Sinus Institute of San AntonioLogo Design Contest Logo Design Contest Contests / Sinus Institute of San Antonio Sinus Institute of San Antonio has selected their winning logo design. For $300 they received 158 designs from 33 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by grafixsphere Return to Contest Return to Contest Withdrawn New #60 Withdrawn New #120 Withdrawn New #88 Discussion grafixsphere Logo Designer logo 1(This comment references Entry #60) 15 years ago grafixsphere Logo Designer logo 2...the icon is a representation of the frontal, maxillary, ethmoid and sphenoid sinuses. 2 letter S may also be seen in the negative space for Sinus and SanAntonio(This comment references Entry #88) 15 years ago grafixsphere Logo Designer logo 3(This comment references Entry #120) 15 years ago