US PATENT SUBCLASS 204 / 157.63
.~.~.~ Using ionizing radiation

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

*  DD  PROCESSES AND PRODUCTS {7}
157.15  DF  .~ Processes of treating materials by wave energy {6}
157.6  DF  .~.~ Process or preparing desired organic product containing at least one atom other than carbon and hydrogen {16}
157.63.~.~.~ Using ionizing radiation {2}
157.64  DF  .~.~.~.~> Nitrogen, sulfur, phosphorous or silicon containing product produced
157.65  DF  .~.~.~.~> Carbocyclic ring containing product produced

DEFINITION

Classification: 204/157.63

Using ionizing radiation:

(under subclass 157.6) Subject matter wherein the chemical reaction is claimed or solely disclosed as being induced or effected by ionizing radiation.

(1) Note. Included within the term ionizing radiation are X-rays, gamma rays, nuclear particles like protons, fast neutrons, alpha and beta particles, deuterons, fission fragments and the like, or high speed accelerated electrons (including electron bombardment).

(2) Note. The radiation proper for this subclass may be obtained from various sources. The following is a list of such possible sources, e.g., including natural radioactive materials, which emit alpha, beta and gamma radiation such as radium and its compounds; from nuclear fission by-products including elements having atomic numbers 30 to 63; from materials made radioactive by exposure to neutron radiation such as cobalt-60, cesium-37, sodium-24, manganese-56. gadolinium-72, lanthanum-140, etc.; or from operating nuclear reactors including particles maybe brought to high energy

levels by acceleration in devices like cathode ray tubes, Van de Graff generators, resonant cavity accelerators, betatrons, synchrotrons, cyclotrons, and electron accelerators suitable accelerated electrons may also be obtained as beta radiation from radioactive isotopes, such as C[supscrpt]14[end supscrpt], P[supscrpt]32[end supscrpt], Sr[supscrpt]90[end supscrpt] and tritium. High energy X-ray machines are a source of X-rays as are the bombardments of metal targets, such as gold or tungsten, with high energy electrons.

(3) Note. This area provides for a specific wave energy process, i.e., ionizing radiation. In order for a wave energy process to be classified herein as an original, there must be a claim to the noted process or the total disclosure in the patent must be directed to the specific process. The wave energy process in the claim need not be limited to the provided specific process if the claim specifically recites the process of this subclass. Processes not claimed or solely disclosed are classified below on some other aspect.

SEE OR SEARCH THIS CLASS, SUBCLASS:

158.21, for processes of purifying an organic compound by removing impurities therefrom by wave energy wherein said wave energy induces a reaction to occur only amongst the considered material.