SANI-TECH, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4980137 Process for NOx and CO controlExpiredApr 03, 89Dec 25, 90[C01B, C10K, B01J]
4829036 Regeneration process for spent SO.sub.2 -NO.sub.X sorbentsExpiredApr 21, 88May 09, 89[B01J, B01D]
4806320 Process for Nox controlExpiredApr 21, 88Feb 21, 89[C01B, B01J]
4786484 Process for absorbing toxic gasExpiredOct 07, 87Nov 22, 88[B01D]
4721582 Toxic gas absorbent and processes for making sameExpiredFeb 03, 87Jan 26, 88[C09K, B01J]
4711718 Ion-selective water filterExpiredJan 20, 87Dec 08, 87[B01D]

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