US5010191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imaging agents for in vivo magnetic resonance and scintigraphic imaging
Assignee: CALIORNIA 2199 ADDISON STREET BERKELEY CALIFORNIA 94720, University of, Regents of
•
Filing: 1985-08-19
•
Granted: 1991-04-23
•
Expires: 2005-08-19
Abstract
Abstract Methods are provided for in vivo magnetic resonance imaging and/or scintigraphic imaging of a subject using chelated transition metal and lanthanide metal complexes. Novel ligands for these complexes are provided.
Inventors
- 👤 Barry L. Engelstad
- 👤 Kenneth N. Raymond
- 👤 John P. Huberty
- 👤 David L. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:59
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/02; C07F15/025; A; A61; A61K; A61K49/00; A61K49/06; A61K49/08; A61K49/10; A61K49/101; A61K49/103; A61K51/00; A61K51/02; A61K51/04; A61K51/0474; A61K51/0478; C07D; C07D241/00; C07D241/02; C07D241/06; C07D241/08; C07F5/00; C07F5/003; A61K2123/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
51 words
A metal complex comprising a metal ion complexed with a ligand of the Formula VI: ##STR16## wherein R 10 and R 11 are independently alkyl of 1-6 carbon atoms, aryl of 5 to 20 carbon atoms, or OR 12 , wherein R 12 is hydrogen or alkyl of 1-6 carbon atoms.
Claim 2
Dependent Claim
51 words
A metal complex comprising a metal ion complexed with a ligand of the Formula VI: ##STR16## wherein R 10 and R 11 are independently alkyl of 1-6 carbon atoms, aryl of 5 to 20 carbon atoms, or OR 12 , wherein R 12 is hydrogen or alkyl of 1-6 carbon atoms.
Claim 3
Dependent Claim
19 words
A complex according to claim 1 wherein the metal ion of said complex is iron, gadolinium, manganese or chromium.
References Cited (Backward Citations)
GB723317A
Cited
GB727465A
Cited
US3901890A
Cited
US4017596A
Cited
US4316883A
Cited
US4313926A
Cited
US4318898A
Cited
US4418208A
Cited
AU8633082A
Cited
US4647447A
Cited
US4472509A
Cited
US4587240A
Cited
US4666927A
Cited
US4698431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-22 | 1994-10-22 | 1995-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-22 | 1998-10-22 | 1999-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-22 | 2002-10-22 | 2003-04-23 | $7700.00 | Window Closed / Lapsed |