F27B 2009/2484
The conveyor being a helical device
Official title: {the conveyor being a helical device}
F27B2009/2484 (The conveyor being a helical device) appears on 24 US grants and 8 published applications in this corpus.
Search patents in F27B- Granted patents
- 24
- Published applications
- 8
- Assignees
- 21
- Inventors
- 40
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 2 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Processing apparatus and processing method2 Jun 2026US 12,644,052 B2The Japan Steel Works, Ltd.
- Heat treatment device comprising a refractory envelope5 Mar 2024US 11,920,866 B2E.T.I.A.—Evaluation Technologique, Ingenierie Et Applications
- Heat treatment apparatus9 Aug 2022US 11,407,945 B2Best Alliance Co., Ltd.
- Device for the heat treatment of a product24 Mar 2020US 10,598,435 B2E.T.I.A.—Evaluation Technologique, Ingenierie Et Applications
- Work piece conveyance jig and conveyance device provided with same, and induction heating device3 Mar 2020US 10,577,187 B2Ntn Corporation
- Method of direct recycling of spent electrodes28 Aug 2025US 2025/0273757 A1Uchicago Argonne, LLC
- Processing apparatus and processing method29 Aug 2024US 2024/0287388 A1The Japan Steel Works, Lts.
- Heat treatment apparatus24 Mar 2022US 2022/0089954 A1Best Alliance Co., Ltd.
- Systems and methods for processing metallic articles with a retort furnace28 Oct 2021US 2021/0332452 A1
- Heat treatment device comprising a refractory envelope29 Jul 2021US 2021/0231374 A1E.T.I.A.—Evaluation Technologique, Ingenierie Et Applications
Most cited
By later US patents
- System for extracting contaminants and hydrocarbons from cuttings waste in oil well drilling37US 4,606,283 A1986
- Impedance-heated furnace32US 5,869,810 A1999
- Rotary retort furnace27US 4,648,836 ACan-Eng Holdings, Ltd. · 1987
- System for extracting contaminants and hydrocarbons from cuttings waste in oil well drilling21US 4,726,301 A1988
- Trickler heat-exchange apparatus17US 4,232,734 ABuehler-Miag GmbH · 1980