C12M 29/24
Recirculation of gas
Official title: {Recirculation of gas}
C12M29/24 (Recirculation of gas) appears on 153 US grants and 216 published applications in this corpus.
Search patents in C12M- Granted patents
- 153
- Published applications
- 216
- Assignees
- 168
- Inventors
- 469
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 3 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 2 | 2 |
| 2006 | 2 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 4 |
| 2009 | 1 | 7 |
| 2010 | 1 | 3 |
| 2011 | 1 | 11 |
| 2012 | 6 | 11 |
| 2013 | 7 | 14 |
| 2014 | 2 | 12 |
| 2015 | 10 | 12 |
| 2016 | 10 | 10 |
| 2017 | 5 | 9 |
| 2018 | 4 | 7 |
| 2019 | 5 | 16 |
| 2020 | 6 | 11 |
| 2021 | 11 | 11 |
| 2022 | 8 | 11 |
| 2023 | 4 | 16 |
| 2024 | 7 | 16 |
| 2025 | 13 | 14 |
| 2026 | 6 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for producing a bio-inactve and shelf stable biomass matter derived from bioactive biomass feedstock11 Aug 2026US 12,703,847 B1Green Recovery Technologies, LLC
- Cluster airlift bioreactor7 Jul 2026US 12,674,130 B2Ark Biotech Inc.
- Microfluidic systems and support module30 Jun 2026US 12,668,766 B2Javelin Biotech, Inc.
- Cell culture system28 Apr 2026US 12,612,582 B2Hitachi, Ltd.
- Electromagnetic radiation method and apparatus for performing the same24 Mar 2026US 12,584,123 B2Electronics and Telecommunications Research Institute
- Method for controlling biogas production processes and digester for biogas production1 Oct 2026US 2026/0297480 A1
- Temperature control system for a large-scale cell culture chamber10 Sep 2026US 2026/0265666 A1CellFabs Inc.
- Bioreactor vessel25 Jun 2026US 2026/0176562 A1The Automation Partnership (Cambridge) Limited
- Rotary biological culture and observation apparatus11 Jun 2026US 2026/0159798 A1Shandong University
- Culture device28 May 2026US 2026/0146220 A1FUJIFILM Corporation
Most cited
By later US patents
- Controlled atmosphere enclosure77US 4,701,415 AMallinckrodt Inc. · 1987
- Hybrid bio-thermal gasification71US 4,289,625 AInstitute of Gas Technology · 1981
- Process and apparatus for the anaerobic treatment of waste water in a filter including granular material64US 4,482,458 ADegremont · 1984
- Mixing system with condenser63US 8,455,242 B2HyClone Laboratories, Inc. · 2013
- Controlled atmosphere enclosure62US 4,572,427 AMallinckrodt Inc. · 1986