( April 2, 2026, 2:37 PM EDT) -- WASHINGTON, D.C. — A Texas federal judge rightly granted summary judgment of noninfringement in favor of defendant-appellee entities accused of infringing a patent describing air purifying technology because the patent applicant explicitly narrowed the scope of patent claims during prosecution history to exclude the type of reflective surfaces present in the accused devices, a Federal Circuit U.S. Court of Appeals panel ruled April 1....