A judge in San Jose, Calif., heard arguments in Google's suit against Microsoft . Friday, but did not make a final decision as to whether a tentative ruling made the previous day in the case would stick, according to lawyers from both companies.

Thursday, Judge Ronald Whyte issued a tentative ruling in a U.S. District Court in San Jose to grant Microsoft's motion to stay, or put on hold, Google's case in California. The suit was filed in response to an earlier suit by Microsoft against Google and a former Microsoft employee, Kai-Fu Lee, over charges that Lee violated a noncompetition clause between him and Microsoft when he took a position at Google.

Google originally filed the California case in a state court but it was moved to a federal court July 29 at Microsoft's request.

Predictably, both companies Friday expressed optimism about the final ruling Judge Whyte will hand down. The judge did not specify when he would enter his final order.

According to Karl Quackenbush, lead attorney for Microsoft, it appears a tentative order filed Thursday granting Microsoft's motion to stay the case in California and allow Microsoft's case against Google in Washington state to proceed, will be made final.

"We’re very pleased and encouraged by the tentative order granting Microsoft’s motion," Quackenbush said in an interview following the San Jose hearing Friday. "If entered as a final order, which we hope and expect it will be, the Washington case will proceed on its expedited schedule."

However, Google litigation counsel Michael Kwun said Friday that the judge appeared interested in hearing arguments from both sides about the implications of staying the case or granting Google's request to declare the noncompete clause unenforceable under California law.

"We were pleased that the court seemed to be interested in the issues," he said. "It seemed to me that [Judge Whyte] wasn't sure which way to go. We trust he'll pay close attention to the arguments we raised and we look forward to his ruling."

Microsoft filed a lawsuit July 19 in a Washington state Superior Court over Google's hiring of Lee to spearhead new research and development efforts in China.

Google filed its California countersuit asking the court there to let California law apply and nullify the noncompete agreement. California laws are more lenient than Washington state laws in terms of how binding noncompete agreements are.

The IDG News Service is a Network World affiliate.