KT HOLDINGS, LLC

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Patent Activity in the Last 10 Years

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6365072 Polymer optical fibers and process for manufacturing thereofExpiredMar 19, 99Apr 02, 02[B29D]
6294293 Polymer electrical storage deviceExpiredJun 03, 97Sep 25, 01[H01M]
6277450 Method and composition for preventing corrosionExpiredJan 22, 99Aug 21, 01[C08J, C08F]
6242041 Method and composition for modifying the surface of an objectExpiredNov 10, 98Jun 05, 01[B05D, A61L]
6200503 Graded index polymer optical fibers and process for manufacture thereofExpiredMar 09, 99Mar 13, 01[B29D]
6184030 Biologically-active polymersExpiredFeb 13, 98Feb 06, 01[C12M, G01N]
6146556 Polymer additives for forming objectsExpiredApr 29, 98Nov 14, 00[C09K]
5969209 Process and composition for soil remediationExpiredOct 13, 98Oct 19, 99[C09K, G21F, A62D]
5932299 Method for modifying the surface of an objectExpiredApr 22, 97Aug 03, 99[C08F]
5883164 Polymer additives for forming objectsExpiredJul 03, 96Mar 16, 99[C08K]
5872168 Polymer additives for forming objectsExpiredNov 20, 96Feb 16, 99[C08K]
5861129 Polymer optical fibers and process for manufacture thereofExpiredJan 31, 96Jan 19, 99[B32B]
5834540 Process and composition for soil remediationExpiredOct 01, 96Nov 10, 98[C08K]

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