Her Majesty the Queen in right of Canada, as represented by the Minister of Energy, Mines and Resources
Patent Owner
Stats
- 4 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Oct 15, 1996 most recent publication
Details
- 4 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 687 Total Citation Count
- Oct 24, 1978 Earliest Filing
- 40 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
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Recent Publications
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Recent Patents
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5463158 Oligomerization of low molecular weight olefins in ambient temperature meltsExpiredMar 07, 94Oct 31, 95[C07C]
5457252 Catalyst composition for the selective hydrogenation of benzene and process for such hydrogenationExpiredSep 02, 93Oct 10, 95[C07C]
5427607 Process for the recovery of metallic iron from slags and other residuesExpiredNov 07, 94Jun 27, 95[C21D]
5304233 Recovery of platinum group metals (PGM) from acidic solutions by reduction precipitation with sodium borohydrideExpiredJan 30, 91Apr 19, 94[C22B]
5286451 Apparatus for controlled delivery of particulate materialExpiredMay 21, 93Feb 15, 94[G01N, B01L, B65G]
5261945 Selective recovery of gold and silver from carbonate eluatesExpiredJul 22, 92Nov 16, 93[C22B]
5254763 Catalyst and process for the selective hydrogenation of benzeneExpiredDec 02, 91Oct 19, 93[C07C]
5232286 Long lasting thermocouple for high temperature measurements of liquid metals, mattes and slagsExpiredApr 10, 91Aug 03, 93[G01K, H01L]
5223023 Recovery of gold from solution by reduction-precipitation with stabilized alkali metal borohydrideExpiredJan 30, 91Jun 29, 93[C22B]
5178665 Recovery of dissolved gold by sodium borohydride (NaBH.sub.4) reductionExpiredJan 30, 91Jan 12, 93[C22B]
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