Irvine-based RFaxis, the semiconductor startup headed by Mike Neshat, reported Thursday that the firm has just received four patents for its technology. The firm said it now has had more than 30 patents filed for its architecture of its RF, front-end integrated circuits. The firm did not details the patents, however, the U.S. Patent and Trademark Office shows that patents No. 8,019,289; 8,073,400; 8,073,401; and 8,078,119 were all issued to the company between September and December of 2011. All four patents name Oleksandr Gorbachov -- the firm's CTO -- as the inventor. The firm was represented by Stetina Brunda Garred & Brucker in the filings.