Perils of Reissue - Recapture Doctrine Has Teeth!

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Patent owners beware! Over the past year, the Federal Circuit has issued two major rulings1 which stand as a warning to patent owners that when requesting reissue of an arguably defective patent, if you attempt to broaden aspects of the claims relating to subject matter surrendered during prosecution of the defective patent,2 courts (and now likely the U.S. Patent Office as well) will extensively examine the "entire" prosecution history of the defective patent and its family to determine if you are attempting to recapture the surrendered subject matter.3 This means that the review will not only include the prosecution history of the "defective" patent undergoing reissue, but also the prosecution history of any and all "ancestor patent applications."4 The warning is out. Improper recapture of surrendered subject matter will not be tolerated.

The unfortunate result of the Federal Circuit's zealous desire to prevent improper recapture, however, is that: pursuit of claims of a broader or mixed scope through the reissue process can be tantamount to walking through a mine field that grows with the number of patent applications added to the patent’s family. If patent owners and portfolio managers desire to enlarge the scope of the claims of an issued patent,5 the reissue application must be applied for within two years from the grant date of the issued patent. Due to these broaden reissue difficulties, it may be prudent to make a determination of whether broader claims are desired much earlier in an application process and prior to patent grant/issuance to avoid the broaden reissue route.

Please see full article below for more information.

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DISCLAIMER: Because of the generality of this update, the information provided herein may not be applicable in all situations and should not be acted upon without specific legal advice based on particular situations.

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