https://patentbrief.org/company/compaq-computer-corp Plain-English explanations of patents assigned to Compaq Computer Corp, newest first. en-us Mon, 15 Jun 2026 05:59:43 GMT https://patentbrief.org/patent/us/6195698/google-search-engine This patent describes the original method for creating CAPTCHAs, using distorted text or audio riddles to distinguish human users from automated bots. Tue, 27 Feb 2001 00:00:00 GMT https://patentbrief.org/patent/us/6195698/google-search-engine