Cato Research Corporation

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF178
 
  
 
C22B PRODUCTION OR REFINING OF METALS 127
 
  
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 1153

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7955749 Carbon-fueled fuel cellMar 02, 05Jun 07, 11[H01M]
7544227 Microwave enhancement of the segregation roastMay 10, 04Jun 09, 09[C22B]
7425315 Method to recapture energy from organic wasteApr 23, 04Sep 16, 08[C01B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5332560 Process for the removal of zinc and nickel from copper ammine sulfate solutionsExpiredMar 05, 93Jul 26, 94[C22B, C01G]
5173276 Method for recovery of copper from copper-containing materialsExpiredMay 30, 90Dec 22, 92[C22B, C01G]
4631176 Recovery of anhydrous zinc chlorideExpiredJul 22, 82Dec 23, 86[C01G]
4500498 Ammonium chloride-ammonium hydroxide strip for the recovery of anhydrous zinc chlorideExpiredJan 19, 84Feb 19, 85[C01G]
4209501 Chlorides of lead, zinz, copper, silver and goldExpiredJan 04, 79Jun 24, 80[C01G]

Top Inventors for This Owner

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