Inventor
Leo E. Hakka
Inventor
Dollard-des-Ormeaux, CA
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation41%
Y02ATechnologies for adaptation to climate change15%
Y02CCapture, storage, sequestration or disposal of greenhouse gases [ghg]15%
C01BNon-metallic elements7%
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals4%
C07CAcyclic or carbocyclic compounds4%
C10GCracking hydrocarbon oils4%
C10LFuels not otherwise provided for4%
C10MLubricating compositions4%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions4%
PatentTitleYear
7,416,582'Method and apparatus for NOx and Hg removal'20087,384,616'Waste gas treatment process including removal of mercury'20087,214,358'Low energy regenerable SO2 scrubbing process'20077,056,482'Method for recovery of CO2 from gas streams'20066,872,371'Method and apparatus for NOx and SO2 removal'20056,531,103'Process for removing sulfur compounds from gas and liquid hydrocarbon streams'20036,342,169'Safe storage and transportation of sulfur dioxide'20025,292,407'Process for converting heat stable amine salts to heat regenerable amine salts'19945,262,139'Removal of sulfur dioxide from gas streams'19935,202,103'Removal of sulfur dioxide from gas streams'19935,019,361'Removal and recovery of sulphur dioxide from gas streams'19915,017,350'Gas scrubbing process'19914,059,534'Hydrocarbon/silicon oil lubricating compositions for low temperature use'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1991Patents assigned to UNION CARBIDE CANADA LTD (3)· patent assignee history
1977–2008Based in Dollard-des-Ormeaux, CA· patent location history
1993–2003Patents assigned to UNION CARBIDE CHEM PLASTIC (4)· patent assignee history
1993–2007Based in Montreal, CA· patent location history
2002–2008Patents assigned to CANSOLV TECHNOLOGIES INC (6)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CANSOLV TECHNOLOGIES INC | 6 | 2002–2008 |
| UNION CARBIDE CHEM PLASTIC | 4 | 1993–2003 |
| UNION CARBIDE CANADA LTD | 3 | 1977–1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Dollard-des-Ormeaux, CA | 11 | 1977–2008 |
| Montreal, CA | 2 | 1993–2007 |