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Apple, Google Shaped by Silicon Valley Judge Koh’s Gavel

Lucy H. Koh’s fingerprints are on your Gmail account, your smartphone, and, if you’re a Silicon Valley engineer, possibly your prospects for changing jobs.

Koh, the California federal judge overseeing the three-year patent battle between Apple Inc. and Samsung Electronics Co., has so far thwarted the iPhone maker’s bid to keep Galaxy phones off the market. Now, after a jury found early this month that both companies infringed patents, the firms are poised to take new runs at persuading Koh to order sales bans on the other.