C12M 27/24
Draft tube
Official title: {Draft tube (C12M29/08 takes precedence)}
C12M27/24 (Draft tube) appears on 94 US grants and 70 published applications in this corpus.
Search patents in C12M- Granted patents
- 94
- Published applications
- 70
- Assignees
- 77
- Inventors
- 207
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 2 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 5 |
| 2009 | 2 | 4 |
| 2010 | 3 | 3 |
| 2011 | 0 | 7 |
| 2012 | 2 | 3 |
| 2013 | 2 | 1 |
| 2014 | 2 | 7 |
| 2015 | 2 | 4 |
| 2016 | 1 | 2 |
| 2017 | 4 | 6 |
| 2018 | 5 | 5 |
| 2019 | 4 | 2 |
| 2020 | 2 | 3 |
| 2021 | 2 | 0 |
| 2022 | 1 | 2 |
| 2023 | 0 | 3 |
| 2024 | 0 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Culture device and culture method10 Feb 2026US 12,545,885 B2Honda Motor Co., Ltd.
- Bioreactors for growing micro-organisms14 Jan 2025US 12,195,714 B2Solar Foods Oyj
- Syntrophic enrichment for enhanced digestion process15 Mar 2022US 11,274,054 B2Greater Vancouver Sewerage & Drainage District
- Fermenter for a liquid medium with gas circulation stirring, comprising an automatic device for establishing a fluid communication between the ascending circulation and the descending circulation volumes depending on the height of the medium13 Apr 2021US 10,975,347 B2Biorea
- C1 substrate-fed fermentation systems and methods for producing C4 compounds12 Jan 2021US 10,889,793 B2Calysta, Inc.
- System, apparatus and method for a modular photobioreactor21 May 2026US 2026/0139209 A1Solarferm Limited
- Multiphase biocatalytic reactor and separator system26 Feb 2026US 2026/0055434 A1Delft Advanced Biofuels B.V.
- Device for culturing photosynthetic organism and method for culturing photosynthetic organism using same18 Sep 2025US 2025/0290029 A1Bio-Energy Corporation
- Adjustable gas siphon for mixing densified solids in water systems1 May 2025US 2025/0135417 A1Hampton Roads Sanitation District
- Bioprocessing vessel having integral fluid conduit18 Jan 2024US 2024/0018453 A1Global Life Sciences Solutions USA LLC
Most cited
By later US patents
- Apparatus for mixing a liquid phase and a gaseous phase92US 4,051,204 A1977
- Method and apparatus for the submerged growth of cell cultures69US 4,749,654 AChemap AG · 1988
- Circulatory culture equipment50US 5,270,207 AMeiji Milk Products Co., Ltd. · 1993
- Agitator for a fermentation and tissue culturing vessel43US 4,634,675 ANew Brunswick Scientific Co., Inc. · 1987
- Anaerobic reactor36US 4,530,762 A1985