A61K 49/1803
Semi-solid preparations
Official title: {Semi-solid preparations, e.g. ointments, gels, hydrogels}
A61K49/1803 (Semi-solid preparations) appears on 32 US grants and 35 published applications in this corpus.
Search patents in A61K- Granted patents
- 32
- Published applications
- 35
- Assignees
- 45
- Inventors
- 133
- Latest grant
- 29 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 2 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 3 |
| 2017 | 2 | 4 |
| 2018 | 1 | 0 |
| 2019 | 0 | 3 |
| 2020 | 3 | 3 |
| 2021 | 4 | 3 |
| 2022 | 1 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 2 |
| 2025 | 2 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydrogel particle and method for producing same, cell or cell structure each enclosing hydrogel particle therein, method for evaluating activity of cell using hydrogel particle, and use of hydrogel particle as sustained release preparation29 Apr 2025US 12,285,500 B2Konica Minolta, Inc.
- Method for manufacturing marker with aerated hydrogel18 Feb 2025US 12,226,265 B2Devicor Medical Products, Inc.
- Marker having enhanced ultrasound visibility and method of manufacturing the same23 Jul 2024US 12,042,772 B2Devicor Medical Products, Inc.
- Marker having enhanced ultrasound visibility and method of manufacturing the same24 Oct 2023US 11,794,156 B2Devicor Medical Products, Inc.
- Peptide hydrogels generating chemical exchange saturation transfer MRI contrast and uses thereof1 Feb 2022US 11,235,075 B2Kennedy Krieger Institute, Inc.
- Nanosheet-hydrogel composites and methods of us30 Jul 2026US 2026/0216095 A1Rutgers, The State University of New Jersey
- Contrast agent for magnetic resonance imaging23 Jul 2026US 2026/0207792 A1Wenzhou Institute, University of Chinese Academy Of Sciences
- Alginic acid-based injectable hydrogel system13 Mar 2025US 2025/0082787 A1National Cancer Center
- Fluorinated fibers for multimodal 1h and 19f mri, ultrasound, fluorescence detection and conformational and temperature detection by 19f mrs11 Apr 2024US 2024/0115742 A1
- Marker having enhanced ultrasound visibility and method of manufacturing the same11 Jan 2024US 2024/0009638 A1Devicor Medical Products, Inc.
Most cited
By later US patents
- Hydrogel compositions and methods of use667US 5,514,379 AThe General Hospital Corporation · 1996
- Methoxylated gel particle contrast media for improved diagnostic imaging98US 5,358,702 A1994
- Use of cross-linked hydrogel materials as image contrast agents in proton nuclear magnetic resonance tomography and tissue phantom kits containing such materials60US 4,729,892 ACiba-Geigy Corporation · 1988
- Preparation and magnetic properties of very small magnetite-dextran particles54US 5,349,957 ASterling Winthrop Inc. · 1994
- Process for making skin marker52US 4,916,170 ANippon Oil Co., Ltd. · 1990