Theory and practical use of European Patent Classification : Search tool leading the world toward International Harmonization
Abstract
Theory and practical use of European Patent Classification : Search tool leading the world toward International Harmonization
- Publication:
-
Journal of Information Processing and Management
- Pub Date:
- 2010
- DOI:
- 10.1241/johokanri.53.241
- Bibcode:
- 2010JIPM...53..241M
- Keywords:
-
- European Patent Classification;
- ECLA;
- ICO;
- International Patent Classification;
- IPC;
- U.S. Patent Classification;
- USPC;
- File Index System;
- classification scheme;
- search tool;
- hybrid classification;
- patent retrieval;
- patent search