C12M 29/00
Means for introduction, extraction or recirculation of materials
Official title: {Means for introduction, extraction or recirculation of materials, e.g. pumps (pumps per se F04B)}
C12M29/00 (Means for introduction, extraction or recirculation of materials) appears on 3,140 US grants and 4,903 published applications in this corpus.
Search patents in C12M- Granted patents
- 3,140
- Published applications
- 4,903
- Assignees
- 2,188
- Inventors
- 9,921
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 14 | 0 |
| 1978 | 9 | 0 |
| 1979 | 11 | 0 |
| 1980 | 26 | 0 |
| 1981 | 16 | 0 |
| 1982 | 17 | 0 |
| 1983 | 13 | 0 |
| 1984 | 23 | 0 |
| 1985 | 18 | 0 |
| 1986 | 15 | 0 |
| 1987 | 24 | 0 |
| 1988 | 24 | 0 |
| 1989 | 33 | 0 |
| 1990 | 35 | 0 |
| 1991 | 30 | 0 |
| 1992 | 26 | 0 |
| 1993 | 30 | 0 |
| 1994 | 15 | 0 |
| 1995 | 22 | 0 |
| 1996 | 24 | 0 |
| 1997 | 28 | 0 |
| 1998 | 31 | 0 |
| 1999 | 30 | 0 |
| 2000 | 25 | 0 |
| 2001 | 34 | 10 |
| 2002 | 33 | 40 |
| 2003 | 28 | 31 |
| 2004 | 23 | 56 |
| 2005 | 23 | 51 |
| 2006 | 23 | 48 |
| 2007 | 17 | 66 |
| 2008 | 16 | 79 |
| 2009 | 22 | 96 |
| 2010 | 35 | 110 |
| 2011 | 43 | 151 |
| 2012 | 56 | 159 |
| 2013 | 62 | 145 |
| 2014 | 83 | 155 |
| 2015 | 104 | 201 |
| 2016 | 114 | 239 |
| 2017 | 147 | 273 |
| 2018 | 145 | 241 |
| 2019 | 180 | 253 |
| 2020 | 180 | 323 |
| 2021 | 196 | 341 |
| 2022 | 174 | 359 |
| 2023 | 204 | 391 |
| 2024 | 232 | 365 |
| 2025 | 240 | 393 |
| 2026 | 175 | 327 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C12M 29/04Filters866
- C12M 29/10Perfusion702
- C12M 29/06Nozzles507
- C12M 29/18External loop398
- C12M 29/20Degassing248
- C12M 29/16Hollow fibers230
- C12M 29/26Conditioning fluids entering or exiting the reaction vessel208
- C12M 29/14Pressurized fluid181
All 11 subgroupsShow fewer
Recent patents
- System of valves for cell culture machine6 Oct 2026US 12,753,847 B2Cellaven
- Platforms, systems, and methods for rapid fermenter sampling6 Oct 2026US 12,755,814 B2X Development LLC
- Method of reducing nitrogen oxide concentration in sample, bioreactor, and plug flow reactor29 Sep 2026US 12,747,458 B2Korea Advanced Institute of Science and Technology
- Culturing system and method for culturing cells22 Sep 2026US 12,742,140 B2I Peace, Inc.
- Devices, systems, and methods relating to pressurized perfusion-enabled bio-reactors22 Sep 2026US 12,742,141 B2University of Florida Research Foundation, Inc.
- Perfused cell culturing systems and uses thereof8 Oct 2026US 2026/0308501 A1University of Delaware
- Stacked bioreactor for cellular therapeutics8 Oct 2026US 2026/0308502 A1Bruker Cellular Analysis, Inc.
- Culture device and culture system8 Oct 2026US 2026/0308503 A1Phc Holdings Corporation
- Treatment apparatus for cell culture solution, method for treating cell culture solution, and method for producing product8 Oct 2026US 2026/0308504 A1FUJIFILM Corporation
- Apparatus8 Oct 2026US 2026/0308512 A1
Most cited
By later US patents
- Vivo refillable glucose sensor900US 4,986,271 AUniversity of New Mexico · 1991
- Enzyme electrode and method for dextran analysis456US 4,552,840 ACalifornia and Hawaiian Sugar Company · 1985
- Oxygen permeable membrane in fermenter for oxygen enrichment of broth273US 4,649,114 AIntermedicat GmbH · 1987
- Method of polarographic analysis of lactic acid and lactate219US 4,467,811 AChildren's Hospital Medical Center · 1984
- Frameless array of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate193US 5,248,424 AZenon Environmental Inc. · 1993