User presence determination

Assignee

• Google

Inventors

• Taylor Keith Umphreys (4 patents)
• Siddhant Bhargava (4 patents)
• Benjamin Jerming Chang (5 patents)
• Brian Keith Hales (2 patents)
• Steven A. Hales (16 patents)
• Craig Thomas Rohe (2 patents)
• Thomas Joseph Gurka (2 patents)

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