patent

Klassifikation des Deutschen Patent- und Markenamts

"Die DEKLA bildet zusammen mit der IPC die interne Klassifikation des Deutschen Patent- und Markenamts (DPMA). Die DEKLA ist eine Erweiterung der IPC und besitzt ca. 40.000 Unterteilungen. Die IPC und die DEKLA besitzen zusammen ca. 110.000 Unterteilungen. Die DEKLA / IPC dient den Prüfern des DPMA zur Pflege ihres Prüfstoffs (Patentdokumente, die für die Patentprüfung benötigt werden).

Extension of the International Patent Classification published and internally used by the German Patent Office.

Cooperative Patent Classification

"The Cooperative Patent Classification (CPC) effort is a joint partnership between the United States Patent and Trademark Office (USPTO) and the European Patent Office (EPO) where the Offices have agreed to harmonize their existing classification systems (European Classification (ECLA) and United States Patent Classification (USPC) respectively) and migrate towards a common classification scheme."

"The Cooperative Patent Classification (CPC) effort is a joint partnership between the United States Patent and Trademark Office (USPTO) and the European Patent Office (EPO) where the Offices have agreed to harmonize their existing classification systems (European Classification (ECLA) and United States Patent Classification (USPC) respectively) and migrate towards a common classification scheme."

United States Patent Classification

"The USPC is a system for organizing all U.S. patent documents and many other technical documents into relatively small collections based on common subject matter. Each subject matter division in the USPC includes a major component called a class and a minor component called a subclass. A class generally delineates one technology from another. Subclasses delineate processes, structural features, and functional features of the subject matter encompassed within the scope of a class. Every class has a unique alphanumeric identifier, as do most subclasses.

International Patent Classification

"The International Patent Classification (IPC), established by the Strasbourg Agreement 1971, provides for a hierarchical system of language independent symbols for the classification of patents and utility models according to the different areas of technology to which they pertain.
The IPC divides technology into eight sections with approximately 70,000 subdivisions. Each subdivision has a symbol consisting of Arabic numerals and letters of the Latin alphabet.

"The International Patent Classification (IPC), established by the Strasbourg Agreement 1971, provides for a hierarchical system of language independent symbols for the classification of patents and utility models according to the different areas of technology to which they pertain.
The IPC divides technology into eight sections with approximately 70,000 subdivisions. Each subdivision has a symbol consisting of Arabic numerals and letters of the Latin alphabet.

Derwent World Patents Index Classification System

"Companies often use different names for the same invention, and additional variation may be introduced when the patent application is translated into different languages. Also some keywords can appear in many different contexts within patent titles. For example the word 'valve' can be either mechanical or electrical. So a subject classification system is essential for effective patent searching.

"Companies often use different names for the same invention, and additional variation may be introduced when the patent application is translated into different languages. Also some keywords can appear in many different contexts within patent titles. For example the word 'valve' can be either mechanical or electrical. So a subject classification system is essential for effective patent searching.

European Classification System

"The European Classification System (ECLA) is an extension of the IPC and is used by the EPO. Both the IPC and ECLA are divided into eight sections, A-H, which in turn are sub-divided into classes, sub-classes, groups and sub-groups. There are approximately 135 000 classification entries in ECLA." "ECLA has been replaced by the Cooperative Patent Classification (CPC) as of January 1, 2013."

"The European Classification System (ECLA) is an extension of the IPC and is used by the EPO. Both the IPC and ECLA are divided into eight sections, A-H, which in turn are sub-divided into classes, sub-classes, groups and sub-groups. There are approximately 135 000 classification entries in ECLA." "ECLA has been replaced by the Cooperative Patent Classification (CPC) as of January 1, 2013."

Patent- och registreringsverket Tesaurus

"Tesaurus är en databas med utvalda och kontrollerade ämnesord som delvis är hierarkiskt ordnade. Ämnesorden är sökbara i fritext i de databaser där indexering används som en extra sökhjälp."

"Thesaurus is a database of selected and controlled subject that is partly organized hierarchically. Subjects are searchable in free text in the database where the index is used as an additional search help."