IPC Definitions - January 01, 2012
G21H - Definition
This subclass covers:
Arrangements for obtaining electrical energy from radioactive sources, e.g. from radioactive isotopes;
Arrangements for direct conversion of radiation energy from radioactive sources into forms of energy other than electrical energy;
Applications of radiation from radioactive sources or arrangements therefor;
Use of effects of cosmic radiation.
References relevant to classification in this subclass
This subclass does not cover:
Fusion reactors | G21B |
Nuclear reactors | G21C |
Techniques for handling particles or electromagnetic radiation not otherwise provided for; irradiation devices, gamma- or X-ray microscopes | G21K |
Electric discharge tubes or discharge lamps | H01J |
Apparatus for generating ions to be introduced into non-enclosed gasses, e.g. into the atmosphere | H01T 23/00 |
Use of radiation to produce mutation in plants | A01H 1/06 |
Preservation of meat, sausages, fish, eggs, fruit, vegetables or edible seeds by irradiation without heating effect | A23B 4/015, A23B 5/015, A23B 7/015, A23B 9/06 |
Preservation of milk or milk preparations by irradiation | A23C 3/07 |
Preservation of non-alcoholic beverages or foodstuffs by irradiation without heating | A23L 2/50, A23L 3/26 |
Medicinal preparations obtained by treating materials with wave energy or particle radiation | A61K 41/00 |
Methods or apparatus using radiation for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses | A61L 2/08 |
Radiation therapy; therapy using X-rays, gamma rays or particle-irradiation | A61N 5/00, A61N 5/10 |
Applying radioactive material to the body | A61M 36/00 |
Direct application of radiation to physical, chemical or physico-chemical processes in general | B01J 19/08 |
Use of radiation for separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect | B03C 3/38 |
Use of radiation for pre-treatment of surfaces to which liquids or other fluent materials are to be applied, or after-treatment of applied coatings | B05D 3/06 |
Use of radiation in the working of plastics; after-treatment of articles without altering their shape; apparatus therefor | B29C 71/04 |
Railway trackside devices actuated by radiation and controlled by interaction with a vehicle or train | B61L 1/10 |
Railway trackside devices using radiation to control devices on a vehicle or train | B61L 3/06 |
Polymerisation initiated by wave energy or particle radiation; in addition polymers | C08F 2/46, C08F 2/54, C08G 2/02 |
Processes for treating or compounding macromolecular substances by wave energy or particle radiation | C08J 3/28 |
Chemical treatment or coating of shaped articles made of macromolecular substances using wave energy or particle radiation | C08J 7/18 |
Use of radiation for cracking of hydrocarbon oils | C10G 15/10, C10G 32/04 |
Use of radiation for reforming naphtha | C10G 35/16 |
Use of radiation for pasteurisation, sterilisation, preservation, purification, clarification or ageing of alcoholic beverages | C12H 1/06, C12H 1/16 |
Use of radiation for bleaching fibres, threads, yarns, fabrics, feathers, or made-up fibrous goods, leather or furs | D06L 3/04 |
Measuring angles, areas, length, thickness or similar dimensions, or irregularities of surfaces or contours, using wave or particle radiation | G01B 15/00 |
Transducers not specially adapted for a specific variable using wave or particle radiation derived from a radioactive source | G01D 5/50, G01D 5/62 |
Investigating fluid tightness of structures using radioactive material | G01M 3/20 |
Investigating or analysing materials by the use of wave or particle radiation | G01N 23/00 |
Investigating or analysing materials through the ionisation of gases, using wave or particle radiation to ionise a gas | G01N 27/64 |
Chemical analysis of biological material; immunoassay or bio-specific binding assays involving radioactive-labelled substances | G01N 33/534, G01N 33/60 |
Geophysics; prospecting or detecting using primary nuclear radiation sources | G01V 5/08 |
Fire alarms or alarms responsive to explosion, actuated by the presence of smoke or gas detected by an ionisation chamber | G08B 17/11 |
Carrying off electrostatic charges by means of ionising radiation | H05F 3/06 |
Attention is drawn to the following places, which may be of interest for search:
Measurement of nuclear or X-radiation | G01T |
Particle spectrometer ion sources or ion guns using particle bombardment, e.g. ionisation chambers | H01J 49/14 |
Semiconductor devices sensitive to electromagnetic or corpuscular radiation | H01L 31/00 |