John Erickson

1. US 7,702,725 "Digital object repositories, models, protocol, apparatus, methods and software and data structures"
2. US 7,647,642 "System and method for managing copyrighted electronic media"
3. US 7,398,556 "System and method for managing copyrighted electronic media"
4. US 7,103,773 "Message exchange in an information technology network"
5. US 7,047,241 "System and methods for managing digital creative works"
6. US 6,807,534 "System and method for managing copyrighted electronic media"
7. US 5,765,152 "System and method for managing copyrighted electronic media"