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
Subclass 1/08: General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering (furnaces in general F27; electric heating H05B) Surface hardening with flames
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11565294 | Heating system for drill steel pipe billet and heating method thereof | Mar 26, 21 | Jan 31, 23 | Yanshan University |
| 11466340 | Steel sheet temperature control device and temperature control method | Nov 02, 16 | Oct 11, 22 | JFE Steel Corporation |
| 10961598 | Apparatus for microtreatment of iron-based alloy | Jan 07, 19 | Mar 30, 21 | Not available |
| 10514031 | Packaging bore for eliminating washout failure | Nov 22, 17 | Dec 24, 19 | American Manufacturing Innovators, Inc. |
| 10195759 | Tie strap with hardened integrated rivet for a saw chain | Jan 04, 16 | Feb 05, 19 | Blount Inc. |
| 10174390 | Microtreatment of iron-based alloy, apparatus and method therefor, and articles resulting therefrom | Oct 03, 07 | Jan 08, 19 | Not available |
| 10131117 | Fabrication process of coated stamped parts | Feb 01, 10 | Nov 20, 18 | ARCELORMITTAL INVESTIGACION Y DESARROLLO, S.L. |
| 9359652 | Thermal treatment method for micromechanical horological parts | Oct 23, 12 | Jun 07, 16 | Nivarox-FAR S.A. |
| 7625455 | Method of heat treatment of stainless steel | Feb 17, 03 | Dec 01, 09 | LINDE AKTIENGESELLSCHAFT |
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