"Busicom actually owned the design of the 4004 and had exclusive rights to its use, but eventually agreed to let Intel sell the chip commercially" That bit is

"Busicom actually owned the design of the 4004 and had exclusive rights to its use, but eventually agreed to let Intel sell the chip commercially" That bit is not widely known. Also, the article skips over the 8085 (a popular remake of the 8080), and does not mention the original 8086. This was the full 16 bit version forerunner of the 8-bit bus 8088.