LAKEFIELD RESEARCH LIMITED
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Jul 04, 2002 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 61 Total Citation Count
- May 02, 1988 Earliest Filing
- 7 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
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Recent Publications
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Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
2002/0083,795 Purification of zinc bearing material solutions containing manganeseAbandonedOct 09, 01Jul 04, 02[C22B]
5238579 Method for generating coarse precipitates from solutions or slurries containing ionic speciesExpiredNov 30, 92Aug 24, 93[C02F]
5049612 Depressant for flotation separation of polymetallic sulphidic oresExpiredJan 03, 89Sep 17, 91[B03D, C08B]
4877517 Depressant for flotation separation of polymetallic sulphidic oresExpiredMay 02, 88Oct 31, 89[B03D]
Top Inventors for This Owner
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