B21C 47/28
Drums or other coil-holders
B21C47/28 (Drums or other coil-holders) appears on 124 US grants and 98 published applications in this corpus.
Search patents in B21C- Granted patents
- 124
- Published applications
- 98
- Assignees
- 95
- Inventors
- 254
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 1 |
| 2003 | 2 | 6 |
| 2004 | 3 | 6 |
| 2005 | 2 | 1 |
| 2006 | 4 | 5 |
| 2007 | 4 | 6 |
| 2008 | 4 | 8 |
| 2009 | 4 | 9 |
| 2010 | 3 | 6 |
| 2011 | 3 | 3 |
| 2012 | 7 | 2 |
| 2013 | 3 | 3 |
| 2014 | 1 | 1 |
| 2015 | 2 | 5 |
| 2016 | 2 | 3 |
| 2017 | 5 | 4 |
| 2018 | 6 | 5 |
| 2019 | 5 | 3 |
| 2020 | 1 | 1 |
| 2021 | 3 | 4 |
| 2022 | 1 | 4 |
| 2023 | 3 | 3 |
| 2024 | 4 | 3 |
| 2025 | 3 | 1 |
| 2026 | 0 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Strap-winding and strap-coil-deforming system18 Nov 2025US 12,472,547 B2Signode India Ltd.
- Aluminum plate coiling device13 May 2025US 12,296,369 B2Alutec Co., Ltd
- Coil skid and steel sheet manufacturing method22 Apr 2025US 12,280,412 B2Nippon Steel Corporation
- Drum for welding wire3 Sep 2024US 12,077,367 B2Spazzolplastica S.R.L.
- Wire winding device and wire treatment system2 Jul 2024US 12,023,721 B2Neturen Co., Ltd.
- Rolling plant comprising a system for mechanised unloading and loading of a sleeve23 Jul 2026US 2026/0208250 A1Fives Dms
- Winding device, method of replacing mandrel, and mandrel2 Jul 2026US 2026/0183817 A1Primetals Technologies Japan, Ltd.
- Method, reel device and computer program for operating the reel device7 May 2026US 2026/0124657 A1SMS group GmbH
- Apparatus for the production of inner assemblies and method thereof9 Apr 2026US 2026/0097920 A1G. D S.p.A.
- Metal coil stock feed system and method of operating the same26 Feb 2026US 2026/0054309 A1Edw. C. Levy Co.
Most cited
By later US patents
- Wire coiling apparatus with a recovery device for a coiled wire reel74US 4,869,437 ASMS Schloemann-Siemag Aktiengesellschaft · 1989
- Coiler spindle for winding a band-type product and its use39US 5,996,929 AKvaerner Metals Clecim · 1999
- Payoff device for a reeless package34US 6,352,215 B1Southwire Company · 2002
- Expandable drum assembly for deploying coiled pipe23US 8,985,496 B2FlexSteel Pipeline Technologies, LLC · 2015
- Method for the batch coating of saw wire18US 6,899,920 B2Esk Ceramics GmbH & Co. KG · 2005