Star Trek: TOS 3rd Season Starfleet Science Officer Patch Embroidered Starfleet Science Officer Patch! From Season 3 of Star Trek: The Original Series! Add to your Starfleet uniform! This patch was worn on uniforms of Science and Medical Officers in Star Trek: The Original Series. This patch is beautifully embroidered with great detail and will put the finishing touches on your uniform. Patch measures 3 1/4-inches tall x 2-inches wide.