I would like to thank the University of North Carolina for offering the use of SunSITE system as a host for the Internet Patent Searching system. If you have any questions or suggestions (and in particular, donations), please contact me.
Gregory Aharonian
Enter a class/subclass code here to get a list of patent titles. Use
any of the following forms:
363-131 121-55A 14-.5
that is, no embedded spaces, class and subclass seperated by a dash, and any
subclass letters capitalized. Currently Design Patent titles (those in the
classes of the form Dxx.yy) are not retreivable.
Enter a patent number here to get the abstract. Use the following form:
4567890
that is, no embedded spaces or commas. Currently Design Patent abstracts
(those in the form Dxxxxxx) are not retreivable. Only patent abstracts for
patents between 4794652 and 4890334 are available. More as donations come
in.
The US Patent and Trademark Office uses a classification scheme with 400+ main classes, and tens of thousands of subclasses, to classify all of the 5,300,000+ patents issued since the 1800's. With a few clicks of your mouse, you can obtain a list of titles to patents in any class/subclass. The first is to locate the class that pertains to your technology area.
The 400+ main classes are divided into four supergroups: electronic, chemical, engineering and mechanical, each of which are divided into 5 to 7 groups. A master list of all the classes is also provided. The Manual pages at this Mosaic site are current as of December 1993.