Apple said on Monday that it would pause sales of its flagship smartwatches online starting Thursday and at retail locations on Christmas Eve.

Two months ago, Apple lost a patent case over the technology its smartwatches use to detect people’s pulse rate. The company was ordered to stop selling the Apple Watch Series 9 and Watch Ultra 2 after Christmas, which could set off a run on sales of the watches in the final week of holiday shopping.

The move by Apple follows a ruling by the International Trade Commission in October that found several Apple Watches infringe on patents held by Masimo, a medical technology company in Irvine, Calif.

In court, Masimo detailed how Apple poached its top executives and more than a dozen other employees before later releasing a watch with pulse oximeter capabilities — which measures the percentage of oxygen that red blood cells carry from the lungs to the body — that were patented by Masimo.