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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
4279875 Method of releasing fission gases from irradiated fuel Jul. 21, 1981
4276267 Hot cell purification of strontium-82, 85 and other isotopes from proton irradiated molybdenum Jun. 30, 1981
4275045 Method of extraction, trapping and storage of radioactive iodine contained in irradiated nuclear fuels Jun. 23, 1981
4264468 Generator for gallium-68 and compositions obtained therefrom Apr. 28, 1981
4252668 Process for preparation of potassium-38 Feb. 24, 1981
4248730 Evaporation-based Ge/.sup.68 Ga Separation Feb. 3, 1981
4229317 Method for immobilizing radioactive iodine Oct. 21, 1980
4224303 Signalling particles for introduction into blood flowing through a vessel of interest Sep. 23, 1980
4217332 Process for exchanging hydrogen isotopes between gaseous hydrogen and water Aug. 12, 1980
4206073 Process for separating volatile, radioactive substances obtained in the reprocessing of nuclear fuel Jun. 3, 1980
4191626 Apparatus for finishing and upgrading of heavy water Mar. 4, 1980
4190461 Method for removing metallic seeds from nylon tubing used in interstitial brachytherapy Feb. 26, 1980
4190515 Apparatus for removal and recovery of tritium from light and heavy water Feb. 26, 1980
4180551 Modified zirconium phosphates Dec. 25, 1979
4180476 Process for the extraction of fission products Dec. 25, 1979
4178350 Removal of tritium and tritium-containing compounds from a gaseous stream Dec. 11, 1979
4172886 Carbohydrate conversion to carbon monoxide and synthetic coal Oct. 30, 1979
4158639 Method of storing gases Jun. 19, 1979
4129518 Method for conditioning metallic waste shells made of zirconium or zirconium alloys Dec. 12, 1978
4123497 Purification of Technetium-99m pertechnetate solutions Oct. 31, 1978
4120781 Process for reducing the level of radioactivity of a stream of light hydrocarbons Oct. 17, 1978
4092265 Process for preventing ecological contamination due to radioactive ruthenium, molybdenum or technetium May. 30, 1978
4085061 Tritiated water treatment process Apr. 18, 1978
4082840 Bone seeking technetium 99m complex Apr. 4, 1978
4080429 Method of and apparatus for separating krypton from radioactive waste gases Mar. 21, 1978
4057615 Method of tagging excipients with 99M technetium Nov. 8, 1977
4022705 Gas generating compositions May. 10, 1977
4018561 Apparatus for extraction of polonium - 210 from irradiated bismuth using molten caustic Apr. 19, 1977
4017583 Volitilization process for separation of molybdenum-99 from irradiated uranium Apr. 12, 1977
4016249 Bone seeking technetium 99m complex Apr. 5, 1977
4011307 Production of .sup.203 Pb-tris-hydroxymethyl amino methane Mar. 8, 1977
4011289 Manufacture of microglobules Mar. 8, 1977
3989799 Divalent metal salts of dodecametal triaconta carbonyls Nov. 2, 1976
3989484 Separation of isotopes by cyclical processes Nov. 2, 1976
3987157 Technetium 99-M labeled radio-diagnostic agents employing stannous tartrate and method of preparation Oct. 19, 1976
3984531 Technetium-99m-tin-monofluorophosphate complex Oct. 5, 1976
3983219 High purity polonium recovery Sep. 28, 1976
3974259 Monovalent metal salts of dodecametal triaconta carbonyls Aug. 10, 1976
3966547 Method of producing .sup.123 I Jun. 29, 1976
3957945 Chemical isolation of .sup.82 Sr from proton-irradiated Mo targets May. 18, 1976
3957597 Process for recovering tritium from molten lithium metal May. 18, 1976
3954654 Treatment of irradiated nuclear fuel May. 4, 1976
3953567 .sup.82 Sr-.sup.82 Rb Radioisotope generator Apr. 27, 1976
3944466 Reducing concentration of gases in nuclear reactor Mar. 16, 1976
3940471 Removal of radon from hydrocarbon streams Feb. 24, 1976
3931396 Method of preparation of a composition having a base of 99.sup.m technetium for diagnosis by scintigraphy Jan. 6, 1976

1 2 3 4

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