There a book the day after Roswell by colonel Phillip Corso on the subject of the government leaking alien technology to companies after the Roswell crash. He was also a guest on the art bell radio show https://www.amazon.com/Day-After-Roswell-Philip-Corso/dp/067101756X
Amen dude. Over 5,000 suppressed patents. That's not including hidden repressed technology stored away in Deep State/Cabal bunkers and bases. Capable of completely revolutionizing our planet and the way we live as a species. All kept from us because of greed and service to self materialism. Holy smokes does it piss me off. Here's some links for anyone interested.
https://en.m.wikipedia.org/wiki/Philip_J._Corso
https://www.amazon.com/Day-After-Roswell-Philip-Corso/dp/067101756X
http://awakeningforums.com/thread/987/government-secrecy-orders-patents-inventions
http://awakeningforums.com/thread/526/replicators
https://www.youtube.com/watch?v=eNU3MLqyzPk
http://awakeningforums.com/thread/613/point-energy-advanced-propulsion-technology
The links above regard technology. Here's some further links regarding ET's that are fun to research into.
http://awakeningforums.com/thread/955/re-parked-on-side-crater
http://awakeningforums.com/thread/850/central-intelligence-agency-paranormal-phenomena
http://awakeningforums.com/thread/796/incidents-skinwalker-ranch
http://awakeningforums.com/thread/206/brown-notebook-1958
http://awakeningforums.com/thread/316/crop-circles-meanings
https://www.nsa.gov/news-features/declassified-documents/ufo/assets/files/key_to_et_messages.pdf
http://awakeningforums.com/thread/48/kryon-magnetic-service-channeled-carroll
http://awakeningforums.com/thread/666/foia-document-hypothesis-collective-consciousness
http://awakeningforums.com/thread/822/nikola-tesla-interview-light
I think this particular technology was augmented by the discoveries made in the wake of the Roswell crash. We would have reached the same conclusions eventually based on where we were headed, it just would have taken us ten times longer or something like that.
Recommended read: The Day After Roswell.