F27D 3/1527
Taphole forming equipment
Official title: {Taphole forming equipment, e.g. boring machines, piercing tools}
F27D3/1527 (Taphole forming equipment) appears on 42 US grants and 28 published applications in this corpus.
Search patents in F27D- Granted patents
- 42
- Published applications
- 28
- Assignees
- 30
- Inventors
- 107
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 2 |
| 2002 | 0 | 0 |
| 2003 | 2 | 2 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 2 |
| 2009 | 2 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 4 |
| 2017 | 2 | 0 |
| 2018 | 3 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 3 |
| 2021 | 2 | 0 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Oxygen lance guiding assembly7 Apr 2026US 12,595,964 B2Tmt Tapping-Measuring-Technology Sarl
- Manipulator arm, and manipulator comprising a manipulator arm25 Nov 2025US 12,480,712 B2Tmt Tapping-Measuring-Technology Sarl
- Hole-opening bit and tap hole opening method using same21 Nov 2023US 11,821,048 B2Jfe Steel Corporation
- Lance with blowout preventer, oxygen flow reducer and improved ignition system12 Jul 2022US 11,384,404 B2
- Tip protrusions on lance ignition tube30 Nov 2021US 11,187,461 B2
- Delay Ignitor Cap, Blowback Ignitor Cap, and Combination Ignitor Cap for a Thermal Lance and Thermal Lances Including Such Ignitor Caps6 Mar 2025US 2025/0075279 A1Reuning-McKim, Inc.
- Manipulator arm, and manipulator comprising a manipulator arm13 Feb 2025US 2025/0052499 A1Tmt Tapping-Measuring-Technology Sarl
- Oxygen lance guiding assembly4 Jul 2024US 2024/0219121 A1Tmt Tapping-Measuring-Technology Sarl
- Device and method for maintaining efficient a tapping channel of a furnace for the production of metal5 Oct 2023US 2023/0314078 A1More S.R.L.
- Hole-opening bit and tap hole opening method using same26 May 2022US 2022/0162717 A1Jfe Steel Corporation
Most cited
By later US patents
- Apparatus for automatically cleaning smelt spouts of a chemical recovery furnace92US 5,542,650 AAnthony-Ross Company · 1996
- Method and apparatus for opening discharge outlets14US 5,783,140 AChampion International Corporation · 1998
- Automatic tapping machine9US 4,037,828 ANippon Carbide Kogyo Kabushiki Kaisha · 1977
- Method for opening discharge outlets9US 5,635,095 AChampion International Corporation · 1997
- Projection molten impeller for concave section used in apparatus8US 5,259,880 AKurosaki Refractories Co., Ltd. · 1993