C12M 33/16
Screw conveyor
Official title: {Screw conveyor}
C12M33/16 (Screw conveyor) appears on 58 US grants and 47 published applications in this corpus.
Search patents in C12M- Granted patents
- 58
- Published applications
- 47
- Assignees
- 47
- Inventors
- 141
- Latest grant
- 24 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 4 |
| 2005 | 2 | 1 |
| 2006 | 1 | 0 |
| 2007 | 2 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 4 |
| 2010 | 1 | 6 |
| 2011 | 2 | 2 |
| 2012 | 2 | 4 |
| 2013 | 1 | 2 |
| 2014 | 5 | 4 |
| 2015 | 4 | 1 |
| 2016 | 0 | 4 |
| 2017 | 2 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 2 | 1 |
| 2021 | 0 | 2 |
| 2022 | 1 | 3 |
| 2023 | 1 | 1 |
| 2024 | 3 | 2 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Biohydrogen production device of corn stalks based on synchronous saccharification and fermentation and hydrogen production method thereof24 Jun 2025US 12,338,421 B2Harbin Institute of Technology
- Helical screw conveyor unit, worm shaft, worm extruder, and method for providing a worm shaft20 May 2025US 12,304,167 B2Kanadevia Inova AG
- Cell culture bottle26 Nov 2024US 12,152,226 B2Green Elephant Biotech GmbH
- Fermentation device, planting system, and fermentation method13 Aug 2024US 12,060,550 B1Shenzhen Chengxin Environmental Protection Technology Co., Ltd
- Rapid pretreatment6 Aug 2024US 12,054,761 B2Apalta Patents OÜ
- Biohydrogen production device of corn stalks based on synchronous saccharification and fermentation and hydrogen production method thereof8 May 2025US 2025/0145920 A1Harbin Institute of Technology
- Rapid pretreatment26 Dec 2024US 2024/0425893 A1Apalta Patents OÜ
- Helical screw conveyor unit, worm shaft, worm extruder, and method for providing a worm shaft19 Dec 2024US 2024/0416607 A1Hitachi Zosen Inova AG
- Rapid pretreatment21 Sep 2023US 2023/0295678 A1Apalta Patents OÜ
- Micro-organism identification using light microscopes, conveyor belts, static electricity, artificial intelligence and machine learning algorithms6 Oct 2022US 2022/0317434 A1
Most cited
By later US patents
- Method for the anaerobic decomposition of organic waste38US 5,389,258 AOrganic Waste Systems, N.V. · 1995
- Method of making compost and spawned compost, mushroom spawn and generating methane gas33US 4,263,744 A1981
- Animal enclosure system with waste treatment means31US 4,121,539 A1978
- Biological fermentation device26US 4,350,588 A1982
- Device and process for composting and wet fermentation of biological waste24US 5,782,950 ABeg Bioenergie GmbH · 1998