Evil SBC acts like bully going after small sites with an absurd patent. If you’ve ever designed a web site with “selectors or tabs that… seem to reside in their own frame or part of the user interface” such as Metafilter’s header or Amazon’s tabs or c|net’s yellow side bar, then your design is in violation of SBC Communication’s patent number 5,933,841. Here’s the abstract:
A structured document browser includes a constant user interface for displaying and viewing sections of a document that is organized according to a pre-defined structure. The structured document browser displays documents that have been marked with embedded codes that specify the structure of the document. The tags are mapped to correspond to a set of icons. When the icon is selected while browsing a document, the browser will display the section of the structure corresponding to the icon selected, while preserving the constant user interface.