'Removal of amine compounds from carbonylation process stream containing corrosion metal contaminants'20145,567,299'Process for the electrochemical oxidation of arylketones'19965,500,099'Process for the electrochemical oxidation of arylketones'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996Patents assigned to HOECHST CELANESE CORP (2)· patent assignee history
1996Based in Sugarland, TX, US· patent location history
2014–2020Patents assigned to CELANESE INT CORP (30)· patent assignee history
2014–2015Patents assigned to LIU YAW-HWA (2)· patent assignee history
2014–2015Patents assigned to TORRENCE G PAULL (2)· patent assignee history
2014Patents assigned to HOKKANEN BRIAN (1)· patent assignee history
2014–2020Based in Missouri City, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CELANESE INT CORP | 30 | 2014–2020 |
| HOECHST CELANESE CORP | 2 | 1996 |
| LIU YAW-HWAself | 2 | 2014–2015 |
| TORRENCE G PAULL | 2 | 2014–2015 |
| HOKKANEN BRIAN | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Missouri City, Texas, US | 30 | 2014–2020 |
| Sugarland, Texas, US | 2 | 1996 |