| Patent Classification |
Article Index for Patent |
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| CATEGORIES ABOUT PATENT CLASSIFICATION | |
| patent classifications | |
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A patent classification is fixed under an agreement among people, otherwise it is useless. The International Patent Classification (IPC) is agreed internationally. The United States Patent Classification (USPC) is fixed by the United States Patent And Trademark Office . The European Classification (ECLA) is based on the IPC but adapted by the European Patent Office to its own requirements. The Derwent Classification System is fixed by an enterprise. SEE ALSO EXTERNAL LINKS |
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