Agreed. Also, depending on this joker's priority date, IF his patent is issued you have a period to contest the validity of his patent by submitting proof you w

Agreed. Also, depending on this joker's priority date, IF his patent is issued you have a period to contest the validity of his patent by submitting proof you were live (or other documentation showing your invention) and thus your work would be considered prior art. His patent application will be posted on USPTO sometime in the future depending on when the application was submitted (and well before it is issued, IF it is even issued) so you will be able to see what his claims are. Ask him for his patent application number, collect ANYTHING you have that shows the earliest point you went public with your invention, and CONTACT A LAWYER. DO NOT give him a dime.