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 4633526 and 4890334 (1987 - 1989) 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.