B21C 47/30
Expansible or contractible
Official title: expansible or contractible
B21C47/30 (Expansible or contractible) appears on 66 US grants and 45 published applications in this corpus.
Search patents in B21C- Granted patents
- 66
- Published applications
- 45
- Assignees
- 49
- Inventors
- 128
- Latest grant
- 2 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 0 |
| 2003 | 0 | 3 |
| 2004 | 2 | 4 |
| 2005 | 1 | 1 |
| 2006 | 3 | 1 |
| 2007 | 1 | 5 |
| 2008 | 4 | 5 |
| 2009 | 4 | 4 |
| 2010 | 1 | 3 |
| 2011 | 2 | 1 |
| 2012 | 2 | 0 |
| 2013 | 2 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 2 |
| 2017 | 2 | 2 |
| 2018 | 4 | 3 |
| 2019 | 4 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Wire winding device and wire treatment system2 Jul 2024US 12,023,721 B2Neturen Co., Ltd.
- Manufacturing apparatus and manufacturing method of hot-rolled coil11 Jul 2023US 11,697,144 B2Nippon Steel Corporation
- Coiling head apparatus and system21 Jun 2022US 11,364,528 B2Reel Power Licensing Corp.
- Telescopic pneumatic linear actuator, particularly for unwinders with movable arms12 Nov 2019US 10,472,200 B2Renova S.R.L.
- Pivoting gripper mandrel22 Oct 2019US 10,450,158 B2
- 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 use with an uncoiling mandrel2 Feb 2023US 2023/0036442 A1
- Manufacturing apparatus and manufacturing method of hot-rolled coil19 May 2022US 2022/0152679 A1Nippon Steel Corporation
- Coiling mandrel and relative procedure for monitoring the condition thereof26 Aug 2021US 2021/0260637 A1Danieli & C. Officine Meccaniche SpA
Most cited
By later US patents
- 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
- Wire winding machine18US 7,076,985 B22006
- Adjustable decoiling device14US 5,318,236 AM. I. C. Industries, Inc. · 1994