HOUGHTON TECHNICAL CORP.

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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 441
 
  
 
C11D DETERGENT COMPOSITIONS 362
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 253
 
  
 
C03C CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS258
 
  
 
C10M LUBRICATING COMPOSITIONS 247
 
  
 
C23F NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES 234
 
  
 
C23G CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS 211
 
  
 
C25D PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING 249
 
  
 
C25F PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR 216
 
  
 
A01N PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF 194

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9803255 Aqueous quenching media and use thereof in quenching metal substratesMay 13, 14Oct 31, 17[C21D]
9732428 Methods and compositions for acid treatment of a metal surfaceMar 22, 15Aug 15, 17[C25D, C03C, C23G, C23F, C11D, B44C, C25F]
9475116 Methods for die casting metals using phase separable fluidsMar 23, 12Oct 25, 16[B22D, B22C]
8764914 Aqueous quenching media and use thereof in quenching metal substratesDec 30, 10Jul 01, 14[C21D]
8518286 Methods and compositons for acid treatment of a metal surfaceAug 02, 12Aug 27, 13[C03C, C23F, C25F]
8460553 Recovery by vapor recompression of industrial process fluid componentsJun 24, 08Jun 11, 13[B01D]
8252195 Methods and compositions for acid treatment of a metal surfaceDec 17, 08Aug 28, 12[C25D, C23G]
7820068 Chemical assisted lapping and polishing of metalsFeb 20, 08Oct 26, 10[C09K]
6818609 Metal deformation compositions and uses thereofAug 21, 02Nov 16, 04[C11D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0322,576 Methods and Compositions for Acid Treatment of a Metal SurfaceAbandonedFeb 11, 15Nov 12, 15[C23F]
2013/0334,173 Methods and Compositions for Acid Treatment of a Metal SurfaceAbandonedAug 21, 13Dec 19, 13[C23F]
2012/0292,559 Methods and Compositions for Acid Treatment of a Metal SurfaceAbandonedAug 02, 12Nov 22, 12[C09K]
2009/0095,384 AQUEOUS QUENCHING MEDIA AND USE THEREOF IN QUENCHING METAL SUBSTRATESAbandonedOct 11, 07Apr 16, 09[C21D]
2009/0047,533 COMPOSITION AND METHOD FOR TREATING FIBROUS MATERIALSAbandonedFeb 20, 08Feb 19, 09[A01P, A01N, E04C, B32B]
2007/0066,503 Methods and compositions for acid treatment of a metal surfaceAbandonedAug 15, 06Mar 22, 07[C11D]
6521142 Fire-resistant hydraulic fluid compositionsExpiredAug 01, 00Feb 18, 03[C09K, C10M, H01B]
6156228 Trialkoxyalkylphosphate-based fire resistant fluid containing triglycerideExpiredNov 16, 94Dec 05, 00[C10M]
4528044 Aqueous quenchants containing polyoxazolines and n-vinyl heterocyclic polymers and their use in quenching steelExpiredOct 12, 84Jul 09, 85[C21D]
4486246 Polyoxazolines in aqueous quenchantsExpiredDec 16, 83Dec 04, 84[C21D]
4481125 Water-based hydraulic fluidExpiredJun 29, 83Nov 06, 84[C10M]
4404044 Method of quenchingExpiredSep 08, 81Sep 13, 83[B23K]
4381205 Metal quenching processExpiredApr 05, 82Apr 26, 83[C21D]
4209414 Dual-purpose hydraulic fluidExpiredFeb 26, 79Jun 24, 80[C09K, C10M]

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