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Class 252/301.18 - Heavy metal containing


Subclass of Class 252 - Compositions
Definition: Compositions which contain a metal having a specific gravity
No. of patents: 46
Last issue date: 11/01/2011


1    
NumberTitleIssue Date
8048337Organic memory device using iridium organometallic compound and fabrication method thereof
Disclosed are a composition comprising a mixture of at least one iridium organometallic compound and an electrically conductive polymer, an organic active layer comprising the same, an organic memory device comprising the organic active layer and methods for fabrica...
11/01/2011
7312251Synthesis of stable solutions of rare earth tris (organophosphate) in hydrocarbon solvents
Stable rare earth tris (organophosphate) solutions comprise a rare earth tris (organophosphate) and a hydrocarbon solvent. From about 2% to about 10% rare earth element, preferably from about 3% to about 8%, is present in the solutions. The rare earth tris (organoph...
12/25/2007
7270770Triboluminescent materials and devices
This invention relates to various phosphine oxides and their use in applications which exploit the triboluminescent effect. ...
09/18/2007
7183008Electroluminescent materials
A novel electroluminescent compound which emits blue or blueish purple light is a complex of a lanthanide or actinide and an organic complex e.g. mono(bathophenanthroline) thoriumIV chloride or mono(tripyridyl)yttrium chloride. ...
02/27/2007
7122129Fluorescent substance and fluorescent composition containing the same
The present invention provides a fluorescent substance represented by the following general formula: (A1−xBx)2Si2O7, wherein A is at least one member selected from the group consisting of Gd, Y, Lu and La, B i...
10/17/2006
7087904Positron emission tomography device
This invention is a positron emission tomography (PET) device comprising as a scintillator a perovskite organic/inorganic hybrid compound selected from the group represented by the general formulae: (R1—NR113)2...
08/08/2006
7081365Scintillation proximity test
The invention concerns scintillation proximity assays performed in multiwell plates where a charge coupled device is used to image the wells. Conventional phosphors emit blue light (350–450 nm) which is absorbed by yellow or brown assay components. This problem is...
07/25/2006
7029919Electro-optical device and methods for hybridization and detection
The invention provides an apparatus and method for detection of a target molecule. The apparatus includes a probe labeled with a transition metal-ligand complex that hybridizes with the target to form an initial complex, a metal ion for doping the initial complex an...
04/18/2006
6974703Electro-optical devices and methods for hybridization and detection
The invention provides an apparatus and method for detection of a target molecule. The apparatus includes a probe labeled with a transition metal-ligand complex that hybridizes with the target to form an initial complex, a metal ion for doping the initial complex an...
12/13/2005
6911251Composite scintillator material and method of manufacture
An optically nonisotropic composite material. The composite material includes two materials, a transparent bulk optical material and radiation absorbing or reflecting fibers embedded within the bulk material. The fibers are substantially parallel to one another and ...
06/28/2005
6911551Spiro compounds based on boron or aluminum and the use of the same in the electronics industry
The present invention relates to substituted boron or aluminum spiro compounds and their use in the electronic industry. The compounds of the invention are used as electron transport material, hole blocking material and/or as host material in organic electroluminesc...
06/28/2005
6544442Method of loading organic materials with group III plus lanthanide and actinide elements
Disclosed is a composition of matter comprising a tributyl phosphate complex of a group 3, lanthanide, actinide, or group 13 salt in an organic carrier and a method of making the complex. These materials are suitable for use in solid or liquid organic sci...
04/08/2003
6471888Dual neutron flux/temperature measurement sensor
Simultaneous measurement of neutron flux and temperature is provided by a single sensor which includes a phosphor mixture having two principal constituents. The first constituent is a neutron sensitive Li6 F and the second is a rare-earth activ...
10/29/2002
6410766Emitting materials used for organic EL based on tridentate ligands
A series of emitting materials used for organic EL based on tridentate ligands are characterized as Formula 1, Formula 2 and Formula 3, where: the group O-I-N is a bidentate ligand such as 8-hydroxyquinoline and 2-(o-hydroxyphenyl)-benzoxazole, II, III ar...
06/25/2002
6288229Ruthenium complex having di or tetrapyridophenazine ligand useful for use as luminescent material
A ruthenium (II) complex having a dipyridophenazine or tetrapyridophenazine ligand and being represented by the formula (1) or (2) shown in the specification. Upon absorption of light, the complex emits fluorescence for a longer life time in a protic solv...
09/11/2001
6136233Hydrogen peroxide based ECL
An electrochemiluminescence (ECL)-based assay for the quantitation of classical clinical chemistry analytes, where glucose, ethanol, carbon dioxide, cholesterol, as H2 O2 liberating systems coupled to a tris(bipyridyl)ruthenium(II) R...
10/24/2000
5714089Luminescent metal chelatte labels and means for detection
A chemical moiety is disclosed which comprises a chemical, biochemical, or biological substance attached to one or more electrochemiluminescent organometallic compounds. In a preferred embodiment of the invention the substance is attached to one or more r...
02/03/1998
5658494Fluorescent compounds
Novel compounds obtainable by reacting together an imido-reagent such as diphenylphosphonimido-triphenylphosphorane), or a phosphine oxide such as p-tolyldiphenylphosphine oxide, with a chelate of a transition or lanthanide or actinide metal, such as tris...
08/19/1997
5606638Organic scintillator systems and optical fibers containing polycyclic aromatic compounds
A class of polycyclic aromatic compounds containing at least two fused rings, is used to produce very bright liquid or plastic scintillators. When a member of this class, such as pyrene, is added at high concentration to a liquid or polymeric organic solv...
02/25/1997
5507965Protonic, conductive, electrolytic materials
Protonic, conductive, macromolecular materials comprising a solid complex of anhydrous orthophosphoric acid and polyoxyethylene and also having an antioxidizing agent and/or a thixotropic agent are useful as an electrolyte in electrochromic systems, parti...
04/16/1996
5457186Luminescent lanthanide chelates with decreased non-radiative energy loss
A method of conducting assays for analytes, usually from biological samples, utilizing bioaffinity reagents linked to luminescent lanthanide chelates, which are synthesized so that the non-radiative quenching of the ion luminescence through C--H bond vibr...
10/10/1995
5435937Fluorescent compounds
Novel compounds obtainable by reacting together an imido-reagent such as diphenylphosphonimidotriphenylphosphorane) with a chelate of a transition or lanthanide or actinide metal, such as tris(dibenzoylmethide) europium III, has the property of fluorescin...
07/25/1995
5145750Rubber product identification by tagging
The present invention provides for a method for positive product identification using tagging materials such as barium sulfate, manganese dioxide or mixtures thereof. Such materials may be employed, for example, in the dusting agent used in roofing materi...
09/08/1992
5101015Reagents for an amphetamine-class fluorescence polarization immunoassay
A fluorescence polarization immunoassay (FPIA) for detecting the presence of one or more amphetamine-class analytes in a test sample is provided. The immunoassay uses competition between the analyte and a fluorescently labeled tracer for the binding site ...
03/31/1992
5015861Lead carbonate scintillator materials
Improved radiation detectors containing lead carbonate or basic lead carbonate as the scintillator element are disclosed. Both of these scintillators have been found to provide a balance of good stopping power, high light yield and short decay constant th...
05/14/1991
4965211Fluorometric analysis method
Species-linked diamine triacetic acids of the formula ##STR1## wherein T is an organic species containing at least one amine, hydroxyl, or thiol functional group, L is the residue of at least one of those functional groups and R is a two or more atom...
10/23/1990
4861727Luminescent oxygen sensor based on a lanthanide complex
An oxygen sensor is provided for determination of the partial pressure of oxygen. In one aspect, the invention consists of oxygen-quenchable luminescent lanthanide complexes for an oxygen sensor. The complexes are oxygen-quenchable even though immobilized...
08/29/1989
4837169Polypyridine Fluorescent labels for immunoassay
There are described stable fluorescent labels comprising a complex of Eu+3 and a chelating agent comprising a nucleus which is a triplet sensitizer having a triplet energy greater than that of Eu+3 and at least two heteroatom-contain...
06/06/1989
4713820Thermal lensing-compensated lanthanum beryllate laser
A single crystal of rare-earth-doped lanthanum beryllate, whose crystal orientation is suitably chosen, provides a laser medium whose index of refraction is substantially independent of temperature. A laser using such a crystal as the laser medium display...
12/15/1987
4637988Fluorescent labels for immunoassay
There are described stable fluorescent labels comprising a complex of lanthanide metal and a chelating agent comprising a nucleus which is a triplet sensitizer having a triplet energy greater than that of said lanthanide metal and at least two heteroatom-...
01/20/1987
4620939Scintillation converter for neutron radiography
A scintillation converter for neutron radiography is described, comprising a composition formed of components (A) 100 parts by weight of an olefin rubber made mainly of ethylene and propylene, (B) from 100 to 400 parts by weight of at least one inorganic ...
11/04/1986
4533489Formable light reflective compositions
A light-reflective, flowable and curable composition is described which comprises a resin containing light-reflective solid particles in an amount and of average particle size sufficient to provide the desired light reflectance/transmittance characteristi...
08/06/1985
4432907Diamine acid fluorescent chelates
Species-linked diamine triacetic acids of the formula ##STR1## wherein T is an organic species containing at least one amine, hydroxyl, or thio functional group, L is the residue of at least one of those functional groups and R is a two or more atom ...
02/21/1984
4379070Tin-phosphorus oxyfluoride glass containing aromatic organic compound
A tin-phosphorous oxyfluoride glass in the Sn--P--O--F composition field is used as a supporting matrix for light-responsive polycyclic aromatic hydrocarbons, such as triplet state or lasing dyes. Dye compatibility with the glass is good, as evidenced by ...
04/05/1983
4375423Index-matched phosphor scintillator structures
Scintillator structures are disclosed in which the phosphor is embedded or suspended in an optically transparent matrix which is selected or adjusted to have an index of refraction which is approximately equal to that of the phosphor embedded therein at t...
03/01/1983
4374749Index-matched phosphor scintillator structures
Scintillator structures are disclosed in which the phosphor is embedded or suspended in an optically transparent matrix which is selected or adjusted to have an index of refraction which is approximately equal to that of the phosphor embedded therein at t...
02/22/1983
4365155Scintillator with ZnWO4 single crystal
A scintillator formed of a ZnWO4 single crystal having an absorption coefficient less than or equal to 1.8 cm-1 for the light having a wavelength of 520 nm is disclosed which has a luminescence wavelength of 480 nm and therefore can ...
12/21/1982
4352751Species-linked diamine triacetic acids and their chelates
Species-linked diamine triacetic acids of the formula ##STR1## wherein T is an organic species containing at least one amine, hydroxyl, or thiol functional group, L is the residue of at least one of those functional groups and R is a two or more atom...
10/05/1982
4352186Laser crystal
Improved laser system gain is achieved by using Gadolinium to totally replace the Yttrium in a Lithium Yttrium Fluoride (YLF) host crystal so as to increase the amount of Neodymium which can be doped into the host crystal....
09/28/1982
4316817Index-matched phosphor scintillator structures
Scintillator structures are disclosed in which the phosphor is embedded or suspended in an optically transparent matrix which is selected or adjusted to have an index of refraction which is approximately equal to that of the phosphor embedded therein at t...
02/23/1982
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