Hello,
Having deposited 8 patents, I now file under copyright (10 € by internet), and I am at my 44th invention ....
Then I ask for the publication in all directions.
As a patent must imperatively be a system not known at the time of filing (dixit INPI), I block in this way (in principle), all pumps without leaving too much money.
You can see the way to proceed with multiple examples and info on the page presenting my inventions (bottom left):
http://inventions.a.verna.free.fr
And the type of publications at this address:
http://inventions.a.verna.free.fr/compresseur2.htm
If someone can give me successful contacts in the USA, I am interested .....
verna@free.fr