[1] I guess what's confusing me is that if people are only patenting that portion of an invention that is required to block others from producing a device how do I know that remaining portions of what I want to do don't infringe?
[2] Maybe I'm wrong but it seems the patent would be worth more if I can include more of what I've actually designed. I figured I'd submit it as dependent claims and they'd tell me what parts if any aren't acceptable. what am I missing?
Hiya, you need to separate out [1] from [2] in your head (this is not grumping at you, by the way - I get confusion on the interaction between patentability and infringement or "freedom to operate" all the time, even from experienced scientists who have a lot of experience in filing patents).
There is essentially no connection between, on the one hand, what you put in your patent regarding your invention (and how the PTO examines it), and on the other hand, whether or not practicing your invention will infringe another's patent. This is because the PTO's examination of your claims will focus broadly on what is
disclosed by one or more prior art references - i.e, whether they
disclose what is in your claims. Whereas whether you infringe is based
only on what an in-force patent
claims. The PTO rarely pays any attention to a prior art patent's claims while examining your patent, because it's much easier to learn what a prior art patent
discloses by focusing on the Abstract and main Description portions of the prior art patent.
[1] to determine whether or not you can practice your invention without infringing one or more other person's valid patents, you would need to do a search of what you plan to do as against the claims of in-force patents. There are any number of search firms who can do a good search for you if you give them a good technical description. But interpreting the search may take legal help.
[2] you should indeed well and fully describe your invention in the text of your specification/description. But in the independent claims, your invention should be described only specifically enough to make it patentable. Yes, as you note, you can put the other items in the dependent claims. And indeed, you may need those other items in the dependent claims, to amend your independent claims, if it turns out your independent claims are not patentable.
SummaryPTO Examination of your application:
- - Your Claims versus what prior art patents (or other publications) disclose.
Your practice of your invention, "do I infringe"?
- - Your practiced invention versus what in-force patents claim.