Seastone LC says the U.S. government has granted the Provo, Utah-based gift card packaging company a patent for a plastic tray designed to carry a gift card in a card holder or box. Seastone has sold 25 million packages that retailers will resell to consumers for gift card packaging. Of those, about 20 million include the tray, according to Eric Child, Seastone president. While Though Seastone does not plan to license the patent to other gift card-packaging companies, Child says the company eventually may do so. Seastone works with most major retailers, so merchants will not need to change the packaging they offer because of the patent, he says.