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Class Information
Number: 423/249
Name: Chemistry of inorganic compounds > Radioactive (at. no. 84+ or radioactive isotope of another element)
Description: Products , or processes for making such products, which exhibit spontaneous nuclear disintegration with emission of radioactive particles and which comprises (1) the compound of an element which is naturally unstable and has an atomic number of at least 84, (2) compound of an element which has been treated to render an isotope thereof radioactive or (3) a nonmetallic element which is naturally or has been treated to make it or an isotope thereof radioactive; see Glossary.

Sub-classes under this class:

Class Number Class Name Patents
423/252 Thorium compound 53
423/250 Transuranium compound 44
423/253 Uranium compound 105

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8679377 Gamma radiation source Mar. 25, 2014
8641903 Method for the preparation of reactive [18] F fluoride Feb. 4, 2014
8574523 Advanced dry head-end reprocessing of light water reactor spent nuclear fuel Nov. 5, 2013
8440058 Method for concentrating nitrogen isotope May. 14, 2013
8383021 Mixed-layered bismuth-oxygen-iodine materials for capture and waste disposal of radioactive iodine Feb. 26, 2013
8357316 Gamma radiation source Jan. 22, 2013
8329122 Method for production of an isotopically enriched compound Dec. 11, 2012
8262950 Low sintering temperature glass waste forms for sequestering radioactive iodine Sep. 11, 2012
8236277 Process for producing nanoparticles Aug. 7, 2012
8126104 Medical radioisotopes and methods for producing the same Feb. 28, 2012
8093178 Catalyst for reducing carbon monoxide concentration Jan. 10, 2012
7867471 Process for preparing advanced ceramic powders using onium dicarboxylates Jan. 11, 2011
7736610 Actinium radioisotope products of enhanced purity Jun. 15, 2010
7700926 Systems and methods for radioisotope generation Apr. 20, 2010
7687025 Isotopic lightening Mar. 30, 2010
7622090 Method for separating uranium (VI) from actinides(IV) and/or actinides (VI) and its uses Nov. 24, 2009
7578982 Radioisotope TI-201 production process Aug. 25, 2009
7569192 System for recovery of daughter isotopes from a source material Aug. 4, 2009
7531150 Method of separating and purifying cesium-131 from barium carbonate May. 12, 2009
7517508 Method of separating and purifying Yttrium-90 from Strontium-90 Apr. 14, 2009
7510691 Method for improving the recovery of cesium-131 from barium carbonate Mar. 31, 2009
7479261 Method of separating and purifying Cesium-131 from Barium nitrate Jan. 20, 2009
7476377 Rubidium-82 generator based on sodium nonatitanate support, and improved separation methods for the recovery of strontium-82 from irradiated targets Jan. 13, 2009
7394074 Protective housing for radionuclide generator and combination thereof Jul. 1, 2008
7357910 Method for producing metal oxide nanoparticles Apr. 15, 2008
7344688 Process for treating alkali metals charged with tritium or components contaminated with alkali metals charged with tritium Mar. 18, 2008
7323153 Reprocessing method by fluoride volatility process using fractional distillation Jan. 29, 2008
7309473 Method for sulphurizing a UO.sub.2 powder and method for making nuclear fuel pellets based on UO.sub.2 or mixed oxide (U,Pu)O.sub.2 oxide with added sulphur Dec. 18, 2007
7291317 Method for synthesizing extremely high-temperature melting materials Nov. 6, 2007
7282192 Mixed metal oxide containing sulfur Oct. 16, 2007
7244403 Purification of Lutetium 177 Jul. 17, 2007
7217402 Apparatus and method for making metal chloride salt product May. 15, 2007
7214318 Method for separation of actinide elements May. 8, 2007
7211231 Ion exchange materials for use in a .sup.213Bi generator May. 1, 2007
7208129 Reprocessing method by fluoride volatility process using solid-gas separation Apr. 24, 2007
7195745 Method of preparing a product based on phosphate of thorium and/or actinide(s) Mar. 27, 2007
7087206 Multicolumn selectivity inversion generator for production of high purity actinium for use in therapeutic nuclear medicine Aug. 8, 2006
6984369 Process for making surfactant capped metal oxide nanocrystals, and products produced by the process Jan. 10, 2006
6979431 Method for labelling technetium or rhenium using borohydride exchange resin Dec. 27, 2005
6967011 Method for synthesizing extremely high-temperature melting materials Nov. 22, 2005
6951634 Process for recovery of daughter isotopes from a source material Oct. 4, 2005
6908598 Rubidlum-82 generator based on sodium nonatitanate support, and improved separation methods for the recovery of strontium-82 from irradiated targets Jun. 21, 2005
6830738 Low-temperature synthesis of actinide tetraborides by solid-state metathesis reactions Dec. 14, 2004
6787042 Automated radionuclide separation system and method Sep. 7, 2004
6773686 Process for the purification and concentration of radiodide isotopes Aug. 10, 2004
6716353 Method for preparing high specific activity 177Lu Apr. 6, 2004
6638490 Production of high specific activity copper-67 Oct. 28, 2003
6613303 Highly radioactive miniaturized ceremic strontium 90 radiation sources and method for the production thereof Sep. 2, 2003
6603127 Bismuth-213 generator and uses thereof Aug. 5, 2003
6485695 Method and apparatus for preparing Bi-213 for human therapeutic use Nov. 26, 2002

1 2 3 4

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