Less than a week after the U.S. Patent and Trademark Office ordered a second re-examination of his embattled Y2K computer fix patent, a California inventor has launched another attempt to collect licensing fees from hundreds of companies said to have used the technology to forestall millennium bugs.

In a March 15 press release, Dickens-Soeder2000 LLC announced that it would begin this week to notify Fortune 500 and Information Week 500 companies of its new “Y2K Solution Licensing Package,” which includes inventor Bruce Dickens’ windowing patent for formatting and sorting dates spanning the turn of the century as well as other patents and pending patent applications.