A61K 33/44
Elemental carbon
Official title: Elemental carbon, e.g. charcoal, carbon black
A61K33/44 (Elemental carbon) appears on 196 US grants and 350 published applications in this corpus.
Search patents in A61K- Granted patents
- 196
- Published applications
- 350
- Assignees
- 173
- Inventors
- 659
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 2 |
| 2002 | 2 | 3 |
| 2003 | 1 | 3 |
| 2004 | 2 | 7 |
| 2005 | 2 | 10 |
| 2006 | 1 | 12 |
| 2007 | 3 | 13 |
| 2008 | 1 | 15 |
| 2009 | 1 | 10 |
| 2010 | 5 | 10 |
| 2011 | 6 | 7 |
| 2012 | 7 | 11 |
| 2013 | 11 | 18 |
| 2014 | 8 | 16 |
| 2015 | 9 | 13 |
| 2016 | 7 | 16 |
| 2017 | 11 | 17 |
| 2018 | 15 | 26 |
| 2019 | 10 | 17 |
| 2020 | 15 | 17 |
| 2021 | 14 | 25 |
| 2022 | 8 | 24 |
| 2023 | 11 | 11 |
| 2024 | 9 | 20 |
| 2025 | 13 | 16 |
| 2026 | 9 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods of treating erythropoietic protoporphyria, x-linked protoporphyria, or congenital erythropoietic porphyria with glycine transport inhibitors1 Sep 2026US 12,721,847 B2Disc Medicine, Inc.
- Fullerenes to treat diseases and conditions25 Aug 2026US 12,714,679 B2The Cleveland Clinic Foundation
- Pharmaceutical composition for preventing or treating COVID-19 comprising nano-sized graphene oxide composite and method using same14 Jul 2026US 12,678,459 B2INBCT Co., Ltd.
- Use of two-dimensional nanomaterial in inhibition of coronavirus28 Apr 2026US 12,611,385 B2Institute of High Energy Physics, Cas
- Biochars, biochar extracts and biochar extracts having soluble signaling compounds and method for capturing material extracted from biochar14 Apr 2026US 12,599,151 B2Talipot Cool Extract (IP), LLC
- Biochars, biochar extracts and biochar extracts having soluble signaling compounds and method for capturing material extracted from biochar10 Sep 2026US 2026/0262683 A1Talipot Cool Extract (IP), LLC
- Palatability-Enhanced Activated Charcoal Systems Enabling Voluntary Ingestion for Toxin Removal in Animals3 Sep 2026US 2026/0256837 A1Pet Vet Products, LLC
- Methods of treating erythropoietic protoporphyria, x-linked protoporphyria, or congenital erythropoietic porphyria with glycine transport inhibitors13 Aug 2026US 2026/0232656 A1Disc Medicine, Inc.
- Application of carbon nanoparticle suspension injection-fe in combined administration18 Jun 2026US 2026/0166077 A1Sichuan Enray Pharmaceutical Technology Co., Ltd.
- Graphene oxide-based composition for preventing or alleviating hair loss26 Feb 2026US 2026/0053720 A1Korea Advanced Institute of Science and Technology
Most cited
By later US patents
- Method of making functionalized nanotubes201US 6,203,814 B1Hyperion Catalysis International, Inc. · 2001
- Site-specific intestinal delivery of adsorbents, alone or in combination with degrading molecules54US 8,048,413 B22011
- Dialysis system and method for removing toxic matter from the serum of the large intestine34US 5,755,968 A1998
- Porous and spherical carbonaceous product31US 4,681,764 AKureha Kagaku Kogyo Kabushiki Kaisha · 1987
- Functionalized nanotubes27US 7,854,945 B2Hyperion Catalysis International, Inc. · 2010