Proportion of patent shares

If the investor thinks that the patentee's patent has great potential market value and the investor is willing to let the patentee hold more shares, then 70% is not very outrageous.

Whether to participate in management shall be negotiated by both parties. Usually, if you don't participate in management, the proportion of shares will definitely decrease. After all, your income depends on the other party's guarantee that they will not work for you for nothing.