B21C
Manufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products
Official title: Manufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling; auxiliary operations used in connection with metal-working without essentially removing material
B21C (Manufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products) appears on 6,183 US grants and 4,749 published applications in this corpus.
Search patents in B21C- Granted patents
- 6,183
- Published applications
- 4,749
- Assignees
- 2,906
- Inventors
- 12,261
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 133 | 0 |
| 1977 | 151 | 0 |
| 1978 | 149 | 0 |
| 1979 | 96 | 0 |
| 1980 | 111 | 0 |
| 1981 | 110 | 0 |
| 1982 | 97 | 0 |
| 1983 | 80 | 0 |
| 1984 | 102 | 0 |
| 1985 | 86 | 0 |
| 1986 | 98 | 0 |
| 1987 | 71 | 0 |
| 1988 | 102 | 0 |
| 1989 | 93 | 0 |
| 1990 | 86 | 0 |
| 1991 | 94 | 0 |
| 1992 | 76 | 0 |
| 1993 | 80 | 0 |
| 1994 | 108 | 0 |
| 1995 | 87 | 0 |
| 1996 | 106 | 0 |
| 1997 | 117 | 0 |
| 1998 | 128 | 0 |
| 1999 | 158 | 0 |
| 2000 | 138 | 0 |
| 2001 | 155 | 53 |
| 2002 | 143 | 170 |
| 2003 | 132 | 161 |
| 2004 | 128 | 168 |
| 2005 | 108 | 177 |
| 2006 | 95 | 168 |
| 2007 | 100 | 150 |
| 2008 | 71 | 155 |
| 2009 | 74 | 169 |
| 2010 | 90 | 176 |
| 2011 | 81 | 162 |
| 2012 | 128 | 175 |
| 2013 | 119 | 204 |
| 2014 | 106 | 197 |
| 2015 | 161 | 244 |
| 2016 | 159 | 209 |
| 2017 | 183 | 234 |
| 2018 | 170 | 245 |
| 2019 | 206 | 241 |
| 2020 | 184 | 240 |
| 2021 | 175 | 228 |
| 2022 | 176 | 191 |
| 2023 | 178 | 197 |
| 2024 | 140 | 167 |
| 2025 | 172 | 152 |
| 2026 | 92 | 116 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- B21C 37/00Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products2,589
- B21C 23/00Extruding metal1,492
- B21C 47/00Winding-up, coiling or winding-off metal wire, metal band or other flexible metal993
- B21C 1/00Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by666
- B21C 51/00Measuring, gauging, indicating, counting, or marking devices specially adapted for use in391
- B21C 25/00Profiling tools for metal extruding365
- B21C 3/00Profiling tools for metal drawing300
- B21C 35/00Removing work or waste from extruding presses246
All 20 main groupsShow fewer
- B21C 33/00Feeding extrusion presses with metal to be extruded159
- B21C 29/00Cooling or heating extruded work or parts of the extrusion press138
- B21C 9/00Cooling, heating or lubricating drawing material134
- B21C 43/00Devices for cleaning metal products combined with or specially adapted for use105
- B21C 49/00Devices for temporarily accumulating material86
- B21C 31/00Control devices for metal extruding76
- B21C 27/00Containers for metal to be extruded67
- B21C 26/00Rams or plungers for metal extruding46
- B21C 5/00Pointing33
- B21C 19/00Devices for straightening wire or like work combined with or specially adapted21
- B21C 45/00Separating mandrels from work or vice versa17
- B21C 99/00Subject matter not provided for in other groups of this subclass4
Recent patents
- Thin-walled composite pipe with high thermal conductivity, and preparation method and application thereof6 Oct 2026US 12,752,327 B2Shaanxi Zinc Industry Co., Ltd.
- High strength steel sheet and method of producing same6 Oct 2026US 12,753,454 B2Jfe Steel Corporation
- Method of producing a steel sheet for cans6 Oct 2026US 12,753,472 B2Jfe Steel Corporation
- Cu—Ag alloy wire and method for producing the same6 Oct 2026US 12,755,860 B2SWCC Corporation
- Devices and method for shaping a tubular hollow element29 Sep 2026US 12,746,587 B2FELSS Systems GmbH
- Steel pipe out-of-roundness prediction method, steel pipe out-of-roundness control method, steel pipe manufacturing method, steel pipe out-of-roundness prediction model generation method, and steel pipe out-of-roundness prediction device8 Oct 2026US 2026/0307127 A1Jfe 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
- Method of producing a brush1 Oct 2026US 2026/0302708 A1
- Wire drawing die24 Sep 2026US 2026/0284726 A1A. L. M. T. Corp.
- Meandering correction apparatus for metal strip and meandering correction method for metal strip24 Sep 2026US 2026/0284727 A1Jfe Steel Corporation
Most cited
By later US patents
- Implantable medical device formed from a refractory metal having a thin coating disposed thereon520US 5,824,056 AMedtronic, Inc. · 1998
- Clad composite stent327US 5,630,840 ASchneider (USA) Inc. · 1997
- Rotary drill bit including polycrystalline diamond cutting elements320US 7,866,418 B2US Synthetic Corporation · 2011
- Guidewire for catheter281US 6,019,736 A2000
- Clad composite stent231US 5,628,787 ASchneider (USA) Inc. · 1997