| REG-1 Durferrit GmbH
73216727 23 May 1979 | on 26 Jan 2022
| Organic Chemical Additives for Metallurgical Process Molten Salt Baths... Class 001 Class 001 Chemical Products REG 1 | | | MEL-1 DURFERRIT GMBH
73216726 23 May 1979 | on 20 Jan 2022
| Salts Containing Caustic Cyanate for Molten Salt Baths Used for Nitrid... Class 001 Class 001 Chemical Products Salts Containing Caustic Cyanate for Molten Salt Baths Used for Nitriding Ferrous Metal Pieces | | | TUFFTRIDE DURFERRIT GMBH
72087692 21 Dec 1959 | on 08 May 2020
| SODIUM CYANIDE,SODIUM CYANIDE | | | MELONITE DURFERRIT GMBH
73083471 12 Apr 1976 | on 08 Oct 2017
| LIQUID HEAT TREATING EQUIPMENT, AND RELATED CONTROL, PARTICULARLY FOR ... Class 011 Class 011 Environmental Control Instrument Products (lighting,heating,cooling,cooking) LIQUID HEAT TREATING EQUIPMENT, AND RELATED CONTROL, PARTICULARLY FOR PROCESSES UTILIZING MOLTEN SALTS CONTAINING CAUSTIC CYANATE | | | AB 1 DURFERRIT GMBH
74705965 25 Jul 1995 | on 20 Apr 2017
| chemical products for industrial use, namely, compounds for the oxydiz... Class 001 Class 001 Chemical Products chemical products for industrial use, namely, compounds for the oxydizing cooling after nitriding of metals | | | DURBORID DURFERRIT GMBH
75040586 05 Jan 1996 | on 06 Dec 2016
| boron-releasing chemicals for the heat treatment of metals to gain wea... Class 001 Class 001 Chemical Products boron-releasing chemicals for the heat treatment of metals to gain wear resistant surfaces for tools, agricultural implements, machinery, and material handling equipment | | | MELONITE DURFERRIT GMBH
73083472 12 Apr 1976 | on 02 Dec 2016
| TREATING METALS BY PROCESSES UTILIZING MOLTEN SALTS CONTAINING CAUSTIC... Class 040 Class 040 Treatment & Processing of Materials Services TREATING METALS BY PROCESSES UTILIZING MOLTEN SALTS CONTAINING CAUSTIC CYANATE | | | DURFERRIT Durferrit GmbH
76581338 11 Mar 2004 | on 20 Aug 2015
| CHEMICAL PRODUCTS FOR INDUSTRIAL USE, NAMELY, CHEMICAL COMPOUNDS AND P... Class 001 Class 001 Chemical Products CHEMICAL PRODUCTS FOR INDUSTRIAL USE, NAMELY, CHEMICAL COMPOUNDS AND PRE AND POST TREATMENT CHEMICALS USED FOR HEAT TRANSFER, IN THE HEAT OR SURFACE TREATMENT, CLEANING AND DESCALING OF METALS SUCH AS IRON AND STEEL AND IN THE HEAT OR SURFACE TREATMENT OF LIGHTS METALS SUCH AS ALUMINUM, MAGNESIUM, AND THE ALLOYS, BRASS AND COPPER | | | TUFFTRIDE DURFERRIT GMBH
72097670 23 May 1960 | on 01 Apr 2016 | Treating Metals by a Process Using Molten Salts Containing Sodium Cyan... Class 106 Class 106 Material Treatment Treating Metals by a Process Using Molten Salts Containing Sodium Cyanide | | | DURFERRIT DURFERRIT GMBH
73234119 05 Oct 1979 | on 11 Mar 2016 | Industrial Heating Crucibles and Heat Treating Furnaces and Quenches,I... Class 011 Class 011 Environmental Control Instrument Products (lighting,heating,cooling,cooking) Industrial Heating Crucibles and Heat Treating Furnaces and Quenches | |