Assignee
HALL CHEMICAL COMPANY
US·3 granted patents·144 citations·filing 1987–1996
Top patents by PatentIndex Score
3 records- 0190US5788943ABattery-grade nickel hydroxide and method for its preparationHALL CHEMICAL COMPANY·Filed 1996·Granted Aug 4, 1998·80 cites·12 claims
- 0290US4861565AMethod of separately recovering metal values of petroleum refining catalystHALL CHEMICAL COMPANY·Filed 1987·Granted Aug 29, 1989·62 cites·12 claims
- 0341US4921986AMethod and apparatus for producing cobalt acetate from cobalt chipHALL CHEMICAL COMPANY·Filed 1987·Granted May 1, 1990·2 cites·2 claims
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