Intel did indeed later license AMD to produce some clones, but it was not due to their good heart, but those were cross-licensing deals, with AMD producing clon

Intel did indeed later license AMD to produce some clones, but it was not due to their good heart, but those were cross-licensing deals, with AMD producing clones of some Intel chips and Intel producing clones of some AMD chips, which could be used as peripherals for the Intel CPUs. Then there was the big licensing deal for Intel 8088 and its successors, which was forced by IBM upon Intel, in order to have a second source for the critical components of the IBM PC.