A61K 49/1863
The organic macromolecular compound being a polysaccharide or derivative thereof
Official title: {the organic macromolecular compound being a polysaccharide or derivative thereof, e.g. chitosan, chitin, cellulose, pectin, starch}
A61K49/1863 (The organic macromolecular compound being a polysaccharide or derivative thereof) appears on 142 US grants and 167 published applications in this corpus.
Search patents in A61K- Granted patents
- 142
- Published applications
- 167
- Assignees
- 115
- Inventors
- 438
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 16 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 7 |
| 2003 | 5 | 10 |
| 2004 | 1 | 0 |
| 2005 | 1 | 3 |
| 2006 | 1 | 3 |
| 2007 | 0 | 6 |
| 2008 | 0 | 6 |
| 2009 | 2 | 9 |
| 2010 | 1 | 8 |
| 2011 | 2 | 15 |
| 2012 | 0 | 12 |
| 2013 | 9 | 8 |
| 2014 | 5 | 13 |
| 2015 | 8 | 8 |
| 2016 | 5 | 5 |
| 2017 | 4 | 9 |
| 2018 | 3 | 7 |
| 2019 | 3 | 9 |
| 2020 | 5 | 6 |
| 2021 | 6 | 7 |
| 2022 | 2 | 3 |
| 2023 | 3 | 5 |
| 2024 | 2 | 3 |
| 2025 | 3 | 2 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic probe apparatus23 Jun 2026US 12,663,487 B2Endomagnetics Ltd
- Method for increasing dispersion stability of nanoparticles as T1 MRI contrast agent and T1 MRI contrast nanoparticles16 Dec 2025US 12,496,363 B2Inventera Inc.
- Methods and systems for cell labeling and imaging18 Nov 2025US 12,473,522 B2Cellfe, Inc.
- System and method for magnetic resonance neurography using intravenous ultrasmall supraparamagnetic iron oxide particles4 Nov 2025US 12,458,244 B2New York Society for the Relief of the Ruptured and Crippled, Maintaining the Hospital for Special Surgery
- Magnetic probe apparatus17 Sep 2024US 12,092,708 B2Endomagnetics Ltd
- Glycyrrhizin-glycol chitosan conjugate-coated iron oxide nanoparticles and use thereof14 May 2026US 2026/0130951 A1Industry-University Cooperation Foundation Hanyang University
- Method for increasing dispersion stability of nanoparticles as t1 mri contrast agent and t1 mri contrast nanoparticles19 Mar 2026US 2026/0077070 A1Inventera Inc.
- Compositions and methods for tunable magnetic nanoparticles5 Mar 2026US 2026/0061070 A1The General Hospital Corporation
- Nanostructure excreted in urine through kidney without being phagocytosed and/or metabolized by macrophage after in vivo injection11 Sep 2025US 2025/0281651 A1Inventera Inc.
- Magnetic ferroferric oxide nanoparticle, and preparation method therefor and use thereof2 Jan 2025US 2025/0001018 A1South Medical University
Most cited
By later US patents
- Composition useful for in vivo delivery of biologics and methods employing same369US 5,498,421 AVivorx Pharmaceuticals, Inc. · 1996
- Mucoadhesive compositions for increasing the ultrasonic image contrast of the digestive tract241US 5,688,490 ABracco International B. V. · 1997
- Methods for the preparation of immunostimulating agents for in vivo delivery200US 5,665,383 AVivorx Pharmaceuticals, Inc. · 1997
- Magnetic resonance imaging with fluorocarbons encapsulated in a cross-linked polymeric shell193US 5,362,478 AVivorx Pharmaceuticals, Inc. · 1994
- Method for the preparation of fluorocarbon-containing polymeric shells for medical imaging192US 5,505,932 AVivorx Pharmaceuticals, Inc. · 1996