In fact, a patent is not an exclusive right to anything at all, but rather the right to exclude OTHERS from
making,
copying
using,
selling (or offering to sell), or
importing
any infringing articles or processes, from the time the patent is published to the time it lapses.
So you could talk to the others with a aim to SHARE your use of theirs but not be allowed to use it otherwise.
It has to be original. In my experience.
WE/I developed different ways of defending doors from attack. A variation on a older version that was not patented but as the idea was accepted as being made by another we failed in the application. Now it is made by several under different names.
An example............you design a "KEY" the trouble is the definition of a key is roughly " An item that opens a locked door"...............so that would include a hammer, a screwdriver, a size 10 boot. As each can open a door.
So all those with "Do not duplicate keys" may find the 10 yr limit has been reached and anyone can now duplicate them. Go try it.........some of you will be shocked at who can cut your "Security Keys".
I have also seen a very original system for windows and doors as a steel barrier and we bought into it for 40k, I then found a weak link and we bailed out. It is still sold but not as it was designed for. But we hold the patent together.
If you have something that is really new ( believe me its more and more difficult now until tech and materials develop more). Say nothing, get the drawings and get it made with a contract with the makers for non disclosure, test and test. Then test again. Then apply for the patent. Make sure the people you use, and you will..also have a non disclosure.
Then go ahead if confident and have the funds or backing.
Or some snake will patent it for you in their name.
Been there, lost out.
Hope this helps.