IPC Internet Publication Help

 

STATS Assistance

 

This identifies IPC places most frequently referenced in the Patentscope database when searched for particular terms. Statistical presentation of the search results is performed according to IPC subclass and group. It is possible to search for simple terms (sequence of alphanumerical characters) and multi-term (combination of simple terms separated by space characters) in all patent collections of the Patentscope.

 

 

The “STATS” button is available from the left menu above the “IPCCAT” tab under “Assistance”.

 

The “STATS” functionality is available in any of the two languages of the IPC data loaded in the system  but only one can be used at the time (the one defined by the “Language” selector).

 

 

Word(s)

During STATS search, the query is broken up into terms. A Term is a single word such as "car" or "engine".

 

Some special characters (e.g. % ( ) { } [ ] ! & | ^ , :) and stop words (e.g. “an”, “and”, “not”, “such”) are ignored (i.e. typing them or not returns the same search result)

 

The search engine is trying to find all the specified terms in a text neighborhood which corresponds more or less to the size of a Patent document paragraph.

Note: that the Patenscope query string selects the Stemmer according to the one set under the “Language” button. For example if English is selected, the term "electrical" will be stemmed to "electric", "electricity" and so on.

So it is important to choose a language option from the left menu.

Stemming

English: Standard Lucene implementation of the Porter Stemming Algorithm, a normalization process that removes common endings from words.

Example: "riding", "rides", "horses" ==> "ride", "ride", "hors".

Other languages: specific Stemming Algorithms are also used

Limit to:

The content of the “Limit to” box specifies the places of the IPC and their subgroups to be searched and to be used as filter for returned places. It is a comma-separated list of IPC symbols.

Exclude:

The content of the “Exclude” box specifies the places of the IPC and their subgroups to be excluded from the search and from returned places. It is a comma-separated list of IPC symbols.

Display Results

Hit enter or click on “Display results” to launch the search.

 

The list of search results is displayed as a list of hyperlinks to the relevant IPC subclasses (maximum 10 subclasses), based on an analyzed summary of the main IPC in Patentscope, with indication of “Relevance” level between 1 and  100 for each subclass. The Refine “>>” icon next to each subclass displays subgroup level results (maximum 5 subgroups) within the specified subclass, with indication of “Relevance” level between1 and 100 for each subgroup.