SANTA ANA -- Postal Inspectors are seeking the public's assistance to locate a father-son team wanted on mail fraud charges.

Robert Louis Carver, 56, previously of Irvine, and his son, Robert Louis Carver II, 36, formerly of Mission Viejo, were indicted Wednesday by a federal grand jury in Santa Ana, California. The 14-count indictment alleges the two men engaged in a scheme that bilked over 300 investors out of more than $20 million.

According to the indictment, the Carvers operated their scheme under several business names -- Brookstone Capital, Brookstone Biotech Ventures II (BBV II) and Lincoln Funds International, all of which were based in Costa Mesa.

Brookstone Capital purported to be an investment company specializing in unique, alternative investment opportunities. BBV II claimed to offer investments -- and significant, long-term capital appreciation -- in the biotechnology and life sciences industries. As for Lincoln Funds International, promotional materials claimed that it was incorporated in 1996 and had offices in city across the globe, when in fact the company was incorporated in 2006 and only had the one office in Costa Mesa, according to the U.S. Attorney.

Sale agents for the companies solicited investors with various claims and promises, including that the elder Carver had significant business experience and that investors' money would be used to purchase stocks.

According to the indictment, the Carvers failed to tell potential investors that the senior Carver had a criminal history and had been sued by California regulators. Additionally, the Carvers allegedly failed to file taxes for the businesses and misappropriated investors' funds.

Postal Inspectors urge anyone with information regarding the whereabouts of Robert Louis Carver or Robert Louis Carver II to contact the Postal Inspection Service National Law Enforcement Communication Center at 877-876-2455, select option 2, refer to Case No. 1730332-MF. Callers may remain anonymous.