Apple has recently submitted an application for trademark registration of its groundbreaking self-developed chip, "C1," falling under the international classification for scientific instruments. The trademark is currently in the preliminary stages, awaiting thorough examination. The C1 chip represents Apple's maiden foray into designing its own cellular modem chip, which was unveiled in February 2025 and featured prominently in the iPhone 16e model. This development signifies a pivotal milestone in Apple's journey towards establishing a comprehensive chip technology ecosystem.