Gautschi Electro-fours S.A.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F24H FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL 126
 
  
 
F27D DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE 124

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6250917 Regenerator/burner system for heating a fuel-fired industrial furnaceNov 17, 98Jun 26, 01[F27D]
5876197 Method for heating a fuel-fired industrial furnace and regenerator/burner system thereforMar 19, 97Mar 02, 99[F24H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5449422 Method and device for the heat treatment of heat treatable material in an industrial furnaceExpiredDec 17, 93Sep 12, 95[F27B, C22F]
5301929 Conveying device for push-type or continuous-heating furnacesExpiredNov 19, 92Apr 12, 94[F27D]
5032177 Method and apparatus for the removal of slag from metallic melt bath in a melting furnaceExpiredJul 19, 90Jul 16, 91[C22B]
4572485 Apparatus for melting a melting stock composed of scrap metal and/or coarse scrap materialExpiredAug 22, 84Feb 25, 86[F27D]
4235591 Continuous flow ovenExpiredMay 22, 78Nov 25, 80[F27B]

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