C12M 23/38
Caps
Official title: {Caps; Covers; Plugs; Pouring means}
C12M23/38 (Caps) appears on 662 US grants and 915 published applications in this corpus.
Search patents in C12M- Granted patents
- 662
- Published applications
- 915
- Assignees
- 630
- Inventors
- 2,390
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 12 | 0 |
| 1990 | 8 | 0 |
| 1991 | 8 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 10 | 0 |
| 1996 | 8 | 0 |
| 1997 | 16 | 0 |
| 1998 | 15 | 0 |
| 1999 | 11 | 0 |
| 2000 | 10 | 0 |
| 2001 | 8 | 4 |
| 2002 | 10 | 6 |
| 2003 | 13 | 6 |
| 2004 | 5 | 12 |
| 2005 | 5 | 8 |
| 2006 | 3 | 12 |
| 2007 | 2 | 12 |
| 2008 | 4 | 13 |
| 2009 | 1 | 16 |
| 2010 | 11 | 30 |
| 2011 | 13 | 13 |
| 2012 | 7 | 21 |
| 2013 | 8 | 17 |
| 2014 | 10 | 29 |
| 2015 | 15 | 41 |
| 2016 | 19 | 48 |
| 2017 | 18 | 48 |
| 2018 | 26 | 36 |
| 2019 | 33 | 48 |
| 2020 | 27 | 72 |
| 2021 | 30 | 64 |
| 2022 | 37 | 67 |
| 2023 | 45 | 66 |
| 2024 | 54 | 85 |
| 2025 | 39 | 71 |
| 2026 | 52 | 70 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cell culture method and cell culture device used with cell culture method6 Oct 2026US 12,753,395 B2Yamaguchi University
- Devices, systems, and methods relating to pressurized perfusion-enabled bio-reactors22 Sep 2026US 12,742,141 B2University of Florida Research Foundation, Inc.
- Methods and articles for testing disinfectant and sanitizer efficacy22 Sep 2026US 12,742,142 B2Stratix Lab Corporation
- Capillary-driven perfusion systems and methods of use8 Sep 2026US 12,729,358 B2University of Florida Research Foundation, Inc.
- Method of testing growth of living organisms in space8 Sep 2026US 12,729,359 B1The United States of America as represented by the Secretary of the Air Force
- Improvements in cell culture8 Oct 2026US 2026/0308500 A1Cn Bio Innovations Limited
- Perfused cell culturing systems and uses thereof8 Oct 2026US 2026/0308501 A1University of Delaware
- Sampling retractor system and method of use8 Oct 2026US 2026/0308505 A1Cytiva US LLC
- Automatic culture device and automatic culture system1 Oct 2026US 2026/0297496 A1Hitachi High-Tech Corporation
- Organ-on-a-chip System and Organ-on-a-chip Package24 Sep 2026US 2026/0286263 A1Darwin Precisions Corporation
Most cited
By later US patents
- Cell encapsulation device125US 5,902,745 AGore Hybrid Technologies, Inc. · 1999
- Cell culture flask utilizing a membrane barrier123US 4,839,292 A1989
- Multilayered cell culture apparatus112US 7,745,209 B2Corning Incorporated · 2010
- Multi-well culture dish assembly108US 5,801,055 ABecton, Dickinson and Company · 1998
- Microbiological assembly comprising resealable closure means108US 6,037,168 ACytonix Corporation · 2000