B23K 2103/04
Steel or steel alloys
Official title: Steel {or steel} alloys
B23K2103/04 (Steel or steel alloys) appears on 2,224 US grants and 3,021 published applications in this corpus.
Search patents in B23K- Granted patents
- 2,224
- Published applications
- 3,021
- Assignees
- 1,260
- Inventors
- 6,168
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 9 | 0 |
| 1986 | 3 | 0 |
| 1987 | 12 | 0 |
| 1988 | 8 | 0 |
| 1989 | 14 | 0 |
| 1990 | 8 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 10 | 0 |
| 1994 | 12 | 0 |
| 1995 | 16 | 0 |
| 1996 | 15 | 0 |
| 1997 | 21 | 0 |
| 1998 | 28 | 0 |
| 1999 | 29 | 0 |
| 2000 | 20 | 0 |
| 2001 | 26 | 15 |
| 2002 | 33 | 37 |
| 2003 | 40 | 38 |
| 2004 | 33 | 36 |
| 2005 | 23 | 41 |
| 2006 | 12 | 44 |
| 2007 | 16 | 30 |
| 2008 | 15 | 61 |
| 2009 | 14 | 67 |
| 2010 | 21 | 81 |
| 2011 | 24 | 80 |
| 2012 | 45 | 91 |
| 2013 | 43 | 91 |
| 2014 | 62 | 112 |
| 2015 | 86 | 162 |
| 2016 | 72 | 215 |
| 2017 | 112 | 226 |
| 2018 | 125 | 190 |
| 2019 | 156 | 221 |
| 2020 | 227 | 218 |
| 2021 | 138 | 218 |
| 2022 | 155 | 193 |
| 2023 | 143 | 167 |
| 2024 | 143 | 173 |
| 2025 | 139 | 99 |
| 2026 | 82 | 115 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Solid-state joining method, solid-state joined joint, solid-state joined structure, and solid-state joining device29 Sep 2026US 12,746,616 B2Osaka University
- Methods and apparatus for additively manufactured endoskeleton-based transport structures29 Sep 2026US 12,746,706 B2Divergent Technologies, Inc.
- Removing mill scale from a tubular22 Sep 2026US 12,741,336 B2Saudi Arabian Oil Company
- Weld structure, stainless steel welded structure, stainless steel welded container and stainless steel22 Sep 2026US 12,741,344 B2Nippon Steel Stainless Steel Corporation
- Gas cutting method for cutting steel material and steel material producing method8 Sep 2026US 12,728,472 B2Jfe Steel Corporation
- Seam position detection method, manufacturing method of welded steel pipe, quality control method of welded steel pipe, seam position detection apparatus, and manufacturing equipment of welded steel pipe8 Oct 2026US 2026/0307128 A1Jfe Steel Corporation
- Grain-oriented electrical steel sheet and method for manufacturing same8 Oct 2026US 2026/0307173 A1Nippon Steel Corporation
- Arc welded joint and method for manufacturing the same1 Oct 2026US 2026/0295705 A1Jfe Steel Corporation
- Manufacturing method of flash butt welded rail1 Oct 2026US 2026/0295710 A1Nippon Steel Corporation
- Friction stir welded joint1 Oct 2026US 2026/0295715 A1Jfe Steel Corporation
Most cited
By later US patents
- Rotary drive shaft assemblies for surgical instruments with articulatable end effectors1,997US 8,747,238 B2Ethicon Endo-Surgery, Inc. · 2014
- Forming structures from CAD solid models580US 6,391,251 B1Optomec Design Company · 2002
- Method and apparatus for direct laser cutting of metal stents552US 5,780,807 AAdvanced Cardiovascular Systems, Inc. · 1998
- Porous stent drug delivery system529US 5,972,027 ASciMed Life Systems, Inc. · 1999
- Ultrashort pulse high repetition rate laser system for biological tissue processing480US 5,720,894 AThe Regents of the University of California · 1998