G01R 33/281
Means for the use of in vitro contrast agents
Official title: {Means for the use of in vitro contrast agents (G01R33/282 takes precedence; involving use of a contrast agent in MR imaging G01R33/5601; in vivo contrast agents A61K49/0002)}
G01R33/281 (Means for the use of in vitro contrast agents) appears on 230 US grants and 206 published applications in this corpus.
Search patents in G01R- Granted patents
- 230
- Published applications
- 206
- Assignees
- 158
- Inventors
- 518
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 12 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 11 | 5 |
| 2002 | 12 | 12 |
| 2003 | 14 | 10 |
| 2004 | 4 | 13 |
| 2005 | 7 | 12 |
| 2006 | 7 | 7 |
| 2007 | 4 | 9 |
| 2008 | 6 | 16 |
| 2009 | 9 | 15 |
| 2010 | 10 | 16 |
| 2011 | 10 | 14 |
| 2012 | 15 | 11 |
| 2013 | 11 | 12 |
| 2014 | 10 | 10 |
| 2015 | 9 | 8 |
| 2016 | 4 | 4 |
| 2017 | 3 | 4 |
| 2018 | 3 | 8 |
| 2019 | 5 | 6 |
| 2020 | 5 | 3 |
| 2021 | 2 | 5 |
| 2022 | 3 | 0 |
| 2023 | 1 | 2 |
| 2024 | 3 | 2 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for using improved contrast agent in performing and MRI20 Jan 2026US 12,529,737 B2
- Method for joint arterial input function and tracer kinetic parameter estimation in accelerated DCE-MRI using a model consistency constraint14 May 2024US 11,982,726 B2University of Southern California
- Magnetic resonance maps for analyzing brain tissue19 Mar 2024US 11,933,866 B2Ramot at Tel-Aviv University Ltd.
- Magnetic resonance maps for analyzing tissue6 Feb 2024US 11,892,530 B2Ramot at Tel-Aviv University Ltd.
- Providing a medical image27 Jun 2023US 11,684,262 B2Siemens Healthcare GmbH
- Generation of artificial contrast-enhanced radiological images18 Jun 2026US 2026/0165598 A1Bayer Aktiengesellschaft
- Materials and methods for repeatable magnetic nanoparticle-based heating for tumor ablation25 Sep 2025US 2025/0295778 A1
- Trityl-nitroxide multiradicals as polarizing agents for dynmaic nuclear polarization5 Dec 2024US 2024/0400585 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- System and method for imaging organs with multiple blood supplies21 Mar 2024US 2024/0090790 A1Wisconsin Alumni Research Foundation
- Acceleration of mri examinations20 Apr 2023US 2023/0120273 A1
Most cited
By later US patents
- Radiographic multi-modality skin markers329US 5,469,847 AIzi Corporation · 1995
- Patient infusion system for use with MRI230US 5,494,036 AMedrad, Inc. · 1996
- Magnetic resonance arteriography with dynamic intravenous contrast agents185US 5,417,213 A1995
- Contrast-enhanced coronary artery and coronary artery bypass graft imaging using an aortic root catheter injection with either magnetic resonance angiography or computed tomographic angiography156US 6,442,415 B1Magnetic Moments, LLC · 2002
- Apparatus and methodology for determining oxygen in biological systems139US 5,494,030 ATrustees of Dartmouth College · 1996