https://patentbrief.org/company/international-standard-electric-corp Plain-English explanations of patents assigned to International Standard Electric Corp , newest first. en-us Sat, 13 Jun 2026 10:14:17 GMT https://patentbrief.org/patent/us/2485586/geiger-counter A 1947 patent for a radiation detection device that uses a gas-filled tube to identify and count high-energy particles. Tue, 25 Oct 1949 00:00:00 GMT https://patentbrief.org/patent/us/2485586/geiger-counter https://patentbrief.org/patent/us/2266401/pcm-pulse-code-modulation-reeves A foundational 1938 patent describing how to convert continuous sound waves into a stream of digital numbers for transmission. Tue, 16 Dec 1941 00:00:00 GMT https://patentbrief.org/patent/us/2266401/pcm-pulse-code-modulation-reeves