IBM Intellectual Property Network IBM Intellectual Property Network
  IPN Home Search Order Shopping Cart Login Site Map Help

About IPN
Free Registration
Licensing Button
IPN for Business
Our IP Solutions

Services Directory
IP Pages

More Info
What's New
Our Partners

Gallery of Obscure Patents

Link to IPN icon

TRUSTe logo - site privacy statement

  Enter search word or phrase
 e.g., elevator; robot; twin-engine; Smith John; bee culture

Choose the patent collection(s) to search:   [Collection details]
dots horizontal ruler
Patent Number
Patent Number
Boolean Text
Boolean Text
Advanced Text
Advanced Text

U.S. Class by title
U.S. Class
by title

U.S. Class by number
U.S. Class
by number
IBM Technical
Disclosure Bulletin
Partnerships - ISI eSource   Headlines
bullet INPADOC data now on IPN
bullet Derwent, IBM reach agreement to offer DWPI on IPN
bullet Cross collection searching just got faster and easier
bullet File histories of U.S. patents now available
  More site news ...
 Privacy Legal IBM Gallery IP Pages Advertising FAQ Contact Us