Inventor
Lee E. Walko
Inventor
Midland, MI, US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry22%
C07CAcyclic or carbocyclic compounds22%
B01DSeparation11%
C08JWorking-up11%
F16LPipes11%
Y02PClimate change mitigation technologies in the production or processing of goods11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
6,933,417'Process for vinyl chloride manufacture from ethane and ethylene with partial CHl recovery from reactor effluent'20056,797,845'Process for vinyl chloride manufacture from ethane and ethylene with immediate HCl recovery from reactor effluent'20045,149,142'Vent collar for plastic lined pipe'19924,568,418'Process for converting polymer solutions into granules'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–1992Patents assigned to DOW CHEMICAL CO (2)· patent assignee history
1986Based in Lake Jackson, TX, US· patent location history
1992–2005Based in Midland, MI, US· patent location history
2004–2005Patents assigned to DOW GLOBAL TECHNOLOGIES INC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DOW CHEMICAL CO | 2 | 1986–1992 |
| DOW GLOBAL TECHNOLOGIES INC | 2 | 2004–2005 |
Locations
| Location | Patents | Span |
|---|---|---|
| Midland, MI, US | 3 | 1992–2005 |
| Lake Jackson, Texas, US | 1 | 1986 |