ALCOA SEPARATIONS TECHNOLOGY, INC. A CORPORATION OF DE

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
RE31687 Method of stripping solid particlesMar 02, 82Sep 25, 84[B01J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4536287 Piping for use in liquid collection and distributionExpiredApr 18, 84Aug 20, 85[B01D]
4427639 Ion exchange processExpiredMar 09, 81Jan 24, 84[C01G]
4371506 Ammoniacal elution of copper from ion exchange resinsExpiredJun 18, 81Feb 01, 83[C01G]
4279755 Continuous countercurrent ion exchange processExpiredFeb 26, 80Jul 21, 81[B01D]
4267057 Water treatment for selective removal of nitratesExpiredJan 18, 80May 12, 81[C02F]

Top Inventors for This Owner

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