Inventor
David A. Wohleber
Inventor
Lower Burrell, PA, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C01Fprimary
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals42%
B01DSeparation8%
C01BNon-metallic elements8%
C01GCompounds containing metals not covered by subclasses c01d or c01f8%
C22BProduction and refining of metals8%
C25CProcesses for the electrolytic production, recovery or refining of metals8%
Y02PClimate change mitigation technologies in the production or processing of goods8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
PatentTitleYear
4,385,964'Method for preventing the undesirable condensation of aluminum chloride in a fractional distillation column'19834,235,860'Chlorination of aluminous material at superatmospheric pressure'19804,168,215'Situ cleaning of electrolytic cells'19794,096,234'Production of anhydrous aluminum chloride from clay using catalyst and recycling of silicon chloride'19784,086,320'Production of aluminum chloride from raw materials containing aluminum compounds and silicon compounds'19784,039,647'Production of aluminum chloride'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1983Patents assigned to ALUMINUM CO OF AMERICA (6)· patent assignee history
1977–1983Based in Lower Burrell, PA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ALUMINUM CO OF AMERICA | 6 | 1977–1983 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lower Burrell, Pennsylvania, US | 6 | 1977–1983 |