HW ADVANCED TECHNOLOGIES, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 2132
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154
 
  
 
C25C PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR 118

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5733431 Method for removing copper ions from copper ore using organic extractionsAug 21, 96Mar 31, 98[C25C]
5476591 Liquid treatment system and method for operating the sameMay 05, 94Dec 19, 95[B01D]
5310486 Multi-stage water treatment system and method for operating the sameMay 25, 93May 10, 94[B01D]
5116511 Water treatment system and method for operating the sameFeb 22, 91May 26, 92[C02F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0163,227 STIMULATION AND RECOVERY OF HEAVY HYDROCARBON FLUIDSAbandonedMar 11, 10Jul 01, 10[E21B]
7677673 Stimulation and recovery of heavy hydrocarbon fluidsExpiredMar 05, 07Mar 16, 10[E21B]
2008/0128,354 METHOD FOR WASHING FILTRATION MEMBRANESAbandonedNov 28, 07Jun 05, 08[B01D]
2008/0118,421 METHOD AND MEANS FOR USING MICROWAVE ENERGY TO OXIDIZE SULFIDIC COPPER ORE INTO A PRESCRIBED OXIDE-SULFATE PRODUCTAbandonedSep 20, 07May 22, 08[C22B]
2008/0069,723 METHOD FOR OXIDIZING CARBONACEOUS ORES TO FACILITATE PRECIOUS METAL RECOVERYAbandonedSep 20, 07Mar 20, 08[C22B]
2008/0069,746 METHOD AND APPARATUS FOR MICROWAVE INDUCED PYROLYSIS OF ARSENICAL ORES AND ORE CONCENTRATESAbandonedSep 20, 07Mar 20, 08[C01G]
2008/0069,748 MULTIVALENT IRON ION SEPARATION IN METAL RECOVERY CIRCUITSAbandonedSep 20, 07Mar 20, 08[C01G]
2007/0102,359 Treating produced watersAbandonedApr 27, 06May 10, 07[B01D]
6355175 Method for separating and isolating precious metals from non precious metals dissolved in solutionsExpiredMar 22, 00Mar 12, 02[B01D]
6165344 Method for removing copper ions from copper ore using organic extractantsExpiredMar 31, 98Dec 26, 00[C23C]
6156186 Method for removing contaminants from process streams in metal recovery processesExpiredOct 30, 98Dec 05, 00[C25C, C15G, B01D]
5961833 Method for separating and isolating gold from copper in a gold processing systemExpiredJun 09, 97Oct 05, 99[B01D]

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