B21F
Working or processing of metal wire
Official title: WORKING OR PROCESSING OF METAL WIRE (rolling of metal wire B21B1/16; by drawing, auxiliary operations used in connection with metal-working without essentially removing material B21C)
B21F (Working or processing of metal wire) appears on 2,614 US grants and 2,030 published applications in this corpus.
Search patents in B21F- Granted patents
- 2,614
- Published applications
- 2,030
- Assignees
- 1,322
- Inventors
- 4,238
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 58 | 0 |
| 1977 | 57 | 0 |
| 1978 | 56 | 0 |
| 1979 | 34 | 0 |
| 1980 | 36 | 0 |
| 1981 | 39 | 0 |
| 1982 | 32 | 0 |
| 1983 | 37 | 0 |
| 1984 | 40 | 0 |
| 1985 | 49 | 0 |
| 1986 | 32 | 0 |
| 1987 | 36 | 0 |
| 1988 | 35 | 0 |
| 1989 | 48 | 0 |
| 1990 | 38 | 0 |
| 1991 | 41 | 0 |
| 1992 | 42 | 0 |
| 1993 | 41 | 0 |
| 1994 | 43 | 0 |
| 1995 | 57 | 0 |
| 1996 | 47 | 0 |
| 1997 | 52 | 0 |
| 1998 | 62 | 0 |
| 1999 | 49 | 0 |
| 2000 | 55 | 0 |
| 2001 | 36 | 14 |
| 2002 | 47 | 73 |
| 2003 | 52 | 52 |
| 2004 | 48 | 71 |
| 2005 | 40 | 72 |
| 2006 | 41 | 50 |
| 2007 | 27 | 58 |
| 2008 | 33 | 70 |
| 2009 | 29 | 57 |
| 2010 | 37 | 46 |
| 2011 | 37 | 86 |
| 2012 | 45 | 66 |
| 2013 | 46 | 75 |
| 2014 | 54 | 78 |
| 2015 | 64 | 100 |
| 2016 | 73 | 86 |
| 2017 | 78 | 92 |
| 2018 | 63 | 94 |
| 2019 | 79 | 116 |
| 2020 | 89 | 102 |
| 2021 | 77 | 117 |
| 2022 | 81 | 86 |
| 2023 | 107 | 113 |
| 2024 | 89 | 113 |
| 2025 | 73 | 78 |
| 2026 | 53 | 65 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- B21F 1/00Bending wire other than coiling543
- B21F 45/00Wire-working in the manufacture of other particular articles463
- B21F 3/00Coiling wire into particular forms435
- B21F 27/00Making wire network, i.e. wire nets405
- B21F 15/00Connecting wire to wire or other metallic material or objects350
- B21F 23/00Feeding wire in wire-working machines or apparatus258
- B21F 35/00Making springs from wire221
- B21F 11/00Cutting wire156
All 23 main groupsShow fewer
- B21F 33/00Tools or devices specially designed for handling or processing wire fabrics or155
- B21F 7/00Twisting wire117
- B21F 9/00Straining wire82
- B21F 99/00Subject matter not provided for in other groups of this subclass65
- B21F 5/00Upsetting wire64
- B21F 37/00Manufacture of rings from wire48
- B21F 25/00Making barbed wire36
- B21F 17/00Jacketing or reinforcing articles with wire34
- B21F 29/00Making fencing or like material made partly of wire32
- B21F 43/00Making bands24
- B21F 19/00Metallic coating of wire13
- B21F 13/00Splitting wire11
- B21F 39/00Making wheel spokes from wire10
- B21F 31/00Making meshed-ring network from wire8
- B21F 41/00Making umbrella frames or members from wire0
Recent patents
- Wire mesh products and manufacturing systems and methods therefore6 Oct 2026US 12,752,335 B2Riverdale Mills Corporation
- Cu—Ag alloy wire and method for producing the same6 Oct 2026US 12,755,860 B2SWCC Corporation
- Needle bending device29 Sep 2026US 12,746,592 B2Precision Bend LLC
- Tool moving device and wire forming machine22 Sep 2026US 12,741,310 B2Asahi-Seiki Manufacturing Co., Ltd.
- Apparatus and method for bending elongated metal products15 Sep 2026US 12,734,572 B2M. E. P. Macchine Elettroniche Piegatrici SpA
- Method for producing a wire packet for use in a wave winding mat, wire packet for use in a wave winding mat and device for producing a wire packet formed from at least one first bent wire blank and at least one second bent wire blank8 Oct 2026US 2026/0307135 A1Schaeffler Technolologies AG & Co. KG
- Wire data processing system, control device, control method, and control program8 Oct 2026US 2026/0309483 A1NHK Spring Co., Ltd.
- Wire straightening device and method for manufacturing wire10 Sep 2026US 2026/0264132 A1Proterial, Ltd.
- Binding device27 Aug 2026US 2026/0250968 A1Max Co., Ltd.
- Metal wire feeding system20 Aug 2026US 2026/0241477 A1Norsk Titanium AS
Most cited
By later US patents
- Intravascular radially expandable stent and method of implant1,694US 4,886,062 AMedtronic, Inc. · 1989
- Endovascular stent and delivery system1,483US 4,800,882 ACook Incorporated · 1989
- Method of forming a wire package1,477US 6,931,830 B22005
- Hog ring fastener, tool and methods1,356US 5,035,040 ADuo-Fast Corporation · 1991
- Medical staple forming die and punch1,336US 5,381,649 A1995