Many IC manufacturers provide free sub-licensed PIDs from their own VID allocation. https://www.nxp.com/support/developer-resources/software-development-tools/

Many IC manufacturers provide free sub-licensed PIDs from their own VID allocation. https://www.nxp.com/support/developer-resources/software-development-tools/lpc-developer-resources-/usb-vid-pid-program:USB-VID-PID-PROGRAM https://www.nxp.com/support/developer-resources/software-dev... http://www.microchip.com/usblicensing http://www.microchip.com/usblicensing https://www.silabs.com/products/interface/request-product-id https://www.silabs.com/products/interface/request-product-id http://www.ti.com/en/download/mcu/application_for_sublicense.pdf http://www.ti.com/en/download/mcu/application_for_sublicense...