SAN FRANCISCO — Samsung Electronics defeated Apple’s bid for a court order barring US sales of some Samsung smartphones that were found to infringe Apple patents in a ruling that may affect a trial over current products.
US District Judge Lucy Koh in San Jose, Calif., for a second time rejected Apple’s request to ban more than 20 Samsung smartphones, no longer on the market, that were at issue in the companies’ first US patent trial in 2012.
The decision may give Samsung leverage as the world’s top two smartphone makers continue to talk to a mediator about a possible settlement before the companies’ next patent trial, scheduled for March 31, which covers newer devices.
‘‘The real importance of this ruling is what it tells us about Apple’s chances of winning a future injunction against Samsung,’’ said Brian Love, a professor at Santa Clara University law school. ‘‘Right now, those chances don’t look very good.’’
In their battle to dominate the worldwide smartphone market, Samsung and Apple have spent hundreds of millions of dollars in legal fees claiming each copied features of the other’s products since Apple initiated the fight in 2011.
Samsung accounted for 28.8 percent of global smartphone shipments in the three months ended Dec. 31, down from 29.1 percent a year earlier, Framingham-based market researcher IDC said in a Jan. 27 statement. Apple was second with 17.9 percent, IDC said.
Koh previously found in rejecting a sales ban that Apple didn’t prove that Samsung’s infringement caused irreparable harm. A federal appeals court later ordered her to reconsider her ruling, saying she set too high a standard in requiring Apple to show that patented features of its phones are the ‘‘sole driver’’ of consumer demand.
Koh concluded Thursday that the iPhone maker hasn’t met a more basic requirement that its patented touchscreen software fuels demand for the phones at issue.
In a final judgment, Koh also approved the $929.7 million penalty against Samsung that was the product of two separate jury verdicts on infringement damages.
Apple Inc., based in Cupertino, Calif., has argued in court filings that a sales ban is more important to the company than monetary damages, and has complained to Koh that Samsung releases new generations of products faster than courts are able to issue patent-infringement rulings.
Samsung Group, based in South Korea, urged Koh in January to deny the ban on the ground that Apple’s real aim was to make an ‘‘end run’’ around any injunction by pushing for another order targeting newer products by the Galaxy maker that haven’t been proven to infringe its rival’s patents.
The Galaxy maker contended that an injunction would create ‘‘fear and uncertainty’’ for carriers and retailers about what Samsung products they could legally offer.
Samsung said in an e-mail it is disappointed by Koh’s ‘‘erroneous calculation’’ for damages, and plans to appeal the ruling that it has infringed the patents at issue.
The companies told Koh Wednesday they are still negotiating through am unidentified mediator even as they prepare for the March 31 trial. Koh has urged them to pursue settlement talks before trial.