A61B 8/481
Involving the use of contrast agents
Official title: {involving the use of contrast agents, e.g. microbubbles introduced into the bloodstream}
A61B8/481 (Involving the use of contrast agents) appears on 1,119 US grants and 1,498 published applications in this corpus.
Search patents in A61B- Granted patents
- 1,119
- Published applications
- 1,498
- Assignees
- 501
- Inventors
- 2,286
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 17 | 0 |
| 1999 | 11 | 0 |
| 2000 | 20 | 0 |
| 2001 | 30 | 17 |
| 2002 | 45 | 32 |
| 2003 | 41 | 35 |
| 2004 | 26 | 44 |
| 2005 | 19 | 45 |
| 2006 | 8 | 29 |
| 2007 | 10 | 49 |
| 2008 | 7 | 53 |
| 2009 | 13 | 51 |
| 2010 | 29 | 45 |
| 2011 | 27 | 27 |
| 2012 | 39 | 65 |
| 2013 | 43 | 63 |
| 2014 | 25 | 71 |
| 2015 | 45 | 82 |
| 2016 | 47 | 88 |
| 2017 | 52 | 64 |
| 2018 | 43 | 68 |
| 2019 | 64 | 90 |
| 2020 | 62 | 84 |
| 2021 | 58 | 74 |
| 2022 | 65 | 81 |
| 2023 | 68 | 68 |
| 2024 | 66 | 65 |
| 2025 | 49 | 53 |
| 2026 | 51 | 55 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Focused ultrasound treatment system based on ultrasound imaging8 Sep 2026US 12,728,294 B2Fudan University
- Ultrasound contrast imaging method, apparatus, system and device, and storage medium8 Oct 2026US 2026/0306063 A1Sonoscape Medical Corp.
- Contrast and b-mode combination for strain analysis in medical ultrasound imaging1 Oct 2026US 2026/0294385 A1Siemens Medical Solutions USA, Inc.
- Ultrasound imaging apparatus and operating method for the same17 Sep 2026US 2026/0272405 A1Samsung Medison Co., Ltd.
- Bioresorbable tags for monitoring deep tissue homeostasis10 Sep 2026US 2026/0263188 A1Northwestern University
- Processing a contrast enhanced ultrasound image of a lesion3 Sep 2026US 2026/0256452 A1Koninklijke Philips N. V.
Most cited
By later US patents
- Systems and methods for visualizing interior tissue regions using expandable imaging structures720US 5,848,969 AEP Technologies, Inc. · 1998
- Noise-free real time ultrasonic imaging of a treatment site undergoing high intensity focused ultrasound therapy667US 6,425,867 B1University of Washington · 2002
- Methods and apparatus for performing diagnostic and therapeutic ultrasound simultaneously662US 5,558,092 AImaRx Pharmaceutical Corp. · 1996
- In vivo ultrasonic system with angioplasty and ultrasonic contrast imaging647US 5,163,421 AAngiosonics Inc. · 1992
- Patient specific dosing contrast delivery systems and methods578US 5,840,026 AMedrad, Inc. · 1998