B21B 39/04
Lifting or lowering work for conveying purposes
Official title: Lifting or lowering work for conveying purposes, e.g. tilting tables arranged immediately in front of or behind the pass (turn-over or like manipulating means as such B21B39/20)
B21B39/04 (Lifting or lowering work for conveying purposes) appears on 25 US grants and 27 published applications in this corpus.
Search patents in B21B- Granted patents
- 25
- Published applications
- 27
- Assignees
- 13
- Inventors
- 43
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 1 |
| 2003 | 0 | 4 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 13 |
| 2015 | 2 | 1 |
| 2016 | 3 | 0 |
| 2017 | 8 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Reduction of surface defects during finish rolling of hot strip14 Oct 2025US 12,440,878 B2Primetals Technologies Austria GmbH
- Refractory metal plates13 Sep 2022US 11,443,929 B2Materion Newton Inc.
- Refractory metal plates9 Mar 2021US 10,943,772 B2H. C. Starck GmbH
- Refractory metal plates with improved uniformity of texture19 Mar 2019US 10,236,164 B2H. C. Starck GmbH
- Assembly table for building air separation units remotely2 Oct 2018US 10,086,962 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Reduction of Surface Defects During Finish Rolling of Hot Strip20 Jul 2023US 2023/0226584 A1Primetals Technologies Austria GmbH
- Refractory metal plates15 Jul 2021US 2021/0217596 A1H. C. Starck GmbH
- Refractory metal plates25 Jul 2019US 2019/0228954 A1H. C. Starck GmbH
- Refractory metal plates with improved uniformity of texture8 Feb 2018US 2018/0040462 A1H. C. Starck GmbH
- Refractory metal plates15 Oct 2015US 2015/0294844 A1H. C. Starck GmbH
Most cited
By later US patents
- Assembly table for building air separation units remotely11US 10,086,962 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 2018
- Plate reduction press apparatus and methods7US 6,467,323 B1Ishikawajma-Harima Heavy Industries Co., Ltd. · 2002
- Refractory metal plates with improved uniformity of texture7US 9,095,885 B2H. C. Starck GmbH · 2015
- Plate reduction press apparatus and methods4US 6,341,516 B12002
- Lever4US 6,349,615 B1Robert Bosch GmbH · 2002