LITOVITZ, THEODORE A.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B09B DISPOSAL OF SOLID WASTE 110

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5430236 Method for vitrifying ashAug 13, 93Jul 04, 95[B09B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4876232 Supported heteropolycyclic compounds in the separation and removal of late transition metalsExpiredSep 28, 87Oct 24, 89[B01J, C01G, C02F]
4737316 Purification of contaminated liquidExpiredMay 20, 86Apr 12, 88[G21F]
4687581 Method of separating and purifying cations by ion exchange with regenerable porous glassExpiredJan 30, 84Aug 18, 87[C02F]
4659477 Fixation of anionic materials with a complexing agentExpiredJul 28, 83Apr 21, 87[G21F, B01J, B01D]
4659512 Fixation of dissolved metal species with a complexing agentExpiredDec 21, 83Apr 21, 87[G21F, B01J, C01G, C02F]
4648975 Process of using improved silica-based chromatographic supports containing additivesExpiredFeb 27, 86Mar 10, 87[B01D]
4591455 Purification of contaminated liquidExpiredNov 24, 82May 27, 86[G21F]
4552577 Method of producing shaped foamed-glass articlesExpiredApr 05, 83Nov 12, 85[C03B]
4544499 Fixation by anion exchange of toxic materials in a glass matrixExpiredJun 07, 82Oct 01, 85[G21F]
4528011 Immobilization of radwastes in glass containers and products formed therebyExpiredDec 14, 81Jul 09, 85[C01C]
4469628 Fixation by ion exchange of toxic materials in a glass matrixExpiredApr 21, 82Sep 04, 84[C09K]
4443700 Optical sensing apparatus and methodExpiredMay 13, 82Apr 17, 84[G02B]
4362659 Fixation of radioactive materials in a glass matrixExpiredSep 17, 79Dec 07, 82[G21F]
4362542 Method of producing a strong optical fiberExpiredNov 02, 81Dec 07, 82[C03C, C03B]
4342907 Optical sensing apparatus and methodExpiredFeb 01, 80Aug 03, 82[G02B]
4332031 Silica removal process and alumina composition used thereinExpiredMar 21, 80May 25, 82[B01J, G21C]
4312774 Immobilization of radwastes in glass containers and products formed therebyExpiredApr 30, 79Jan 26, 82[G21F]
4244721 Method of making composite borosilicate glass articlesExpiredJan 31, 79Jan 13, 81[C03C]
4224177 Fixation of radioactive materials in a glass matrixExpiredMar 09, 78Sep 23, 80[G21F]

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