C3 Patent and Intellectual Property Law

Apr072010 | Steve O'Donnell

You probably don't want a provisional patent application

A number of “inventor assistance” services tout a provisional patent as a low-cost way of obtaining some degree of patent protection. Although a provisional is a little cheaper at the start, many people will wind up paying more in the long run than if they instead focused on a non-provisional application.

As I said before, I usually think of patents as consisting of two parts: the claims and everything else. A provisional patent is the “everything else.”

When I draft a patent, I start with what I consider the two hardest sections: the claims and the summary. The claims are tricky because they define the covered invention in as precise language as possible; the summary is tricky because it’s the “quick read,” plain language summary of the claims.

The claims are written for an intended audience of other patent lawyers and federal judges; the summary is written for potential infringers to read and hopefully come to the conclusion that a license makes better business sense than defending a lawsuit.

The rest of a patent is the foundation for the claims to stand on, and just like how like the visible portion of a building isn’t going to last without a solid foundation, patent claims will collapse if they’re not supported.

To carry that analogy a bit further, just as it doesn’t make sense to build a house without first considering the foundation, it doesn’t make sense to build a foundation without knowing what you’re going to build on it. For that reason, it doesn’t make sense to draft a provisional patent application without knowing what the claims are going to eventually look like.

If one does opt to file a provisional application there is likely going to be some degree of work duplication when, a year after the application is filed, a patent attorney has to refresh his memory on the subject matter of the application and then move to drafting claims. There are also going to be filing fees associated with the process that could be avoided by not first filing a provisional application.

Certainly there are reasons to file a provisional application, sometimes the initial few hundred dollar savings in filing fees demands the course. Other times there can be a looming statutory deadline that requires an application to go out the door before someone can sit down and draft a polished application. In other situations, it might make strategic sense to have a broad provisional on file for a year before deciding what aspect(s) of the invention should be patented. Whether a provisional application is the best route for you is something to discuss with your attorney, just don’t get attached to the idea, because odds are that it isn’t.