Gabriel Technologies Corp., a developer of global-positioning technology, filed for chapter 11 bankruptcy last week after a billion dollar lawsuit the company filed in 2008 against Qualcomm Inc. backfired, Bloomberg News reported yesterday. Having sued Qualcomm for patent infringement, Gabriel's doom was sealed in October when a federal district judge dismissed the last of the claims against San Diego-based Qualcomm. Earlier this month Qualcomm won a $12.4 million judgment against Gabriel for pursuit of what Qualcomm called an "objectively baseless" lawsuit brought in "bad faith." Gabriel claimed in the chapter 11 petition that assets and debt both exceed $10 million. The case is In re Gabriel Technologies Corp., 13-30340, U.S. Bankruptcy Court, Northern District California (San Francisco).