4. Subclass List of Patents
by your subclass number(s) for a list of patent numbers granted
in that area.
DVD ROM: CASSIS Patents CLASS - 1790 to date
classification information for all utility, design, plant, reissue, X-numbered
patents, and patent application publications, and defensive publications and
statutory invention registrations issued from 1790
DVD ROM CASSIS: Patents BIB - 1969 to date. Includes abstracts for 1988 to date.
information for utility patent grants issued from 1969 to the present and for
other types of patent documents issued from 1977 to the present. In addition,
bibliographic information for patent application publications provided starting
search specifying Class and Subclass - 1790 to date
Patent text search within Bibliography fields - 1969 to date. Includes abstracts for 1988 to date