Cooperative Patent Classification


CPC Definition - Subclass F21L

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Last Updated Version: 2017.02
LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
Definition statement

This place covers:

  • Lighting devices or systems of lighting devices which are specially adapted to be carried, e.g. by hand, or otherwise transported from place to place, e.g. on wheeled supports, in order to provide illumination where required. The light sources of the lighting devices may be either electrically powered (e.g. by electric batteries, electric cells, electric generators or cables for electric mains connection) or non-electrically powered (e.g. by combustion or daylight).
  • Details and components specially adapted to be used for carrying or transporting lighting devices or systems of lighting devices.
Relationships with other classification places

The borderline between subclasses F21L and F21S is defined by the words "portable" and "fixed", not by "movable" and "non-movable". For example, lighting devices or systems used in the operation of vehicles, e.g. headlights, which are fixed on the vehicle and move together with the vehicle when it is travelling are considered to be non-portable, since they are components of the vehicle and fixed relative to the remainder of the vehicle at a permanent location. Such lighting devices are classified in subclass F21S. Lighting devices transported by a vehicle between locations and used for lighting purposes not related to the operation of the vehicle are classified in F21L.

Functional features or details of lighting devices or systems are classified in subclass F21V.

Structural combinations of lighting devices with other articles are classified in F21V 33/00, unless specifically provided for in this subclass or elsewhere in the CPC.

Light sources per se are covered in places indicated in the section "Informative references".

In this subclass, it is desirable to add the indexing codes of subclass F21W in order to indicate the uses or applications of lighting devices, and of F21Y in order to indicate the form of the light sources of lighting devices.

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:

Light pointers

Flash units for photography

Transportable traffic lights

Informative references

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

Arrangement or adaptation of portable emergency signal devices on vehicles to be placed on roadways or vehicles

Candles

Incandescent bodies heated by combustion. e.g. mantles

Non-electric light sources using luminescence

Light sources using electrochemiluminescence

Light sources using charges of combustible material, e.g. illuminating flash devices

Light sources using semiconductor devices as light generating elements, e.g. using light-emitting diodes [LED] or lasers

Light sources not otherwise provided for

Devices or systems intended for fixed installation, e.g. vehicle lighting, or for use essentially at a permanent location

Lighting devices intended to be free standing, e.g. table lamp or floor lamp

Non-electric lighting devices intended to be free-standing, e.g. table lamp, floor lamp

Details of portable lighting devices

Structural combinations of lighting devices with other articles, not otherwise provided for

Candle holders

Burners

Fireworks

Electric discharge tubes or discharge lamps

Electric incandescent lamps

Semiconductor devices specially adapted for light emission

Organic semiconductor devices specially adapted for light emission

Fastening electric light sources solely by the coupling device

Masers, lasers

Electric arc lamps

Electroluminescent light sources

Electric light sources using a combination of different types of light generation

Special rules of classification

Non-electric lighting devices are classified in groups F21L 17/00 - F21L 26/00 only if a special adaptation related to the use of a non-electric light source is of interest. If there is no such special adaptation, classification is made in a relevant general place. In this subclass, it is desirable to add the Indexing Codes of subclasses F21W and F21Y.

Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

Light source

The entity (e.g. light bulb, fluorescent tube, gas mantle or combustible charge) that generates light for a lighting device.

Systems of lighting devices (systems employing both electric and non-electric light sources or exchangeable light sources F21L 27/00)
Definition statement

This place covers:

Set of plurality of identical portable lighting devices.

Ex.: US2006262525

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References
Limiting references

This place does not cover:

Systems employing lighting devices with a built-in power supply, the lighting devices not being "portable"

Informative references

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

Systems employing both electric and non-electric light sources or exchangeable light sources

Electric lighting devices with self-contained electric batteries or cells
Definition statement

This place covers:

Electrical portable lighting devices being self-powered

References
Limiting references

This place does not cover:

Lighting devices with a built-in power supply not being "portable"

{the device being a pocket lamp (F21L 4/022, F21L 4/045, F21L 4/085 take precedence)}
Definition statement

This place covers:

Ex.: US1315457

Flat type self-contained or battery-operated portable electric light

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Ex.: US2010315808

Torch

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Ex.: US2010220465

squeeze-activated flashlight

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References
Limiting references

This place does not cover:

Pocket lamps characterised by the provision of two or more light sources

Pocket lamps characterised by the provision of a light source housing portion adjustably fixed to the remainder of the device

Pocket lamps characterised by means for in situ recharging of the batteries or cells

Synonyms and Keywords

In patent documents, the following words/expressions are often used as synonyms:

  • "flashlight", "pocket lamp" and "torch"
{the light sources being of different shape or type}
Special rules of classification

In this subclass, it is desirable to add the Indexing Codes of subclasses F21Y 2113/20

{the light sources being a LED}
Definition statement

This place covers:

Pocket lamp, the light emitter of which being one or more LED

Ex.: US2005007777

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Ex.: US2007133199

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Special rules of classification

In this subclass, it is desirable to add the Indexing Codes F21Y 2101/00

characterised by the provision of a light source housing portion adjustably fixed to the remainder of the device
Definition statement

This place covers:

Portable lighting device having a head portion mechanically attached to the body part and adjustably attached to it.

Ex.: US2008225518

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References
Limiting references

This place does not cover:

Head portion attached to body part by means of flexible connecting sheath comprising electrical wires

Informative references

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

Head portion of a lighting device being adjustable

with the light source coupled to the remainder of the device solely by cable
Definition statement

This place covers:

For example, head portion attached to body part by means of flexible connecting sheath comprising electrical wires

Ex.: EP2078894

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References
Limiting references

This place does not cover:

Portable lighting device with a light source housing portion adjustably fixed to the remainder of the device

characterised by means for in situ recharging of the batteries or cells
Definition statement

This place covers:

Portable lighting device provided with connectors to connect the device to external power supply in order to recharge the batteries, e.g. with built-in accumulators

Portable lighting device provided with accumulators (not shaped like conventional batteries) that can be dismounted in order to be recharged on an external recharging base

Portable lighting devices with solar cells integrated to the body of the lamp

References
Limiting references

This place does not cover:

Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Electric lighting devices with built-in electric generators (with solar cells F21L 4/00)
References
Limiting references

This place does not cover:

Electric lighting devices with solar cells

with mechanical drive, e.g. spring
Definition statement

This place covers:

Ex.: GB2408317

Flashlight having manual charging device

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by reciprocating pusher actuated by hand
Definition statement

This place covers:

Ex.: EP1450478

Electric power device for portable device with a piezo-converter

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Ex.: WO0247056

Portable signal light with a self-generator

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capable of hand-held use, e.g. inspection lamps
Definition statement

This place covers:

Ex.: US2010061111

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Ex.: US2002097583

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{having two or more, or different light sources}
Special rules of classification

In this subclass, it is desirable to add the appropriate Indexing Codes of subclasses F21Y 2113/00

{having a linear light source}
Special rules of classification

In this subclass, it is desirable to add the appropriate Indexing Codes of subclasses F21Y 2103/00

carried on wheeled supports
Definition statement

This place covers:

Ex.: US2009225536

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Ex.: WO2006047836

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Ex.: US5418701

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References
Informative references

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

Projector or searchlight on land vehicles

{concerned with light emission or distribution}
References
Informative references

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

Refractors for light sources applied to portable lighting devices

Reflectors for light sources for portable lighting devices

Combination of reflectors and refractors for portable lighting devices

Changing the characteristics or the distribution of the light emitted by adjustment of light sources in portable lighting devices

Changing the characteristics or the distribution of the light emitted by adjustment of light sources in portable lighting devices

Changing the characteristics or the distribution of the light emitted by adjustment of reflectors in portable lighting devices

Changing the characteristics or the distribution of the light emitted by adjustment of refractors in portable lighting devices

Special rules of classification

F21L 15/02 is not used for classification, the subclass F21V is used instead

{Arrangements of coloured filters or screens}
References
Informative references

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

Light filters; selection of luminescent materials for light screens for producing coloured light for portable lighting devices

Changing the characteristics or the distribution of the light emitted by adjustment of screens in portable lighting devices

Special rules of classification

F21L 15/04 is not used for classification, the subclass F21V is used instead

{concerned with the fitting}
References
Informative references

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

Battery containers for portable lighting devices

Arrangements of switches in or on portable lighting devices

Special rules of classification

F21L 15/06 is not used for classification, the subclass F21V is used instead

{Supporting and suspending elements}
References
Informative references

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

Supporting, suspending, or attaching arrangements lighting devices; hand grips

Special rules of classification

F21L 15/08 is not used for classification, the subclass F21V is used instead

{without arrangements for adjustment}
Special rules of classification

F21L 15/10 is not used for classification, the subclass F21V is used instead

{Clips; Clamps; Head fittings (for medical purposes A61B 1/06)}
References
Limiting references

This place does not cover:

Head fittings for medical purposes

Informative references

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

Supporting, suspending, or attaching arrangements for portable lighting devices: Head fittings

Supporting, suspending, or attaching arrangements for portable lighting devices: Clips, clamps

Special rules of classification

F21L 15/14 is not used for classification, the subclass F21V is used instead

Lanterns, e.g. hurricane lamps or candle lamps
References
Informative references

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

Candle holders

{Fastening or lifting of the lamp glass (fastening of component parts of lighting devices F21V 17/00)}
References
Limiting references

This place does not cover:

Fastening of component parts of the lighting devices

{Special adaptation for protection against draughts (in lighting devices employing combustion other than lanterns F21V 37/02)}
References
Limiting references

This place does not cover:

In lighting devices employing combustion other than lanterns