Here is an update on activity in patent cases pending before panels of the Federal Circuit where the cases have attracted at least one amicus brief. We keep track of these cases in the “Other Cases” section of our blog. Today, with respect to these cases, we highlight three recent opinions in cases raising questions related to patent eligibility, Article III standing, and infringement; one newly identified case raising a question related to infringement that attracted three amicus briefs; one recent oral argument in a case that raised questions related to sanctions, one new response brief in a case that raised questions related to patent eligibility, and one new principal and response brief in a case that raised questions related to sanctions and obviousness. Here are the details.
Opinion Summary – Ollnova Technologies, Ltd. v. Ecobee Technologies ULC
Recently the Federal Circuit issued its opinion in Ollnova Technologies, Ltd. v. Ecobee Technologies ULC, a patent case we have been following because it attracted an amicus brief. In this case, the patent owner, Ollnova, appeals a district court’s denial of requested prejudgment interest, and the accused infringer, Ecobee, cross-appeals the district court’s decisions on jury instructions and multiple issues including eligibility, infringement, damages, and marking. In an opinion authored by Judge Chen and joined by Judges Cunningham and Stark, the panel affirmed-in-part, dismissed-in-part, vacated the judgment, and remanded the case. This is our summary of the opinion.
Opinions & Orders – June 4, 2026
This morning, the Federal Circuit released one precedential opinion and four nonprecedential opinions. The precedential opinion comes in a patent case appealed from the Eastern District of Texas. One nonprecedential opinion comes in a patent case appealed from the Patent Trial and Appeal Board, one comes in a trade case appealed from the Court of International Trade, one comes in patent case appealed from the District of Delaware, and the last opinion comes in response to a petition for review of a decision from the Merit Systems Protection Board. Here are the introductions to the opinions.
Argument Recap – Ollnova Technologies Ltd. v. Ecobee Technologies ULC
Last week the Federal Circuit heard oral argument in Ollnova Technologies Ltd. v. Ecobee Technologies ULC, a patent case we have been following because it attracted an amicus brief. In this case, the patent owner, Ollnova, appeals a denial of requested prejudgment interest, and the accused infringer, Ecobee, cross-appeals the lower court’s decisions on jury instructions and multiple issues including eligibility, infringement, damages, and marking. Judges Chen, Stark, and Cunningham heard the oral argument. This is our argument recap.
Court Week – April 2026 – What You Need to Know
This week (and next Monday) is Court week at the Federal Circuit. The court will convene 14 panels to consider 73 cases. Of the 73 cases, the court will hear oral argument in 55. The Federal Circuit provides access to live audio of these arguments via the Federal Circuit’s YouTube channel. This month, two cases scheduled for oral argument attracted amicus briefs. Here’s what you need to know about these two cases.
Argument Preview – Ollnova Technologies, Ltd. v. Ecobee Technologies ULC
As we reported yesterday, two cases being argued at the Federal Circuit in April attracted amicus briefs. One of these cases is Ollnova Technolodies, Ltd. v. Ecobee Technologies ULC, a patent case. In it, the patent owner Ollnova appeals a denial of requested prejudgment interest, and the accused infringer Ecobee cross-appeals the lower court’s decisions on jury instructions and multiple issues including eligibility, infringement, damages, and marking. This is our argument preview.
Update on Important Panel Activity
Here is this month’s update on activity in cases pending before panels of the Federal Circuit where the cases involve at least one amicus brief. We keep track of these cases in the “Other Cases” section of our blog. Today, with respect to these cases we highlight several new opinions issued, relating to takings, trade, patents, and trademarks. Also, there was one principal and response brief filed in a patent case and two new reply briefs filed in two other patent cases. There were no new cases pending before panels of the Federal Circuit that attracted at least one amicus brief. Here are the details.
Update on Important Panel Activity
Here is an update on activity in cases pending before panels of the Federal Circuit where the cases involve at least one amicus brief. We keep track of these cases in the “Other Cases” section of our blog. With respect to these cases, since our last update we highlight five new opinions, four in patent cases and one in a government contract case; two new argument recaps, one in a trademark case and one in a trade case; and three new cases, one a design patent case and two utility patent cases. Here are the details.
