The Hall Chemical Company
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Aug 04, 1998 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 68 Total Citation Count
- Jan 27, 1987 Earliest Filing
- 3 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
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Recent Publications
- No Recent Publications to Display
Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5788943 Battery-grade nickel hydroxide and method for its preparationExpiredSep 05, 96Aug 04, 98[C01G]
4921986 Method and apparatus for producing cobalt acetate from cobalt chipExpiredDec 30, 87May 01, 90[C07F]
4861565 Method of separately recovering metal values of petroleum refining catalystExpiredJan 27, 87Aug 29, 89[C01G]
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