Posts Tagged: "laches"

The Trump Administration is making major changes to reduce the size of government to address the $37 trillion federal debt, including withdrawing employment offers to patent examiners and firing patent examiners still within their probationary period. Meanwhile, as the number of examiners is being cut, the backlog of unexamined patent applications is at an all-time high, with some sources saying there are now at least 1.2 million unexamined patent applications pending. And against this backdrop the Federal Circuit has developed an unhealthy obsession with the doctrine of prosecution laches, which creates a presumption that patents are unenforceable if it took longer than six years to obtain.

Ordinarily, patent practitioners do not need to really think about prosecution laches, but laches has become a rather hot topic as the United States Patent and Trademark Office (USPTO) and courts have initiated what can only be characterized as an assault on an applicant’s statutory right to seek and file additional claims if those claims are supported by the initial disclosure.

An interesting tale of intrigue and woe is being written in the decade-long relationship between Google and Sonos. The most recent chapter ended with the district court finding the Sonos patents at issue in their patent litigation against Google were unenforceable due to laches because Sonos had the audacity to file a continuation and seek claims supported by—and actually incorporated from—an earlier filing. According to the district court, because Sonos could have filed those claims in the continuation earlier, that created a laches defense for Google.

Laches is an equitable defense that may be raised in a patent-related proceeding. If a defending party can show that a patent holder exhibited unreasonable delay that caused prejudice to the defending party, the patent holder may be barred by laches from asserting the right.While the examples of “reasonable” and “unreasonable” delay provided in Symbol Techs. are informative (as are the fact-specific analyses from the other cases), a bright-line test for “unreasonable delay” had yet to be established in the prosecution laches context. That is, until the June 2021 decision of Gil Hyatt v. Hirshfeld (Fed. Cir. 2021). This case pertained to the laches defense raised by the USPTO when Hyatt filed an action under 35 U.S.C. § 145 to obtain four patents subsequent to receiving an affirmance of rejections of various claims at the Patent Trial and Appeal Board (PTAB).

The U.S. Court of Appeals for the Federal Circuit (CAFC) on Friday upheld an Arkansas district court’s decision to grant Morris & Associate Inc.’s motion for summary judgment against John Bean Technologies Corporation’s infringement claims, based on the doctrine of equitable intervening rights. The opinion marked the first time the court has addressed the “boundaries of the phrase ‘protection of investments’ in [35 U.S.C.] § 252”, which outlines the effect of reissued patents.  

On Friday, May 11th, U.S. District Judge Edward Davila entered an order deciding motions made in a copyright case involving competing musical productions based on the fictional story of the fictional folk hero Zorro. Judge Davila’s orders allows copyright infringement claims asserted by a writer who developed a Zorro musical in the 1990s to move forward against Zorro Productions, the entity which had licensed the Zorro character to entertainment companies going back to the late 1940s. This case is in the Northern District of California.

On Thursday, April 20th, the Court of Appeals for the Federal Circuit issued a decision in Medinol Ltd. v. Cordis Corporation et. al. which vacated and remanded a lower court’s ruling that claims of patent infringement alleged by Israeli pharmaceutical firm Medinol were barred by the equitable defense of laches. The Federal Circuit’s decision comes after the U.S. Supreme Court overturned the Federal Circuit’s previous precedence on laches as an equitable defense in SCA Hygiene Products v. First Quality Baby Products, decided last year. The case was decided by a panel consisting of Circuit Judges Timothy Dyk, Jimmie Reyna and Kara Stoll.

Equitable estoppel does not bar assertion of patent claims later amended by reexamination when those new claims differ in scope from earlier claims in the patent that were not asserted. Thus, a defendant’s reliance on a patentee’s knowing silence and failure to enforce an earlier patent does not shield him from allegations of infringing later-issued claims of different scope.

It is that time once again when we look back on the previous year in preparation to close the final chapter of 2017 in order move fresh into the year ahead. 2017 was a busy year in the patent world, although change was not as cataclysmic as it had been in past years, such as 2012 when the PTAB and post grant challenges began, in 2013 when AIA first to file rules went into effect, or in 2014 when the Supreme Court decided Alice v. CLS Bank. It was, nevertheless, still an interesting year… To come up with the list below I’ve reviewed all of our patent articles, and have come up with these top 10 patent stories for 2017. They appear in chronological order as they happened throughout the year.

Equitable estoppel may be appropriate for the defendant in SCA v. First Quality since the plaintiff was silent for years after the defendant asserted invalidity (possibly fulfilling the misleading conduct through inaction and reliance on that conduct). But can equitable estoppel be relied upon as a defense against a dormant plaintiff in the example illustrated above? Below, we consider the two elements of equitable estoppel that replace the unreasonable delay element of laches: misleading conduct and reliance.

Without laches, accused infringers might more frequently invoke declaratory judgment to clear their products and services upfront rather than tolerate a looming threat of suit for years…. The Supreme Court’s recent decision in SCA Hygiene Products Aktiebolag v. First Quality Baby Products, LLC (Mar. 21, 2017) eliminated the equitable defense of laches in patent cases.  While time will reveal the impact of the SCA decision, elimination of laches, an equitable defense against “unreasonable, prejudicial delay in commencing suit,” Id. at 3 (citing Petrella v. Metro-Goldwyn-Mayer, Inc.(2014), provides greater security to patent owners who assert claims several years after discovering potential infringement.  Conversely, the decision removes one shield—albeit a relatively modest shield—from the accused infringer’s armament of potential defenses. 

The remaining vitality of estoppel as a defense against patent infringement after SCA Hygiene Products is also not a hypothetical question. Indeed, the issue of estoppel remains very much “alive and well” in SCA Hygiene Products. Besides laches, the accused infringer in SCA Hygiene Products, First Quality Baby Products, had moved (not surprisingly) for summary judgment based upon an estoppel defense, which was also granted by the district court. Also not too surprisingly, that portion of the ruling by the district court was reversed and remanded by the Federal Circuit panel on the ground that there were “genuine issues of material fact” to be resolved. The Federal Circuit majority in its en banc ruling also reinstated and preserved the Federal Circuit panel’s reversal and remand of the district court’s grant of summary judgment on the estoppel defense. Finally, in footnote 2, SCOTUS’ decision in SCA Hygiene Products expressly states: “We do not address the Federal Circuit’s reversal of the District Court’s equitable estoppel holding.”

In a strong reversal of the Federal Circuit, the US Supreme Court held in SCA Hygiene Products Aktiebolag v First Quality Baby Products, LLC, No. 15-927 (March 21, 2017), that delay by a patentee will not give rise to a laches defense during the statutory six-year damages period under 35 U.S.C. § 286. Justice Samuel Alito authored the 7–1 majority opinion, extending the court’s decision in Petrella v. Metro-Goldwyn-Mayer, Inc. (2014), which held that laches is inapplicable for copyright infringement, a provision similar to Section 286 of the Patent Act… The Supreme Court noted that its determination regarding laches does not preclude a defense based on equitable estoppel…

The fact that laches cannot be used as a defense to a patent infringement action brought during the statute of limitations is most definitely a pro-patent decision. Presently patents are much weaker than they have been at any time over the last 36 years. But patent law has always swung like a pendulum, and this low point will not last forever. Thus, in the wake of the Supreme Court’s decision in SCA Hygiene, patent owners would do well to consider forgoing patent enforcement. Instead, allow infringement to accrue and then sue for infringement in several years when the law may be quite a bit more favorable. After all, patents can last for 20 years, the statute of limitations is six-years, and without a laches defense available to infringers you will be able to seek damages going back six years from whenever you choose to sue.