International Patent Classification

Computer-Assisted Categorization of Patent Documents in the International Patent Classification

The World Intellectual Property Organization is currently developing a system for assisting users in categorizing patent documents in the International Patent Classification (IPC). The system should support the classification of documents in several languages and aims to assist users in locating relevant IPC symbols by providing them with a convenient web-based service. The approach taken for d...

Ontology based Approach to Patent Mining for Relating International Patent Classification (IPC) to a Scientific Abstract

Patent Cases Docket Classification

We contribute to the Intellectual Property Litigation Clearinghouse (IPLC) project by providing an extensive experimental evaluation of two classification techniques, namely classification trees and support vector machines. We focus on dockets belonging to the “Claim Construction order” class and we build classifiers that achieve up to 87% precision with 88% recall. This provides a 79% improvem...

International Patent Harmonization and Trade Balance of Patent Rights

The economic implications of international patent harmonization have attracted little empirical scrutiny. Based on patent application and renewal data in major European countries since the early 1980s, this paper examines the empirical relationship between international patenting, R&D, and “trade flows” of patent rights across national borders. The analysis reveals a substantial patent “trade i...

Text Representations for Patent Classification

gives a small, but significant, improvement in classification results on the CLEF-IP 2011 corpus, compared with classification on abstracts only. The effort involved in parsing the descriptions is considerable, however: Because of the long sentences and the dense word use, a parser will have much more difficulty in processing text from the description section than from the abstracts. The titles...