WEYLCHEM LAMOTTE S.A.S.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 8130
 
  
 
C07D HETEROCYCLIC COMPOUNDS 2160
 
  
 
C05D INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE19
 
  
 
C07B GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR 116
 
  
 
C07F ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM, OR TELLURIUM 169

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9115058 Process of preparation of optically active αaminoacetalsJan 21, 09Aug 25, 15[C07C, C07B]
8846921 Method for producing 3,7-diaza-bicyclo[3.3.1]nonane metal complexesOct 06, 11Sep 30, 14[C07F]
8754255 Process of preparation of glyoxylic acid aqueous solutionJan 21, 09Jun 17, 14[C07C]
8609882 Process for deacetalisation of α aminoacetalsApr 02, 08Dec 17, 13[C07C]
8481783 Process of separation of glyoxylic acid from an aqueous reaction medium containing glyoxylic acid and hydrochloric acidJan 21, 09Jul 09, 13[C07C]
8399714 Process for the synthesis of polyhydroxystilbene compoundsSep 23, 08Mar 19, 13[C07C]
8372176 Metal complexes comprising a ligand derived from 2-aryl-2-hydroxyacetic acid and a divalent or trivalent metal cation, and their useMay 21, 07Feb 12, 13[C05D]
8350092 Process of racemisation of optically active alpha aminoacetalsMay 21, 08Jan 08, 13[C07C]
8101804 Process for the synthesis of (E)-stilbene derivatives which makes it possible to obtain resveratrol and piceatannolJul 25, 07Jan 24, 12[C07C]
RE39755 3-(1-hydroxy-pentylidene)-5-nitro-3H-benzofuran-2-one a process for the preparation thereof and the use thereofFeb 03, 05Jul 31, 07[C07D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8257832 Aminoplast or phenoplast resin based on at least one glyoxal monoacetal and on glyoxylic acid, and its usesExpiredMay 21, 07Sep 04, 12[B32B]
7544817 Process for the preparation of n-alkyl-2(hydroxy-4benzoyl)-3 benzofurans and intermediates thereofExpiredDec 15, 04Jun 09, 09[C07D]
7399529 Aminoplast resin compositionExpiredDec 15, 06Jul 15, 08[B32B]
7220883 Process for the preparation of primary aminesExpiredJul 28, 03May 22, 07[C07C]
7169881 Aminoplast resin compositionsExpiredOct 29, 04Jan 30, 07[C08G]
6825239 Silico-acrylic compositions: method for their preparation and useExpiredMar 30, 01Nov 30, 04[C09D, C08K]

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