forfeiture Archives

Equivalence Requires Element-by-Element Proof With Linking Argument

by Tessa Kroll | Nov 7, 2024 | Patents

The US Court of Appeals for the Federal Circuit affirmed a district court determination that a patent owner had not provided the “particularized testimony and linking argument” required to demonstrate equivalence under the doctrine of equivalents. NexStep, Inc. v. Comcast Cable Commc’ns, LLC, Case No. 2022-1815 (Fed. Cir. Oct. 24, 2024) (Chen, Taranto, JJ.) (Reyna, J., concurring in part and dissenting in part). In his dissent, Judge Reyna criticized the majority for ignoring the totality of the evidence presented by the patent owner and imposing a new rule requiring patentees to always present expert testimony to prove infringement under the doctrine of equivalents.

NexStep owns a patent directed to a “concierge device” for assisting users with obtaining customer support for smart devices. The claims are directed to a concierge device that initiates a technical support session in response to “a single action” (i.e., a single button press) by a user. After the claimed “single action,” the concierge device conveys consumer device identification information for the product at issue, identifies an appropriate technical support team for the product, and causes the home gateway to initiate a support session for the device and forward the consumer device information during the session.

NexStep sued Comcast for patent infringement, asserting that three tools in Comcast’s mobile smartphone application infringed the concierge device patent: Xfinity Assistant, Troubleshooting Card, and Diagnostic Check. Each of these tools assists users with troubleshooting a given device in response to the user pressing a series of buttons on a smartphone’s display. At trial, NexStep argued that pressing a series of buttons literally met the single action limitation because a single action could comprise a series of steps. By way of illustration, NexStep’s expert explained that throwing a baseball – a single action – required multiple steps: “[W]hen you throw a baseball, you pick it up, you orient it, you get it in your palm, you throw it.”

The jury returned a verdict of no literal infringement but found infringement under the doctrine of equivalents. Comcast moved for judgment as a matter of law, which the district court granted after finding that NexStep had failed to offer the “particularized testimony and linking argument” required to demonstrate equivalence. NexStep appealed.

The Federal Circuit emphasized that the doctrine of equivalents provides a “limited exception” to the principle that the claim defines the scope of the patentee’s exclusivity rights, and that a finding under the doctrine of equivalents is “exceptional.” To guard against overbroad applications of this exception, the Court’s precedent imposes specific evidentiary requirements necessary to prove infringement under the doctrine. The patent owner must provide proof on an element-by-element basis and from the perspective of someone skilled in the art, “for example through testimony of experts or others versed in the technology; by documents . . . and . . . by the disclosures of the prior art.” Finally, the patent owner must provide “particularized testimony and linking argument as to the insubstantiality of the differences between the claimed invention and the [...]

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Unified Front: No Forfeiture by Failing to Raise Argument in Request for Rehearing

by Courtney Seams | Aug 8, 2024 | Patents

Addressing forfeiture of issues on appeal and sufficiency of the asserted prior art, the US Court of Appeals for the Federal Circuit upheld a Patent Trial & Appeal Board obviousness finding, explaining that a party does not waive arguments on appeal by failing to include them in a request for rehearing. Voice Tech Corp. v. Unified Patents, LLC, Case No. 22-2163 (Fed. Cir. Aug. 1, 2024) (Lourie, Chen, Cunningham, JJ.)

Unified Patents petitioned for inter partes review (IPR) of a Voice Tech patent that purported to improve upon the prior art by allowing a single mobile device to access and control various native applications and functions on a computer. Unified alleged that the challenged claims were unpatentable as obvious over three prior art references. The Board agreed and found that all of the challenged claims were unpatentable. Voice Tech appealed.

Voice Tech argued that Unified’s petition failed to identify any disclosure in the prior art that taught the “mobile device interface” claim limitation in the challenged claims because Unified’s claim analysis failed to expressly mention a “mobile device interface.” The Board dismissed this argument, finding that Unified properly mapped its analysis of other patent claims to the “mobile device interface” claim recitation and presented a sufficient argument regarding obviousness. The Federal Circuit agreed that one of the prior art references taught a “mobile device interface.” The Court found that the Board did not rely on a new theory not found in the IPR petition, but instead had mapped the “mobile device interface” limitations to the prior art because the petition itself raised the theory.

Voice Tech also argued that the Board had failed to properly interpret certain claim terms. Unified countered that Voice Tech forfeited the claim construction arguments because they were not included in Voice Tech’s request for rehearing to the Board. The Federal Circuit disagreed, finding that a party’s choice to not re-raise an argument in a request for rehearing will not, by itself, forfeit the argument for review on appeal. The Court found that since Voice Tech had raised the claim construction arguments to the Board in its patent owner’s response, it had not forfeited those arguments on appeal.

The Federal Circuit also addressed Unified’s argument that Voice Tech’s proposed claim constructions would not change the outcome of the patentability analysis given the Board’s findings that the prior art disclosed the claim terms. The Court agreed with Unified, finding that it only needed to construe claim terms as necessary to resolve the controversy. The Court found that because Voice Tech’s responsive arguments were conclusory and failed to address how Voice Tech would be prejudiced by the Board’s adopted claim construction, the Federal Circuit did not need to consider Voice Tech’s claim construction arguments.

Finally, the Federal Circuit addressed Voice Tech’s arguments that the Board erred in finding that the prior art taught certain claim limitations and that Unified’s obviousness analysis was based on hindsight bias. The Court upheld the Board’s obviousness determinations as to all challenged claims, [...]

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Your Gang Did What!? No Matter—No Forfeiture of IP

by Kathleen Lynch | Jan 26, 2023 | Trademarks

In a unique case blending intellectual property and criminal law, the US Court of Appeals for the Ninth Circuit agreed that a district court properly exercised jurisdiction over a motorcycle club and upheld the lower court’s finding that the club did not have to forfeit its collective membership marks. United States v. Mongol Nation, Case Nos. 19-50176; -50190 (9th Cir. Jan. 6, 2023) (Ikuta, Forrest, Thomas, JJ.)

Mongol Nation is an unincorporated association comprised of Mongols Gang members and, per the district court, is “a violent, drug trafficking organization.” After a jury found Mongol Nation guilty of both substantive and conspiracy violations of the Racketeer Influenced and Corrupt Organizations (RICO) Act, the US government sought forfeiture of Mongol Nation’s rights in its collective membership marks—a category of “intellectual property used to designate membership in an association or other organization”—and specific property displaying those marks. A jury granted both forfeiture requests, but the district court granted forfeiture only of specific tangible property, not the marks themselves. The district court cited the First and Eighth Amendments: The First protected Mongol members’ rights to display their marks, and the Eighth prohibited the disproportionate remedy of forfeiture of marks that have “immense tangible” value to Mongol members. The government then filed another forfeiture application proposing that Mongol Nation forfeit its exclusive rights in the marks, meaning that Mongol Nation could not prevent others from using them, even in commerce, but that they would not transfer to or vest in the United States. The district court again denied this motion on First and Eighth Amendment grounds.

Both parties appealed, presenting two issues to the Ninth Circuit. Mongol Nation challenged the district court’s jurisdiction to hear the case because Mongol Nation is not a “person” under RICO. The government challenged the district court’s denial of forfeiture of the marks.

The Ninth Circuit summarily dealt with the first issue, noting that Mongol Nation did not properly raise this argument at the district court. The Court was not persuaded by Mongol Nation’s three-part argument that RICO defines an entity to be a “person” only if the entity has a legal interest in property, California only allows unincorporated associations to hold property if the association has a “lawful” purpose, and the indictment describes Mongol Nation as existing for an “unlawful purpose.” The Court found that the association misstated the indictment allegations, which said Mongol Nation’s purposes were “not limited to” the enumerated unlawful ones. Thus, because this argument was not properly preserved and because the RICO “person” definition did in fact encompass Mongol Nation, the Court found that the district court properly exercised jurisdiction.

The Ninth Circuit also affirmed the district court on the forfeiture issue, albeit for different reasons. Without reaching the district court’s First or Eighth Amendment logic, the Ninth Circuit stated that “RICO’s plain text” made the government’s forfeiture request “a legal impossibility.” The Court explained that, following a criminal conviction, a statute must enable property forfeiture. RICO does have such a penalty provision that encompasses [...]

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