Dutch Industries Patent Fee Conundrum Solved Effective February 1, 2006

In our April 2003 IP Update, we reported on the Federal Court of Appeal decision Dutch Industries Ltd. v. The Commissioner of Patents, Barton No-Till Disk Inc. and Flexi-Coil Ltd., which declared a patent to be invalid because the annual maintenance fee payments were made on the small-entity scale when the patent owner did not qualify as a small entity. Although the patent owner made corrective "top-up" payments, the Court held that the Commissioner of Patents had no statutory authority to accept corrective payments, and therefore the patent had lapsed for failure to make appropriate maintenance fee payments.

Because the Commissioner of Patents had a longstanding practice of accepting corrective payments, this ruling had the potential to affect a large number of Canadian patents that could be deemed invalid on the basis of incorrect payments. If at any time in the past, small-entity fees were paid when the status of the patent owner at the time of filing the application was that of a