by Dennis Crouch

SCA Hygiene v. First Quality (Fed. Cir. 2014)

Rather than focusing on a single event, allegations of patent infringement generally involve a series of actions that each constitute an infringement. Courts identify each act (making, using, selling, …) as a separate and actionable infringement of the patent. This notion of repeated acts of infringement (the “separate-accrual rule”) is only occasionally important, but comes up most often in the context of the impact of delays in pursuing court action with the effect of making delays look less egregious.

The Patent Act includes a six-year limitation on collecting back-damages. 35 U.S.C. 286. The old equitable doctrine of laches has also traditionally been available to cut-off damages when the patentee unreasonably and inexcusably delayed in bringing suit. Under the Federal Circuit’s 1992 en banc Aukerman decision, courts generally apply the same six-year timeline for laches – finding that a six-year delay in filing suit creates a presumption of unreasonable delay that, when coupled with detrimental reliance leads to a laches finding. Although it only creates a presumption of unreasonableness, in my experience, this six-year delay makes laches much much more likely to be found. Laches then has the ordinary result of cutting-off all pre-suit damages. However, based on the aformentioned theory of individualized acts of infringement, a remedy remains available for infringement that occurs after the lawsuit is filed as well as the potential for further equitable relief to stop future infringement.

Laches is based on a tradition of equity and has no direct tie-in to the patent statute itself. Likewise, Laches is not found in the list of defenses under Section 282 nor identified as an aspect of the statutory limitation on damages. Of course, that is the tradition of equity — existing for times when the law fails.

Putting this entire area somewhat astir is the Supreme Court’s 2014 copyright laches decision in Petrella v. Metro-Goldwyn-Mayer, 134 S.Ct. 1962 (2014). In similar manner to patent law, the copyright statute has a three-year statute of limitations on filing suit. In the case, the (alleged) copyright holder had delayed for 18-years in filing suit. The statute-of-limitations cut-off all but the last three years of recovery and the lower court found that laches blocked recovery for those remaining three years. However, in Petrella the Supreme Court revived the copyright claim and held instead that laches should not apply because Congress has taken fully spoken on the issue with its statute.

Laches, we hold, cannot be invoked to preclude adjudication of a claim for damages brought within the three-year window. . . . [L]aches is a defense developed by courts of equity; its principal application was, and remains, to claims of an equitable cast for which the Legislature has provided no fixed time limitation. See 1 D. Dobbs, Law of Remedies 104 (1993) (“laches . . . may have originated in equity because no statute of limitations applied, . . . suggest[ing] that laches should be limited to cases in which no statute of limitations applies”). Both before and after the merger of law and equity in 1938, this Court has cautioned against invoking laches to bar legal relief. See Holmberg v. Armbrecht, 327 U. S. 392 (1946) (in actions at law, “[i]f Congress explicitly puts a limit upon the time for enforcing a right which it created, there is an end of the matter,” but “[t]raditionally . . . , statutes of limitation are not controlling measures of equitable relief “); Merck & Co. v.Reynolds, 559 U. S. 633 (2010) (quoting, for its current relevance, statement in United States v. Mack, 295 U. S. 480 (1935), that “[l]aches within the term of the statute of limitations is no defense [to an action] at law”); County of Oneida v. Oneida Indian Nation of N. Y., 470 U. S. 226, n. 16 (1985) (“[A]pplication of the equitable defense of laches in an action at law would be novel indeed.”).

An important element of the holding is the ongoing separation of legal and equitable remedies — with the notion that laches may still be obtained to block equitable remedies, but not to bar a traditional legal remedy such as past-damages.

In Petrella, the Supreme Court limited its particularly holding to copyright law and noted that “[w]e have not had occasion to review the Federal Circuit’s position” on laches in patent cases. Of course, the parallels between copyright and patent are strong in this situation and so we would expect the Federal Circuit to seriously consider whether Petrella should be applied to overrule Aukerman.

SCA v. First Quality: In 2003, SCA sent a C&D letter to First Quality in 2003 regarding patented adult diapers. However, in 2004, SCA filed for ex parte reexamination that was completed in 2007 with a confirmation of patentability. Finally, in 2010, SCA filed the lawsuit against First Quality. By that time (beginning in 2006) First Quality had greatly expanded its use of the underlying concepts of the invention (it doesn’t leak). Rather than deciding the lawsuit, the district court dismissed the case based upon the delay finding both laches and equitable estoppel.

On appeal, the Federal Circuit has affirmed – most notably holding that the Petrella decision has no impact on the adjudication of laches in patent cases. However, rather than addressing the clear and obvious tension, the court simply wrote:

Petrella notably left Aukerman intact. See id. at

1974 n.15 (“We have not had occasion to review the Federal Circuit’s position.”). Because Aukerman may only be overruled by the Supreme Court or an en banc panel of this court, Aukerman remains controlling precedent.

While clinging to the Aukerman approach, affirmance was easy because the six-year delay creates a strong presumption of unreasonable delay. However, the court did reverse the summary judgment of equitable estoppel because there was no evidence of the required affirmative act such as a misleading communication leading to detrimental reliance on the notion that the defendant’s infringement would be permissible.

The decision here is notable for its glaring reticence. The panel of Judges Reyna, Wallach, and Hughes are all relatively new and perhaps expect en banc review of this issue. Many (perhaps most) other judges on the court would have made their mark rather than simply passing.

Although I believe, on balance, that Petrella controls here, the case is not open-and-shut because there are important distinctions as you move from copyright to patent. Notably, the copyright statute of limitations is a more direct and total limit on filing suit while in patent law the statute only limits the collection of too-far-back damages. Thus, in this situation, Congress seems to have spoken more fully in the copyright realm. Additionally, the three versus six year limit appears important because, in the time-scale of lawsuits and three years is a relatively short time while six-years begins to allow for much more unreasonableness and detrimental reliance. That time differential is further compounded by the fact that three years is quite a small bit of the copyright term (5%) while six-years is often more than 1/3 of the patent term — suggesting that a patentee’s should move more quickly.

If anything, this issue will be interesting to watch.