On 3/01/2020 9:57 am, wrote:
Patent granted for PNN (Non Newtonian Propulsion) in year 2000
http://www.asps.it/pat98.jpg
from www.asps.it/pnndatabase.htm , www.asps.it/doni.htm


Farily safe bet that it doesn't work, which would ultimately invalidate
it anyway. The main problem with such patents is that unscrupulous
people can use them to attract investment from those who think that a
patent is more than it is.

Sylvia.