"US Patent No. 6,748,582, granted and assigned on Tuesday to Microsoft, covers the use of a "task list" in a software-development environment. The patented technology essentially integrates certain comments left in the source code of an application under development with an accompanying checklist. Leave a "TODO" comment in the source code, and an authoring application automatically creates an item in the task list. Check an item off on the task list, and the corresponding source code comment is changed."