CPC Definition - Subclass G21H

Last Updated Version: 2018.05
OBTAINING ENERGY FROM RADIOACTIVE SOURCES; APPLICATIONS OF RADIATION FROM RADIOACTIVE SOURCES, NOT OTHERWISE PROVIDED FOR; UTILISING COSMIC RADIATION (measurement of nuclear or X-radiation G01T; fusion reactors G21B; nuclear reactors G21C; lamps in which a gas filling is excited to luminescence by external corpuscular radiation or by radioactive material structurally associated with the lamp H01J 65/04, H01J 65/06)
Definition statement

This place 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, not otherwise provided for.

Use of effects of cosmic radiation.

References
Limiting references

This place does not cover:

Measurement of nuclear or X-radiation

G01T

Fusion reactors

G21B

Nuclear fission reactors

G21C

Lamps in which a gas filling is excited to luminescence by external corpuscular radiation or by radioactive material structurally associated with the lamp

H01J 65/04, H01J 65/06

Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

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

Applying radioactive material to the body

A61M 37/0069, A61N 5/10

Radiation therapy; therapy using X-rays, gamma rays or particle-irradiation

A61N 5/00, A61N 5/10

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 4/50

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

Informative references

Attention is drawn to the following places, which may be of interest for search:

Preservation of milk or milk preparations in general, of cream, butter, and cheese

A23C 3/00, A23C 13/08, A23C 15/18, A23C 19/097

Introduction of isotopes of elements into organic compounds

C07B 59/00

Techniques for handling particles or ionising radiation not otherwise provided for

G21K 1/00 - G21K 4/00

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

Lasers

H01S 3/00

Special rules of classification

Classification of both important (invention) information and additional information is obligatory.

Arrangements for obtaining electrical energy from radioactive sources, e.g. from radioactive isotopes {, nuclear or atomic batteries}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Photoelectric discharge tubes not involving the ionization of a gas

H01J 40/00

Discharge tubes functioning as thermionic generators

H01J 45/00

Tubes for determining the presence, intensity, density or energy of radiation or particles

H01J 47/00

Thermoelectric devices comprising a junction of dissimilar materials

H01L 35/00

Cells using secondary emission induced by alpha radiation, beta radiation, or gamma radiation
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Photoelectric discharge tubes not involving the ionisation of a gas

H01J 40/00

Discharge tubes functioning as thermionic generators

H01J 45/00

Tubes for determining the presence, intensity, density or energy of radiation or particles

H01J 47/00

Cells wherein radiation is applied to the junction of different semiconductor materials
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Devices of the surface barrier or shallow PN junction detector type, e.g. surface barrier alpha-particle detectors

H01L 31/118

Cells in which radiation ionises a gas in the presence of a junction of two dissimilar metals, i.e. contact potential difference cells
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Electric discharge tubes or discharge lamps

H01J

Cells in which radiation heats a thermoelectric junction or a thermionic converter
Definition statement

This place covers:

Cells in which radiation of disintegration heat heats a thermoelectric junction or a thermionic converter.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Devices where heating occurs from fission reactions

G21C 3/04

Discharge tubes functioning as thermionic generators

H01J 45/00

Thermoelectric devices comprising a junction of dissimilar materials

H01L 35/00

Arrangements for direct conversion of radiation energy from radioactive sources into forms of energy other than electric energy, e.g. {into} light {or mechanic energy}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Lasers

H01S 3/00

Lasers pumped by high energy nuclear particles

H01S 3/0957

Gamma masers

H01S 4/00

in which material is excited to luminesce by the radiation (lamps in which a gas filling or screen or coating is excited to luminesce by radioactive material structurally associated with the lamp  H01J 65/00)
References
Limiting references

This place does not cover:

lamps in which a gas filling or screen or coating is excited to luminesce by radioactive material structurally associated with the lamp

H01J 65/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Luminescent substances containing radioactive material

C09K 11/04

Applications of radiation from radioactive sources or arrangements therefor, not otherwise provided for 
References
References out of a residual place

Examples of places in relation to which this place is residual:

Use of radiation to produce mutations in plants

A01H 1/06

Preserving finished bakery products; improving by irradiation

A21D 15/06

Preservation of meat, sausages, fish, eggs, fruit, vegetables or edible seeds by irradiation causing heating effect

A23B 4/01, A23B 5/01, A23B 7/01, A23B 9/04

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 food or foodstuffs or non-alcoholic beverages 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

Preparations containing radioactive substances for use in therapy or testing in vivo

A61K 51/00

Methods or apparatus using radiation for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses

A61L 2/08

Applying radioactive material to the body

A61M 37/00

Radiation therapy; therapy using X-rays, gamma rays or particle-irradiation

A61N 5/00, A61N 5/10

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 4/50

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

Irradiation devices

G21K 5/00

Gamma ray or X-ray microscopes

G21K 7/00

In cathode ray tubes, charge-storage screens exhibiting internal electrical effects caused by particle radiation

H01J 29/44

Semiconductor devices sensitive to electro-magnetic or corpuscular radiation

H01L 31/00

Lasers using pumping by high energy nuclear particles

H01S 3/0957

Apparatus for generating ions to be introduced into non-enclosed gasses, e.g. into the atmosphere

H01T 23/00

Carrying off electrostatic charges by means of ionising radiation

H05F 3/06

Informative references

Attention is drawn to the following places, which may be of interest for search:

Dairy products, making thereof

A23C

Preservation of milk or milk preparations in general, of cream, butter and cheese

A23C 3/00, A23C 13/08A23C 15/18, A23C 19/097

Organic chemistry, applications of radiation for preparation of organic chemical compounds

C07

Introducing isotopes into organic compounds

C07B 59/00

Measuring

G01

as tracers
References
Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Medicinal preparations containing radioactive substances

A61K 51/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Investigating or analysing biological material

G01N 33/48