At least the simple BiSS Interface User license Agreement (BUA) is required for applications using integrated circuits with embedded BiSS Interface from a licensed manufacturer.
iC-Haus GmbH is the holder of the German patent DE 10310622 B4 (BiSS-C patent). The process claims of this patent protect the use of the BiSS-C protocol. With the purchase of ICs with implemented BiSS-C interface from iC-Haus GmbH or a licensed manufacturer you do not receive a license to use the BiSS-C Patent. iC-Haus GmbH reserves all rights regarding the BiSS-C Patent. iC-Haus GmbH is willing to enable all purchasers of such ICs to use the BiSS-C protocol free of charge in the framework of the BiSS-C patent. Therefore it is necessary to sign the BiSS-User Agreement (BUA) to get a free of charge license of the BiSS-C patent.
Despite this iC-Haus GmbH will not assert the BiSS-C Patent against purchasers of the ICs in regard of the use of the BiSS-C interface with the purchased ICs, as long as the purchaser, dominant shareholders of the purchaser or affiliates controlled by the purchaser do not file a revocation action regarding the BiSS-C Patent and do not assert a claim against iC-Haus GmbH or third persons in relation to the use of BiSS-B or BiSS-C interface. This is also applicable to the benefit or to the disadvantage of third persons, who buy the ICs from the purchaser.
Do you want to implement the BiSS-C protocol within your own ICs (FPGA or other PLD, ASIC) for the use in your self developed devices (for example encoders or sensors), it is with regard to the BiSS-C patent necessary to beforehand enter into the BiSS Device Manufacturer (BDM) Agreement. Insofar you aim to implement the BiSS-C protocol within your own ICs and sell them to other device manufacturers, it is relating to the BiSS-C patent mandatory to enter into the BiSS IC-Manufacturer (BICM) Agreement.