Freedom to Use
Just because you patented it doesn't mean you can practice it.
In the presentation Tracy Jong and I made on April 19 we discussed 5 common mistakes that inventors make regarding their patents. Number 1 on the list was this one. Not establishing "Freedom to Use". You spent a lot of time and money coming up with your invention and more getting it patented. Surely you can now go ahead and practice it without opposition?
Maybe not-- A patent gives you the right to exclude others from making your invention, not necessarily allowing you to practice it yourself. For example there may be other hurdles you must leap. If you have invented a new drug or medical device you may need FDA approval. If you have invented a device with military or security implications, the government may classify it an prevent you from marketing it.
But these barriers are usually visible to the inventor. What may not be visible is that your invention may be an improvement on someone elses patented invention.
Then you can't use your invention without the other inventors permission to use there's.
If you invent the first Green widget. You can prevent others from making it. But if the general class of Widgets was patented by someone else, you will need a license from them.
Suppose they were making red wigets and their patent is sufficiently broad to cover widgets in general but made no mention of color.
A Freedom to use patent search can uncover these land mines before you step on one of them. Then you can find a way around them or negotiate a license with the patent holder. Often these are old patent that will expire soon anyway.
Checkout AlaCarte Patents to learn more