G01R 33/34046
Volume type coils
Official title: {Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils}
G01R33/34046 (Volume type coils) appears on 1,290 US grants and 1,095 published applications in this corpus.
Search patents in G01R- Granted patents
- 1,290
- Published applications
- 1,095
- Assignees
- 396
- Inventors
- 1,899
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 10 | 0 |
| 1987 | 20 | 0 |
| 1988 | 25 | 0 |
| 1989 | 20 | 0 |
| 1990 | 14 | 0 |
| 1991 | 13 | 0 |
| 1992 | 10 | 0 |
| 1993 | 22 | 0 |
| 1994 | 25 | 0 |
| 1995 | 19 | 0 |
| 1996 | 26 | 0 |
| 1997 | 26 | 0 |
| 1998 | 7 | 0 |
| 1999 | 12 | 0 |
| 2000 | 28 | 0 |
| 2001 | 24 | 6 |
| 2002 | 30 | 28 |
| 2003 | 30 | 33 |
| 2004 | 43 | 40 |
| 2005 | 28 | 45 |
| 2006 | 38 | 50 |
| 2007 | 44 | 50 |
| 2008 | 40 | 73 |
| 2009 | 50 | 73 |
| 2010 | 50 | 60 |
| 2011 | 51 | 29 |
| 2012 | 44 | 46 |
| 2013 | 28 | 54 |
| 2014 | 31 | 32 |
| 2015 | 23 | 50 |
| 2016 | 31 | 56 |
| 2017 | 53 | 51 |
| 2018 | 42 | 53 |
| 2019 | 67 | 56 |
| 2020 | 64 | 35 |
| 2021 | 45 | 43 |
| 2022 | 41 | 36 |
| 2023 | 32 | 30 |
| 2024 | 29 | 28 |
| 2025 | 32 | 26 |
| 2026 | 10 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Birdcage resonator for high resolution NMR applications6 Oct 2026US 12,754,264 B2Quad Systems Corporation
- Coil, coil assembly and method22 Sep 2026US 12,742,840 B2Forschungszentrum Julich GmbH
- Radio frequency RF transmit coil for a magnetic resonance imaging system and magnetic resonance imaging system comprising the coil22 Sep 2026US 12,742,841 B2Koninklijke Philips N. V.
- Half driving mode for degenerate birdcage coils and ladder coils28 Jul 2026US 12,693,356 B2Quality Electrodynamics, LLC
- Magnetic resonance multi-core radio frequency coil device and control method, and magnetic resonance imaging system9 Jun 2026US 12,650,479 B2Shenzhen Institutes of Advanced Technology
- Blanket-type coil unit and coil system1 Oct 2026US 2026/0299059 A1FUJIFILM Corporation
- Mri rf coil comprising a multi-element channel structure and method for using the same17 Sep 2026US 2026/0276762 A1Quality Electrodynamics, LLC
- Dual resonator structure for nuclear magnetic resonance (nmr) spectroscopy3 Sep 2026US 2026/0259287 A1Phoenix NMR
- Radio frequency coil methods and apparatus27 Aug 2026US 2026/0248457 A1Hyperfine Operations, Inc.
- Volume coil for a magnetic resonance imaging system6 Aug 2026US 2026/0227471 A1Koninklijke Philips N. V.
Most cited
By later US patents
- Magnetic resonance imaging transseptal needle antenna218US 6,606,513 B2Surgi-Vision, Inc. · 2003
- Radio frequency coil for open magnetic resonance imaging system194US 6,437,567 B1General Electric Company · 2002
- Head holder for magnetic resonance imaging/spectroscopy system165US 5,388,580 AThe United States of America as represented by the Department of Health and Human Services · 1995
- Stent and MR imaging process for the imaging and the determination of the position of a stent164US 6,280,385 B1Simag GmbH · 2001
- Resonator system161US 7,193,418 B2Bruker BioSpin GmbH · 2007