HOECHST RESEARCH & TECHNOLOGY DEUTSCHLAND GMBH & CO. KG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 2136
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1119
 
  
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 1153

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6670504 Method and producing acetic acid in a reactor cascadeNov 10, 99Dec 30, 03[C07C, B01J]
6274765 Process and catalyst for preparing acetic acid by catalytic oxidation of ethaneNov 10, 99Aug 14, 01[C07C]
6159640 Electrolyte system for lithium batteries and use of said system, and method for increasing the safety of lithium batteriesJun 12, 98Dec 12, 00[H01M]
6107447 Cholesteric phase-forming polymers, process for their preparation and their useJun 16, 98Aug 22, 00[C08G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6437174 Method for producing 2-fluoro-isobutyric acid estersExpiredMar 29, 99Aug 20, 02[C07C]
6415993 Device for the mixing and subsequent atomizing of liquidsExpiredJun 27, 00Jul 09, 02[B05B]
6372687 Supported catalysts having a high sintering stability and a process for producing themExpiredOct 15, 98Apr 16, 02[B01J]
6274749 High-temperature resistant sulfonated aromatic polyether ketone cation exchangers and sulfonated poly (phenylene sulfide) cation exchangers as catalysts at reaction temperature above 150.degree. CExpiredJul 23, 98Aug 14, 01[C07C, B01J]
6225508 Method for producing alkanals using a rhodium-tri-polyethylene glycolateExpiredFeb 15, 00May 01, 01[C07C]
6171519 Ferroelectric liquid crystal mixtureExpiredJun 29, 98Jan 09, 01[C09K, G02F]
6129958 Chiral smectic liquid crystal mixture containing 1,2-difluoronaphthalenesExpiredOct 26, 98Oct 10, 00[C09K]
6048460 Biological method of treating sewage containing high concentrations of sludgeExpiredJun 08, 98Apr 11, 00[C02F]
6022492 Difluorophenyl pyrimidyl pyridine derivatives and the use thereof in liquid crystal mixturesExpiredJan 14, 99Feb 08, 00[C09K, C07D]
6022986 Manganiferous polyoxometallates, synthesis and use thereofExpiredApr 23, 98Feb 08, 00[C07F]

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