| Patents for C23C 8 - Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals (10,951) |
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| 01/22/1985 | US4495006 Multistage without intermediate cooling |
| 01/22/1985 | US4495004 Preheating the charge and transferring to an in situ-combustion chamber |
| 01/22/1985 | US4495003 Manufacturing a steel tube including tufftriding |
| 01/08/1985 | US4492604 Addition of selenium or selenium containing compounds |
| 12/27/1984 | EP0129490A1 Method and device for the production of a uniform plasma having a large volume, a high density and a low electron temperature |
| 12/25/1984 | US4490190 Process for thermochemical treatments of metals by ionic bombardment |
| 12/06/1984 | WO1984004761A1 Method and apparatus for introducing normally solid materials into substrate surfaces |
| 11/27/1984 | US4484954 Halogenation treatment |
| 11/21/1984 | EP0125931A1 Front end elements for a colour cathode ray tube |
| 11/20/1984 | US4483720 Selective oxidation of alloy-one component undergoes oxidation, otther does not |
| 11/13/1984 | US4482399 Nitrided cast iron product and method for manufacturing the same |
| 11/08/1984 | WO1984004335A1 Process for applying thermal barrier coatings to metals and resulting product |
| 11/06/1984 | US4481264 Nitriding pretreatment |
| 10/30/1984 | CA1176920A1 Enhanced oxide whisker growth on cold-rolled aluminum- containing stainless steel foil |
| 10/24/1984 | EP0122762A1 Corrosion resistant steel components and method of manufacture thereof |
| 10/23/1984 | US4478651 Protective film on Cu-Sn alloys |
| 10/23/1984 | US4478648 Controlling oxidation potential to produce low valence titanium oxide |
| 10/23/1984 | CA1176547A1 Process for carburizing steel |
| 10/23/1984 | CA1176509A1 Method of blackening steel components, in particular for cathode ray tubes |
| 10/09/1984 | US4476373 Control system and method of controlling ion nitriding apparatus |
| 10/09/1984 | US4475958 Post-oxidation |
| 10/09/1984 | US4475842 Corrosion resistant shaft and boss clamping device |
| 10/03/1984 | EP0120632A1 Improved oxide bond for aluminum oxide coated cutting tools |
| 10/02/1984 | CA1175309A1 Method of providing a metal component with a thermally black surface |
| 09/18/1984 | US4472223 Method of forming glass seal |
| 09/18/1984 | US4472209 Case hardening metals, nitrogen, hydrocarbon fulsation |
| 09/18/1984 | CA1174461A1 Method for removing carbonaceous deposits from heat treating furnaces |
| 09/11/1984 | US4470854 Surface hardening thermal treatment |
| 08/29/1984 | EP0116888A1 Process for treating surfaces of finished parts, especially of tubes and range spacers, made from zirconium alloys for nuclear reactor fuel elements |
| 08/21/1984 | US4466991 Cutting tool hardening method |
| 08/14/1984 | US4465524 Ion bombardment to make surface wear resistant |
| 08/07/1984 | US4464207 Dispersion strengthened ferritic stainless steel |
| 07/31/1984 | US4463062 Oxidizing refractory carbide to form oxide, reducing, and protective coating |
| 07/24/1984 | US4461656 Nitrocarburizing |
| 07/24/1984 | US4461655 Fused salt bath composition |
| 07/18/1984 | EP0113474A2 Regenerator for carburizing salt baths and process for making it |
| 07/17/1984 | US4460415 Ions currents, biasing |
| 07/11/1984 | EP0112989A1 Copper texturing process |
| 07/10/1984 | US4458724 Solid solutions |
| 06/19/1984 | US4455177 Method and apparatus for chemical heat treatment of steel parts utilizing a continuous electric furnace |
| 06/05/1984 | US4452679 Substrate with chemically modified surface and method of manufacture thereof |
| 05/15/1984 | US4448612 Method of blackening surfaces of steel parts with wet nitrogen |
| 05/09/1984 | EP0108030A1 Method of forming glass seal |
| 05/08/1984 | US4447473 Forming thin metal film on glazed or baked surface, then high temperature oxidation |
| 05/08/1984 | US4447263 Cermet substrate with surface layer of carbo-nitride of a group 4,5, or 6 metal including titanium |
| 05/08/1984 | CA1166938A1 Method of producing pressure tubes |
| 05/01/1984 | US4445945 Carbon monoxide, hydrogen, nitrogen from methanol |
| 04/18/1984 | EP0105835A1 Method of producing a hard layer on articles of Ti or Ti-alloys |
| 04/18/1984 | EP0105540A1 Method for producing steel parts for a rolling bearing |
| 04/17/1984 | US4443274 Process for forming a protective film on Cu-Sn alloys |
| 04/17/1984 | US4442676 Adsorption, filters, alumina |
| 04/11/1984 | EP0105138A1 High efficiency reduction carburization and sintering method |
| 04/11/1984 | EP0105137A1 Corrosion-resistant and wear-resistant amorphous alloy and a method for preparing the same |
| 04/10/1984 | US4441933 Method of making products of aluminium alloy suitable for drawing |
| 04/04/1984 | EP0104319A2 Writing nib for an ink pen and process for its manufacture |
| 03/27/1984 | US4439248 Method of heat treating NICRALY alloys for use as ceramic kiln and furnace hardware |
| 03/20/1984 | US4438368 Plasma treating apparatus |
| 03/14/1984 | EP0102885A2 Process for the surface halogenation of polymeric or metallic materials |
| 03/14/1984 | EP0102881A1 Magnetic iron carbon nitride based material, and preparation and application as magnetic recording material |
| 03/13/1984 | US4436560 Process for manufacturing boride dispersion copper alloys |
| 03/13/1984 | US4436559 Process for manufacturing boride dispersion copper alloys |
| 03/13/1984 | US4436289 Method and apparatus for controlling the atmosphere in a carburizing furnace utilizing a cascaded valving system |
| 03/07/1984 | EP0101936A2 Boride-dispersed alloy material and process for manufacturing same |
| 02/28/1984 | US4434189 Method and apparatus for coating substrates using a laser |
| 02/21/1984 | US4433006 Process for oxidizing semiconducting compounds, especially gallium arsenide |
| 02/07/1984 | US4430055 Semi-continuous vacuum heat-treating furnace, and its operation process |
| 01/31/1984 | US4429011 Molybdenum covered by molybdenum nitride |
| 01/24/1984 | US4427461 Nitridation and brazing of assemblies with titanium-containing iron based alloys |
| 01/18/1984 | EP0098453A1 Method for the production of hard, wear-resistant external coats on a metallic material |
| 01/10/1984 | US4425383 Steels, air, water |
| 01/03/1984 | US4424077 Tin, lead, titanium dioxide |
| 12/21/1983 | EP0096602A1 Method of heat treating metallic parts by carburization |
| 12/13/1983 | US4420330 Passivation |
| 12/06/1983 | US4419144 Spall-resistant steel tubing or other steel articles subjected to high temperature steam and method |
| 11/29/1983 | US4417927 Steel nitriding method and apparatus |
| 11/24/1983 | WO1983004055A1 Method for chemical heat treatment of parts made of steels and alloys |
| 11/22/1983 | US4416725 Copper texturing process |
| 11/16/1983 | EP0094328A1 Process for manufacturing aluminium alloy products with adequate drawing properties |
| 11/15/1983 | US4415378 Carburized surface of untempered martensite and austenite |
| 11/08/1983 | US4414040 Passivation of mercury cadmium telluride semiconductor surfaces by ozone oxidation |
| 11/01/1983 | US4413302 Structural member made from a metallic material having an upper surface exposed to the danger of electric charge building-up thereon and the use of such structural member |
| 10/11/1983 | US4409260 Process for low-temperature surface layer oxidation of a semiconductor substrate |
| 10/04/1983 | US4407515 Combined oil ring |
| 09/28/1983 | EP0089885A2 Method of surface-hardening metallic parts |
| 09/28/1983 | EP0089583A1 Method for the production of solar selective layers |
| 09/27/1983 | US4406714 Heat treatment of metals |
| 09/20/1983 | US4405670 Capacitance electronic disc stamper having improved stain resistance and method for the manufacture thereof |
| 09/14/1983 | EP0088526A1 Fused salt bath composition |
| 09/13/1983 | US4404045 Surface-boronized pieces |
| 08/30/1983 | US4401480 Method of selective grain growth in nickel-base superalloys by controlled boron diffusion |
| 08/30/1983 | US4401479 Apparatus and method for processing wire stand cable for use in prestressed concrete structures |
| 08/23/1983 | US4400224 Using a molten boric acid or borate and carbiding element as treatment bath |
| 08/16/1983 | US4398968 Method of boronizing transition metal surfaces |
| 08/02/1983 | US4396478 Method of control of chemico-thermal treatment of workpieces in glow discharge and a device for carrying out the method |
| 07/26/1983 | US4395025 Method and apparatus for the continuous furnace brazing and gas soft-nitriding treatments of iron articles |
| 07/19/1983 | US4394234 Method of processing electrically conductive material by glow discharge |
| 07/05/1983 | US4391654 Method of thermo-chemical treatment of cutting tools and plastic working tools |
| 07/05/1983 | CA1149243A1 Application of an alumina coating to oxide whisker- covered surface on a1-containing stainless steel foil |
| 07/05/1983 | CA1149199A1 Method of heat treating high carbon alloy steel parts to develop surface compressive residual stresses |
| 06/21/1983 | US4389560 Lasers |