Trefimetaux

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B21B ROLLING OF METAL 131
 
  
 
B21C MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL120
 
  
 
B23H WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL 120
 
  
 
B65H HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES178
 
  
 
C22B PRODUCTION OR REFINING OF METALS 127
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 1100
 
  
 
C25D PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING 150
 
  
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 151

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6293993 Method for recycling brass foundry wasteDec 08, 99Sep 25, 01[C22B]
6045023 Yarn multiple supply device for a machineMar 03, 98Apr 04, 00[B65H, B23H]
5692560 Grooved tubes for heat exchangers in air conditioning equipment and refrigerating equipment, and corresponding exchangersJan 05, 96Dec 02, 97[F28F]
5674373 Method for metallizing non-conductive substratesApr 12, 96Oct 07, 97[C23C, C25D]
5660071 Automatic drawing deviceMar 20, 96Aug 26, 97[B21C]
5526663 Devices for the grooving of tubesJul 14, 94Jun 18, 96[B21B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7048043 Reversible grooved tubes for heat exchangersExpiredApr 12, 02May 23, 06[F28F]
6155611 Removable tube connectors gas tight at high temperatures, tube connection process and usageExpiredDec 15, 98Dec 05, 00[F16L]
5196074 Copper alloys capable of spinodal decomposition and a method of obtaining such alloysExpiredMay 06, 91Mar 23, 93[B22F]
5026434 Copper-iron-cobalt-titanium alloy with high mechanical and electrical characteristics and its production processExpiredJun 25, 90Jun 25, 91[C22F, C22C]
4752333 Alloys having high electrical and mechanical characteristics, the production thereof and the uses thereof in particular in the electrical, electronic and connection artsExpiredJan 09, 87Jun 21, 88[C22C]
4343169 Process for continuous hydrostatic extrusion of metals thereforExpiredOct 01, 79Aug 10, 82[B21C]
4294629 Drawn rods made of lead brass and a process for the thermal treatment thereofExpiredOct 02, 79Oct 13, 81[C22F]
4275261 End piece for high voltage cablesExpiredJan 03, 79Jun 23, 81[H02G]

Top Inventors for This Owner

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