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CPC field-specific training

A61K 8, A61Q, A61K 2800:

Field-specific cosmetics or similar toilet preparations

Sylvie Perrone Dunet July 2019 Examiner, European Patent Office

European Patent Office 2

Table of contents

A61K 8

A61Q

A61K 2800

Introduction

Overall structure

What and where to classify

Specific to our field

Specific topics

Neighbouring fields


Introduction

The aim of classification

Retrieval of technical subject-matter

(IPC-Guide VIII.75.)

When classifying, keep in mind how a

search examiner searches,

i.e. what is useful for search and what is not.


Introduction

The main kinds of search

Text-feature search

i.e. a search for written features, mainly the examples

No figure-feature search

When flipping through documents, in A61K 8 or A61Q,

the search examiner often only looks at the claims and

the examples, i.e. classification of the examples is often

more important than classification of the wording of broad

and vague claims.


Introduction

Where to find …

CPC classification scheme and definitions of

A61K 8, A61Q, A61K 2800

www.cpcinfo.org (look at tables)

https://www.cooperativepatentclassification.org/cpc

SchemeAndDefinitions/table.html

https://worldwide.espacenet.com/classification?

locale=en_EP

http://www.cpcinfo.org/

https://www.cooperativepatentclassification.org/cpcSchemeAndDefinitions/table.html




https://worldwide.espacenet.com/classification?locale=en_EP






Introduction

Where to find …

Espacenet.com

Classification Search


Table of contents

Introduction

Overall structure



Specific topics

Neighbouring fields


Overall structure

A61K 8


Overall structure

A61Q

10 sub-groups for the use


Overall structure

A61K 2800


Table of contents

Introduction

Overall structure



Specific topics

Neighbouring fields



Characterisation of a patent application

with classification

What Essential features of the invention :

compounds (or mixtures) which make the invention

No distinction between active ingredients and carriers

The invention information is classified :

claimed subject-matter which has been really disclosed

(examples). If only generic terms in the claims, then the

concrete compounds used in example are classified



What is classified

Intrinsic nature :

i.e. cosmetic or similar toilet preparations characterised

by special physical form or by the composition

(i.e. active ingredients)

Use or application :

i.e. use of cosmetics or similar toilet preparations

Specific properties :

i.e. properties of cosmetic compositions or active ingredients

thereof or formulation aids used therein and process

related aspects



What is classified

A61K 8/00 :

defines the composition by a specific form (if applicable)

and the compounds (if applicable).

A61Q :

defines the use of the composition.

A61K 2800/00 :

defines the specific properties of the composition or

the compounds.

Only as invention information

Both as invention or additional information

Only as additional information



Multiple classification approach

Where A document has always at least one A61K 8/00 symbol

and one A61Q symbol as invention information.

Invention information and additional information

(if necessary).



Last-place-rule (LPR)

Where Definition :

In each of groups A61K 8/02 and A61K 8/18, in the absence

of an indication of the contrary, classification is made in the

last appropriate place.

The feature to be classified is only classified in the place

which appears last in the classification scheme.




Example Salicylic acid is a hydroxycarboxylic acid

with carboxyl group directly bound to an

aromatic ring.



Last-place-rule

Salicylic acid

A61K 8/36 A61K 8/368

A61K 8/365

A61K 8/36 .... Carboxylic acids; Salts or anhydride thereof

A61K 8/361 ..... Carboxylic acids containing more then 7 carbon

atoms in an unbroken chain

A61K 8/362 ..... Polycarboxylic acids

A61K 8/365 ..... Hydroxycarboxylic acids; Hetocarboxylic acids

A61K 8/368 ..... With carboxyl groups directly bound to carbon

atoms of aromatic rings




A61K 8/00 follows the LPR locally for A61K 8/02

and A61K 8/18

A61Q and A61K 2800/00 do not follow the LPR,

as several uses or properties could be relevant to

characterise an invention.


Table of contents

Introduction

Overall structure



Specific topics

Neighbouring fields



Multiple schemes system

Class-crossing This is a powerful tool to retrieve all documents dealing with

same subject-matter by combining classes from two or three

different schemes.

Example 1:

A sunscreen composition containing an UV-filter is claimed;

an anti-aging composition is described.

A61Q 19/08 (A) as additional

A61Q 17/04



A61Q as Invention and/or Additional US2008/081024

Mixture of compounds having a

complementary effect and being

classified in the same class.

A61Q 17/04

A61Q 19/04(A)

as additional

A61K 2800/5922

A61K 8/37 A61K 8/40 A61K 8/37


Table of contents

Introduction

Overall structure



Specific topics

Neighbouring fields


Specific topics

Form of the composition

A61K 8/0241 ..Containing particulates characterised

by their shape and/or structure

A61K 2800/60 ...Particulates further characterised

by their structure or composition

Additional information in A61K 2800 relates to specific

particle properties; e.g. the particle size under

A61K 2800/412 (micro-sized) and -/413 (nano-sized).


Specific topics

Form of the composition

WO 2007/115675

A61Q 3/02

A61K 2800/412 : particle size between 0,1-100 microns

(100-261μm in examples)

A61K 2800/654 : core comprising macromolecular material

A61K 8/731 (cellulose)

A61K 8/87 (polyurethane)

A61K 8/0241 (particulate

characterised by its structure)


Specific topics

Polymers

43 polymer groups Monomers are classified

The last-place-rule is applied by allocating to a co-polymer

the monomer-class occurring last in the scheme.

e.g. acrylate/acrylamide polymer

A61K 8/8158 (not -8147).

Crosslinking branches are not classified

(exception for polysiloxanes)

Block and graft polymers are placed at the end of

the scheme

(exception for polysiloxanes)


Specific topics

Polymers – typical error

LPR: A61K 8/8182

copolymer of vinylpyrrolidone

A61K 8/8158

(not 81881)

A61K 8/8182

1 The part of the monomer molecule which forms the polymer is the methacrylamide not the sulfate.


Table of contents

Introduction

Overall structure



Specific topics

Neighbouring fields


Neighbouring fields

www. cpcinfo.org

CPC scheme and CPC definitions

Can be found at the beginning of each CPC definition for

A61K 8/00 and A61Q:

Under each subgroup definition:

"Relationships with other classification places"

"Attention is drawn to the following places,

which may be of interest for search"


Neighbouring fields

Many neighbouring fields

Compositions which

can be used in a

therapeutic treatment

A61K 31/00 – A61K 51/00 (ingredients)

A61K 9/00 (physical form)

Compositions of

macromolecular

compounds

C08L

Detergent compositions,

e.g. soap bars (i.e. solid

cleansing compositions)

C11D

Cosmetic equipment A45D

Food or dietary

supplements A23L


Thank you for your attention!

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