That’s right, don’t believe it easily.
Especially the ridiculously high prices promised ~ millions to tens of millions~~
Many patents have not been evaluated on the value of intangible assets. Business people are very smart. How is this possible? Giving so much money so rashly?
If you go through a patent agency, you can consult your agency; if you apply for a patent yourself, you must be more vigilant. Just remember one sentence:
Never give money!