Exfluor Research Corporation

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 17121
 
  
 
C07B GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR 512

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5753776 Liquid-phase fluorinationJun 06, 95May 19, 98[C07C, C07B]
5674949 Liquid-phase fluorinationJun 06, 95Oct 07, 97[C07C, C07B]
5571870 Liquid phase fluorinationMay 10, 94Nov 05, 96[C07C, C07B]
5557012 Fluorination of acetals, ketals and orthoestersJun 05, 95Sep 17, 96[C07C]
5543567 Fluorination of acetals, ketals and orthoestersJun 05, 95Aug 06, 96[C07C]
5539059 Perfluorinated polyethersJun 06, 95Jul 23, 96[C07C]
5523496 Fluorination of acetals, ketals and orthoestersApr 05, 94Jun 04, 96[C07C]
5506309 Perfluorinates polyethersJun 06, 95Apr 09, 96[C07C]
5461117 Liquid phase fluorinationJun 13, 94Oct 24, 95[C07C]
5455373 Method of producing perfluorocarbon halidesFeb 28, 94Oct 03, 95[C07C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2006/0287,540 Method for preparing perfluorocarbon-substituted methanolsAbandonedAug 24, 06Dec 21, 06[C07D, C07C]
2006/0079,701 Method for preparing perfluorocarbon-substituted methanolsAbandonedNov 29, 05Apr 13, 06[C07C]
2003/0130,547 Method for preparing perfluorocarbon-substituted methanolsAbandonedOct 21, 02Jul 10, 03[C07C]
6479712 Method for preparing perfluorocarbon-substituted methanolsExpiredJul 13, 99Nov 12, 02[C07C]
5446209 Spherical perfluoroethersExpiredOct 25, 93Aug 29, 95[C07C]
5202501 PerfluoropolyethersExpiredAug 27, 91Apr 13, 93[C07C]
5198139 Use of chlorofluoropolymers as lubricants for refrigerantsExpiredJun 24, 91Mar 30, 93[C09K, C10M]
5132455 Method for synthesizing perfluorinated ether compounds via polyestersExpiredJan 16, 91Jul 21, 92[C07C]
5093432 Liquid phase fluorinationExpiredSep 28, 89Mar 03, 92[C07C, C07B]
5075509 Fluorination of orthocarbonates and polyalkoxy propanesExpiredJul 28, 89Dec 24, 91[C07C]
5053536 Fluorination of acetals, ketals and orthoestersExpiredSep 28, 89Oct 01, 91[C07C]
5032302 Perfluoropolyether solid fillers for lubricantsExpiredMay 09, 90Jul 16, 91[C10M]
5025093 Pyrolysis of perfluoropolyethersExpiredJan 05, 90Jun 18, 91[C07C]
4931199 Use of chlorofluoropolyethers as lubricants for refrigerantsExpiredMay 23, 89Jun 05, 90[C09K, C10M]
4925583 Perfluoropolyether solid fillers for lubricantsExpiredFeb 06, 89May 15, 90[C10M]
4894484 Pyrolysis of perfluoropolyethersExpiredSep 03, 87Jan 16, 90[C07C]
4859747 Perfluorination of ethers in the presence of hydrogen fluoride scavengersExpiredMay 24, 88Aug 22, 89[C08G, C07C]
4827042 PerfluoropolyethersExpiredSep 02, 87May 02, 89[C07C]
4803005 Perfluoropolyether solid fillers for lubricantsExpiredAug 06, 86Feb 07, 89[C10M]
4760198 1:1 copolymer of difluoromethylene oxide and tetrafluoroethylene oxide and synthesisExpiredNov 08, 85Jul 26, 88[C08G, C07C]

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