A61K 49/04
X-ray contrast preparations
A61K49/04 (X-ray contrast preparations) appears on 1,244 US grants and 1,450 published applications in this corpus.
Search patents in A61K- Granted patents
- 1,244
- Published applications
- 1,450
- Assignees
- 709
- Inventors
- 2,827
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 13 | 0 |
| 1978 | 11 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 8 | 0 |
| 1991 | 14 | 0 |
| 1992 | 12 | 0 |
| 1993 | 22 | 0 |
| 1994 | 45 | 0 |
| 1995 | 46 | 0 |
| 1996 | 41 | 0 |
| 1997 | 55 | 0 |
| 1998 | 35 | 0 |
| 1999 | 25 | 0 |
| 2000 | 24 | 0 |
| 2001 | 23 | 11 |
| 2002 | 29 | 35 |
| 2003 | 31 | 43 |
| 2004 | 13 | 51 |
| 2005 | 13 | 49 |
| 2006 | 18 | 39 |
| 2007 | 11 | 51 |
| 2008 | 16 | 42 |
| 2009 | 16 | 41 |
| 2010 | 25 | 70 |
| 2011 | 17 | 56 |
| 2012 | 29 | 46 |
| 2013 | 40 | 71 |
| 2014 | 46 | 88 |
| 2015 | 53 | 91 |
| 2016 | 39 | 80 |
| 2017 | 63 | 43 |
| 2018 | 37 | 55 |
| 2019 | 43 | 65 |
| 2020 | 37 | 63 |
| 2021 | 49 | 68 |
| 2022 | 47 | 58 |
| 2023 | 50 | 53 |
| 2024 | 37 | 72 |
| 2025 | 39 | 56 |
| 2026 | 20 | 53 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Iodine labeled hydrogels and precursors thereof with improved radiopacity29 Sep 2026US 12,746,296 B2Boston Scientific Scimed, Inc.
- Radiopaque polymers with enhanced radiopacity15 Sep 2026US 12,734,255 B2Embolization, Inc.
- Radiopaque nanoparticles for medical imaging7 Jul 2026US 12,673,121 B2Translational and Fundamental Technologies Institute LLC
- Radiographic contrast agents for temporal subtraction and dual-energy x-ray imaging16 Jun 2026US 12,653,474 B2The Trustees of the University of Pennsylvania
- Liposomal nanocarrier delivery system for targeting active CD44 molecule, preparation method therefor, and uses thereof2 Jun 2026US 12,642,875 B2Beijing Inno Medicine Co., Ltd.
- Human mesothelin binders3 Sep 2026US 2026/0258147 A1
- A method for preparing microparticles for drug delivery27 Aug 2026US 2026/0248735 A1Danmarks Tekniske Universitet
- Radiopaque amino-functional poly(amino acid) compounds for medical applications27 Aug 2026US 2026/0248970 A1Boston Scientific Scimed, Inc.
- All-in-one multimodal nanotheranostic platform for image-guided therapy20 Aug 2026US 2026/0241003 A1The Johns Hopkins University
- Systems, methods, and devices for medical image analysis, diagnosis, risk stratification, decision making and/or disease tracking13 Aug 2026US 2026/0232285 A1Cleerly, Inc.
Most cited
By later US patents
- Surface modified drug nanoparticles993US 5,145,684 ASterling Drug Inc. · 1992
- Compositions for use in embolizing blood vessels643US 5,667,767 AMicro Therapeutics, Inc. · 1997
- Compositions for use in embolizing blood vessels544US 5,851,508 AMicroTherapeutics, Inc. · 1998
- Surface modified anticancer nanoparticles469US 5,399,363 AEastman Kodak Company · 1995
- Diagnostic media413US 4,647,447 ASchering Corporation · 1987