What is the Image File Wrapper (IFW) system and how does it affect public access to patent applications?

The Image File Wrapper (IFW) system is an electronic system used by the USPTO to store and process patent application files. Key points about the IFW system and its impact on public access include:

• Paper components of application files are scanned to create electronic image files
• For IFW applications, the electronic file is the Official file
• No access is granted to original paper documents used to create the IFW file
• Processing and examination are conducted using electronic images
• IFW files for patented applications, published applications, or applications referenced in published documents are accessible through Patent Center on the USPTO website
• All patent applications filed after June 30, 2003, have been scanned into the IFW system

The IFW system has made it easier for the public to access eligible patent application files online through Patent Center, eliminating the need to physically inspect paper files in many cases.