| 9926614 | Device for immobilizing the chute on the ends of journals in an apparatus for loading a shaft furnace | Jul 02, 15 | Mar 27, 18 | Paul Wurth SA |
| 9039342 | Crucible shuttle assembly and method of operation | Sep 12, 12 | May 26, 15 | LECO CORPORATION |
| 8512439 | Method for feeding a burden to a blast furnace | Apr 22, 10 | Aug 20, 13 | PAUL WURTH S.A. |
| 8021603 | Rotary charging device for a shaft furnace equipped with a cooling system | Oct 03, 06 | Sep 20, 11 | PAUL WURTH S.A. |
| 7687019 | Refining apparatus for scrap silicon using an electron beam | Jun 02, 05 | Mar 30, 10 | IIS Materials Corporation, Ltd. |
| 5938432 | Top closing device for shaft furnaces | Mar 04, 98 | Aug 17, 99 | SMS SIEMAG AKTIENGESELLSCHAFT |
| 5411242 | Charging device with member for regulating the flow rate | Mar 03, 94 | May 02, 95 | PAUL WURTH S.A. |
| 4949940 | Charging arrangement for shaft furnaces, in particular blast furnaces | Oct 12, 89 | Aug 21, 90 | KORTEC AG |
| 4941792 | Handling device for a distribution chute of a shaft furnace and drive mechanism suitable for this device | Jul 19, 89 | Jul 17, 90 | PAUL WURTH S.A. |
| 4881869 | Furnace charging throat construction | May 17, 88 | Nov 21, 89 | MAN GUTEHOFFNUNGSHUTTE AKTIENGESELLSCHAFT, SMS SIEMAG AKTIENGESELLSCHAFT, |
| 4878655 | Furnace charging throat construction | Sep 24, 87 | Nov 07, 89 | MAN GUTEHOFFNUNGSHUTTE AKTIENGESELLSCHAFT, SMS SIEMAG AKTIENGESELLSCHAFT, |
| 4377278 | Apparatus for equalizing pressure in shaft furnaces | May 04, 81 | Mar 22, 83 | Mannesmann AG |