ESPE STIFTUNG & CO.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A61C DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE 255
 
  
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 2123
 
  
 
A61F FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS 1139
 
  
 
C08J WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER- TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C C08F, C08G or C08H 177
 
  
 
C08K USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS 1101

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5583164 Dental compositions comprising bifunctional or polyfunctional acrylic-acid esters or methacrylic-acid estersMay 25, 95Dec 10, 96[A61F, C08F, A61C]
5472991 Two-stage photocuring process for a dental compositionJul 21, 94Dec 05, 95[C08J, C08F, A61C, C08K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5968998 Dental compositions comprising bifunctional or polyfunctional acrylic-acid esters or methacrylic-acid estersExpiredApr 16, 93Oct 19, 99[A61K]
5250585 Dental material in powder form, process for its preparation and useExpiredMar 21, 90Oct 05, 93[A61K, C08K]
5086148 Polyether-impression material and method for its preparation and useExpiredNov 14, 89Feb 04, 92[C08G]
5008303 Molding composition for making casting patternsExpiredJan 26, 90Apr 16, 91[C08F, B22C]
4978359 Prosthesis shaftExpiredApr 27, 89Dec 18, 90[A61F]
4867790 Dental composition containing an aziridine compound and method of preparationExpiredJan 27, 88Sep 19, 89[C08G, C08L]
4795823 (Meth)acrylic acid esters and the use thereof for preparing dental compositionsExpiredMar 02, 87Jan 03, 89[C07C]
4792632 Bisacylphosphine oxides, the preparation and use thereofExpiredNov 17, 87Dec 20, 88[C07F]
4737593 Bisacylphosphine oxides, the preparation and use thereofExpiredNov 25, 85Apr 12, 88[C07F]
4532268 Imidazole agent for retarding the polymerization of aziridine compoundsExpiredDec 01, 83Jul 30, 85[C08L]
4527979 Powdered dental material and process for the preparation thereofExpiredDec 21, 83Jul 09, 85[A61K]

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