Three URLs for Researching Patents

Linda and others,

    I used these three URLS to search for patent information last year.
Recent patents often provide patent histories.


Glass On-line Patents

     <http://www.glassonline.com/>

IBM’s Intellectual Property Newtwork, 1971 to present

     <http://www.patents.ibm.com/ibm.html>

US Patent and Trademark Office

     <http://www.uspto.gov/patft/>


    Perhaps someone can add to this list for all of us.


Best regards, Roc

Roc H. Indermill, M.A..
Flagstaff, Arizona