C12N 2500/20
Transition metals
C12N2500/20 (Transition metals) appears on 843 US grants and 1,435 published applications in this corpus.
Search patents in C12N- Granted patents
- 843
- Published applications
- 1,435
- Assignees
- 734
- Inventors
- 2,704
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 10 | 0 |
| 1993 | 4 | 0 |
| 1994 | 8 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 17 | 0 |
| 1998 | 23 | 0 |
| 1999 | 21 | 0 |
| 2000 | 22 | 0 |
| 2001 | 13 | 9 |
| 2002 | 22 | 31 |
| 2003 | 20 | 50 |
| 2004 | 8 | 39 |
| 2005 | 15 | 50 |
| 2006 | 19 | 33 |
| 2007 | 17 | 40 |
| 2008 | 26 | 47 |
| 2009 | 7 | 49 |
| 2010 | 19 | 50 |
| 2011 | 24 | 60 |
| 2012 | 36 | 60 |
| 2013 | 23 | 54 |
| 2014 | 29 | 48 |
| 2015 | 43 | 53 |
| 2016 | 46 | 73 |
| 2017 | 38 | 69 |
| 2018 | 40 | 52 |
| 2019 | 34 | 63 |
| 2020 | 41 | 74 |
| 2021 | 30 | 76 |
| 2022 | 33 | 73 |
| 2023 | 31 | 86 |
| 2024 | 36 | 78 |
| 2025 | 43 | 67 |
| 2026 | 21 | 51 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Immortalized keratinocytes, lentivirus for keratinocyte immortalization, and methods of use6 Oct 2026US 12,753,388 B2Regents of the University of Minnesota
- Cell culture medium for culturing extracellular vesicles at high concentration and method for preparing conditioned medium containing high concentration of extracellular vesicles using cell culture medium29 Sep 2026US 12,747,423 B2Biosolution Co., Ltd
- In vitro method of differentiating a human pluripotent stem cell population into a cardiomyocyte cell population11 Aug 2026US 12,703,854 B2Ncardia B.V.
- Culture media based on protein hydrolysate and a process for preparing thereof21 Jul 2026US 12,686,847 B2BTL Healthcare Technologies A.S.
- Antibacterial tryglysin agents19 May 2026US 12,630,585 B2The Board of Trustees of the University of Illinois
- Cryopreserved endocrine cells that express chromogranin a1 Oct 2026US 2026/0294981 A1ViaCyte, Inc.
- SIRPalpha Knockout iPSC-derived and CAR-comprising Macrophages with Enhanced Anti-tumor Activity24 Sep 2026US 2026/0284104 A1Wisconsin Alumni Research Foundation
- Composition for inducing direct differentiation of stem cells into corneal endothelial cells and method for inducing direct differentiation using same24 Sep 2026US 2026/0286295 A1The Asan Foundation
- Media and methods for differentiating t cells from hematopoietic stem cells17 Sep 2026US 2026/0272984 A1The Regents of the University of California
- Engineered cells and methods of use3 Sep 2026US 2026/0256838 A1The Regents of the University of California
Most cited
By later US patents
- Protein-free culture medium464US 4,767,704 AColumbia University in the City of New York · 1988
- Cell culture medium with antioxidant409US 4,927,762 ACell Enterprises, Inc. · 1990
- In vitro growth and proliferation of genetically modified multipotent neural stem cells and their progeny316US 5,750,376 ANeurospheres Holdings Ltd. · 1998
- Adipose-derived stem cells and lattices313US 6,777,231 B1The Regents of the University of California · 2004
- In vitro growth and proliferation of multipotent neural stem cells and their progeny265US 5,851,832 ANeurospheres, Ltd. · 1998