| 2025/0075,279 | Delay Ignitor Cap, Blowback Ignitor Cap, and Combination Ignitor Cap for a Thermal Lance and Thermal Lances Including Such Ignitor Caps | Apr 25, 23 | Mar 06, 25 | Reuning-McKim, Inc. |
| 2024/0219,121 | OXYGEN LANCE GUIDING ASSEMBLY | May 06, 21 | Jul 04, 24 | Not available |
| 2022/0178,615 | TAPHOLE PLUGGING GUN | Mar 13, 19 | Jun 09, 22 | Not available |
| 2022/0162,717 | HOLE-OPENING BIT AND TAP HOLE OPENING METHOD USING SAME | Mar 10, 20 | May 26, 22 | JFE Steel Corporation |
| 2019/0345,574 | MUD GUN CAP | Apr 26, 19 | Nov 14, 19 | Not available |
| 2017/0342,513 | Method of Sealing and Repairing a Refractory Tap Hole | Dec 14, 15 | Nov 30, 17 | TECHNOLOGICAL RESOURCES PTY. LIMITED |
| 2017/0204,484 | APPARATUS FOR SHAVING TAP HOLE SURFACE OF BLAST FURNACE OR THE LIKE | Dec 25, 15 | Jul 20, 17 | TRYTEC CO., LTD. |
| 2012/0292,836 | Clay Gun Machine Cannon for Metallurgical Furnaces | Jan 12, 11 | Nov 22, 12 | TMT Tapping-Measuring-Technology GmbH |
| 2012/0001,372 | REFRACTORY CERAMIC PLUG | Feb 13, 10 | Jan 05, 12 | REFRACTORY INTELLECTUAL PROPERTY GMBH & CO. KG |
| 2011/0285,066 | BLAST FURNACE PLUG | May 20, 10 | Nov 24, 11 | J.K. Industries, Inc. |
| 2011/0241,268 | Method for Exchangeably Fastening a Refractory Purge Plug or Sleeve and a Container for Molten Metal | Nov 17, 09 | Oct 06, 11 | Stopinc Aktiengesellschaft |
| 2011/0227,262 | PIVOTING SLAG DOOR | Mar 16, 10 | Sep 22, 11 | PROCESS TECHNOLOGY INTERNATIONAL, PROCESS TECHNOLOGY INTERNATIONAL, LLC, |
| 2011/0174,804 | Method and Melt Channels for Interrupting and Restoring the Melt Stream of Iron and Metal Melts in Tap Hole Channels of Blast Furnaces and Drainage Channels of Melt Furnaces | Aug 06, 09 | Jul 21, 11 | TMT Tapping-Measuring-Technology GmbH |
| 2011/0174,457 | PROCESS FOR OPTIMIZING STEEL FABRICATION | Jan 18, 10 | Jul 21, 11 | EVRAZ INC. NA CANADA |
| 2011/0148,013 | Sealing Plug for Tiltable Converters | Aug 14, 09 | Jun 23, 11 | Not available |
| 2011/0011,209 | METHOD FOR PRODUCING MOLTEN IRON | Mar 24, 09 | Jan 20, 11 | KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) |
| 2010/0320,654 | TAP HOLE PLUG GUN | May 14, 10 | Dec 23, 10 | TMT Tapping-Measuring-Technology GmbH |
| 2010/0201,050 | SYSTEMS AND METHODS FOR ACCESSING A FURNACE MELT | Apr 23, 10 | Aug 12, 10 | PROCESS TECHNOLOGY INTERNATIONAL, PROCESS TECHNOLOGY INTERNATIONAL, LLC, |
| 2010/0019,421 | MUD GUN CAP | Jul 27, 09 | Jan 28, 10 | J.K. Industries, Inc. |
| 2009/0315,234 | SEALING APPARATUS FOR A SLAG DOOR OF A METALLURGICAL FURNANCE | Jun 20, 07 | Dec 24, 09 | Empco (Canada) Ltd. |