ETUDES ET CONSTRUCTIONS MECANIQUES

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C21D MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS 144
 
  
 
F26B DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM 129
 
  
 
F27B FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS123

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6451137 Method of quenching after a low-pressure carburizationNov 17, 00Sep 17, 02[C21D]
6216358 Gas-quenching cellMay 28, 99Apr 17, 01[F26B]
6065964 Modular vacuum thermal processing installationDec 02, 98May 23, 00[F27B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0084,011 Low Pressure Thermochemical Treatment MachineAbandonedAug 02, 05Apr 10, 08[C21D]
2006/0157,169 Gas quenching cell for steel partsAbandonedApr 19, 05Jul 20, 06[C21D]
6627145 Gas-heated carburizing equipmentExpiredJun 04, 01Sep 30, 03[C21B]
2002/0020,948 Gas hardening cellAbandonedJun 06, 01Feb 21, 02[C21D, C21B]
5033927 Device for carrying out sequential thermal treatments under a vacuumExpiredMar 16, 90Jul 23, 91[B65G]
5018551 Device for injecting gas under high pressure and high flow rate into an airtight treatment chamber and for recovery of the sameExpiredMar 16, 90May 28, 91[B65B]

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