(under subclass 157.15) Subject matter involving chemical processes which separate isotopic species from materials containing differing isotopes; or the enrichment of a material in a particular isotope; or the production of an isotopic species; all of said processes brought about by wave energy.
(1) Note. Examples of patents in this subclass are (a) processes for increasing the concentration of deuterium relative to hydrogen in a fluorhydrocarbon; and (b) processes of producing C[supscrpt]13[end supscrpt] by decomposing C3H6, said C3H6 containing C[supscrpt]12[end supscrpt] and C[supscrpt]13[end supscrpt] by irradiating C3H6.
(2) Note. "Enrichment of an isotopic species" refers to increasing the isotope concentration by an exchange process to a level greater than that existing before the exchange.
