A patent for a technology that shields users from nearby video cameras has emerged. The patent describes a detector that would blur the images of people on portable camera displays, preventing video surveillance. The patent surfaced following Google's release of Google Glass for sale by the general public. Google is seeking a patent for a contact lens style for Glass that would escape public detection. Google is also seeking to trademark the word "glass," which the US Patent and Trademark Office opposes. EPIC previously submitted comments to the Federal Trade Commission recommending the suspension of facial recognition techniques pending the establishment of privacy safeguards. For more information, see EPIC: Google Glass and Privacy, EPIC: Facial Recognition and EPIC: Federal Trade Commission.