Mealey's (January 23, 2023, 2:10 PM EST) -- SAN FRANCISCO — Two construction supply manufacturers in a Jan. 20 answering brief to the Ninth Circuit U.S. Court of Appeals aver that a federal judge properly refused to certify a class of homeowners bringing claims for violation of California’s unfair competition law (UCL) based on the manufacturers’ sale of allegedly defective connectors and anchors, writing that the plaintiffs’ expert failed to present evidence of a common defect....