Is it possible to search using the US national patent classification system?
Yes. Original (Initial) US national classes, as issued on the US document at the time of publication, are available for US documents since 1975. This data is available at the Member Patent Level. At present, Thomson Scientific is NOT updating the US national classes following any USPTO reclassification cycle. The introduction of this reclassification data is a planned future enhancement. When this data is introduced, the Current US classes will be available at both the Invention and Member Patent Levels.
Yes. Original (Initial) US national classes as issued on the US document at the time of publication are available for US documents since 1975. This data is available at the Member Patent Level. At present Thomson Scientific is NOT updating the US national classes following any USPTO reclassification cycle. The introduction of this reclassification data is a planned future enhancement. When this data is introduced the Current US classes will be available at both the Invention and Member Patent Levels.
