B21C 47/3433
For guiding the leading end of the material
Official title: {for guiding the leading end of the material, e.g. from or to a coiler}
B21C47/3433 (For guiding the leading end of the material) appears on 76 US grants and 58 published applications in this corpus.
Search patents in B21C- Granted patents
- 76
- Published applications
- 58
- Assignees
- 46
- Inventors
- 174
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 3 |
| 2003 | 4 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 2 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 2 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 3 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 2 |
| 2015 | 1 | 2 |
| 2016 | 0 | 4 |
| 2017 | 4 | 7 |
| 2018 | 3 | 11 |
| 2019 | 7 | 3 |
| 2020 | 4 | 3 |
| 2021 | 3 | 4 |
| 2022 | 7 | 1 |
| 2023 | 2 | 1 |
| 2024 | 2 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Device and method for unwinding and inspection of metallic strip coils31 Mar 2026US 12,589,424 B2Danieli & C. Officine Meccaniche SpA
- Pre-ageing systems and methods using magnetic heating24 Jun 2025US 12,338,520 B2Novelis Inc.
- Wire handling device4 Jun 2024US 11,999,586 B2Sw Automatisierung GmbH
- Coiling device for a large range of metal strip thicknesses20 Feb 2024US 11,904,371 B2Primetals Technologies Austria GmbH
- Systems and methods for non-contact tensioning of a metal strip21 Nov 2023US 11,821,066 B2Novelis Inc.
- Winding method and system27 Aug 2026US 2026/0249341 A1Primetals Technologies Austria GmbH
- Scrap clearing system, metal-strip production line, and scrap clearing method13 Aug 2026US 2026/0233273 A1Primetals Technologies Austria GmbH
- Apparatus having a coiling device23 Jul 2026US 2026/0208248 A1SMS group GmbH
- Metal coil stock feed system and method of operating the same26 Feb 2026US 2026/0054309 A1Edw. C. Levy Co.
- Apparatus and Method for Making a Coil, Preferably for an Electrochemical Cell Intended for the Production of Batteries15 May 2025US 2025/0158103 A1
Most cited
By later US patents
- High speed transfer of strip in a continuous strip processing application19US 6,082,659 AKaiser Aluminum & Chemical Corporation · 2000
- Conveyor for feeding strip material in a machine for working on the same18US 4,730,781 A1988
- Feeding thin foil-like material into a gap between a pair of rotatable rolls15US 4,520,645 ADavy McKee (Poole) Limited · 1985
- Two-roller driving device14US 4,048,831 AHoesch Werke Aktiengesellschaft · 1977
- Frangible strip threading apparatus for rolling mill14US 4,138,074 ALoewy Robertson Engineering Company Limited · 1979