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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
4976938 Hydrogen isotope separation utilizing bulk getters Dec. 11, 1990
4962228 Layered divalent metal phosphates containing pendent substituent groups and their preparation Oct. 9, 1990
4915932 Macroaggregates for radiation synovectomy Apr. 10, 1990
4902426 Ion exchange compositions Feb. 20, 1990
4882093 Process and installation for the treatment of solid organic waste contaminated by tritium Nov. 21, 1989
4876073 Radionuclide generator Oct. 24, 1989
4851515 Preparation of .sup.99m Tc radiopharmaceuticals Jul. 25, 1989
4849209 Treatment of arthritis, including rheumatoid arthritis with .sup.166 Holmium radionuclide Jul. 18, 1989
4826666 Method of preparing metal carbides and the like and precursors used in such method May. 2, 1989
4789534 Transition metal carbides and process for making same Dec. 6, 1988
4782231 Standard component .sup.99m Tc elution generator and method Nov. 1, 1988
4705635 Process for enriching and separating oxides of heavy hydrogen isotopes from acid, aqueous solutions or other aqueous streams Nov. 10, 1987
4687644 Process and arrangement for the incremental enrichment of deuterium and/or tritium in a material suitable for the isotope exchange of deuterium and/or tritium with hydrogen Aug. 18, 1987
4686019 Dissolution of PuO.sub.2 or NpO.sub.2 using electrolytically regenerated reagents Aug. 11, 1987
4681727 Process for producing astatine-211 for radiopharmaceutical use Jul. 21, 1987
4673547 Process for separation of hydrogen and/or deuterium and tritium from an inert gas flow and apparatus for effectuation of process in the cooling gas circuit of a gas-cooled nuclear reactor Jun. 16, 1987
4664849 Optical materials from intercalation of polyvalent cations in beta double prime alumina May. 12, 1987
4664869 Method for the simultaneous preparation of Radon-211, Xenon-125, Xenon-123, Astatine-211, Iodine-125 and Iodine-123 May. 12, 1987
4659554 Low-energy process for separation of hydrogen isotopes Apr. 21, 1987
4657747 Recovery of tritium from tritiated molecules Apr. 14, 1987
4643891 Preparation and use of a .sup.195m Au-containing liquid Feb. 17, 1987
4637866 Recovery method of tritium from tritiated water Jan. 20, 1987
4620909 Method for isotope replenishment in an exchange liquid used in a laser induced isotope enrichment process Nov. 4, 1986
4564515 Method for separating at least one heavy isotope from a hydrogen-containing medium Jan. 14, 1986
4563204 Method and apparatus for withdrawing a bottom product from a low-temperature rectifying column Jan. 7, 1986
4533539 Process and arrangement for the incremental enrichment of deuterium and/or tritium in a material suitable for the isotope exchange of deuterium and/or tritium with hydrogen Aug. 6, 1985
4532102 Producing tritium in a homogenous reactor Jul. 30, 1985
4514377 Process for the exchange of hydrogen isotopes between streams of liquid water and gaseous halohydrocarbon and an apparatus therefor Apr. 30, 1985
4511551 Method and composition for the detection of a precancerous or leukemic condition in mammals Apr. 16, 1985
4487670 Process for treating solutions containing tritiated water Dec. 11, 1984
4482479 Process for treating waste gas in reprocessing of used nuclear fuel Nov. 13, 1984
4476100 Method of enhancing selective isotope desorption from metals Oct. 9, 1984
4432892 Process for the safe intermediate and final storage of tritium Feb. 21, 1984
4432955 Process for desorbing fission iodine from nitric acid fuel solution Feb. 21, 1984
4406877 .sup.82 Rb Generating method and eluent Sep. 27, 1983
4400358 Method and adsorbant composition for .sup.82 Rb generation Aug. 23, 1983
4388231 Process for extraction of iodine Jun. 14, 1983
4374762 Process for the removal of tritium from the product solutions obtained by the Purex process Feb. 22, 1983
4372928 Method of separating isotopes from a gas mixture Feb. 8, 1983
4362660 Mercuric iodate precipitation from radioiodine-containing off-gas scrubber solution Dec. 7, 1982
4359368 Deuterium exchange between hydrofluorocarbons and amines Nov. 16, 1982
4333911 Method of preparing a solution of gallium 68 from germanium 68 Jun. 8, 1982
4328193 Process for removing radium from monocalcium phosphate solutions by centrifugation May. 4, 1982
4314986 Method and container for reducing pertechnetate Feb. 9, 1982
4304645 Process for removing helium and other impurities from a mixture containing deuterium and tritium, and a deuterium/tritium mixture when purified in accordance with such a process Dec. 8, 1981
4284472 Method for enhanced control of radioiodine in the production of fission product molybdenum 99 Aug. 18, 1981
4282192 Process for producing a calcium sulfate product containing low amounts of radium Aug. 4, 1981
4280984 Isotope separation Jul. 28, 1981
4280991 Diagnostic compositions Jul. 28, 1981
4280053 Technetium-99m generators Jul. 21, 1981

1 2 3 4

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