I have come up with new type of hardware and software ideas , and I figured out that I better of rather need patents. I can use my money and start applying for patents, but will soon not be enough, so I have gathered some investors contact information and the required materials and my Pitch Deck is now ready. But I constantly get feared that, what if I go and pitch my idea to a investor and he sees the opportunity and says no and then goes and patents it for himself!!! I don't want that to happen when I disclose my patent or invention to the investor. How can I make sure of this and prevent such things from not happening?