How Do I Put an Invention Into the Public Domain?
Nefarious Wheel writes "I have a couple of inventions — mechanical devices, based on physical principles — that I believe could transform certain aspects of industry. The trouble is, I can't afford to file patents, and even if I could, I'm not sure that would be the best way for these devices to be made available as widely as I'd like. Is there some way to publish the details of these innovations in the public domain in such a way as to protect them from being snaffled away by some patent troll? I'd be happy with a contribution (or simple attribution) model for recompense, which could be zero to whatever, but that's not as important to me as getting the ideas out there for anyone who wants to use them. This isn't copyright, and I know of no patent equivalent to Creative Commons. In short, what's the best way to protect an invention against someone filing a patent on it, short of patenting the device yourself? Can this be done?"
Once something is published, it becomes "prior art" and someone else can't patent prior art and obvious extensions to prior art.
And also once you publish it, you can't file for a patent on it outside the US, and you can only file for a US patent within a year.
Test your net with Netalyzr
You can put an invention into the public domain by simply publishing it and then failing to file a patent on it. The main thing here is to find a low cost forum that will preserve your publication for a long time.
But patent examiners aren't likely to find such published prior art unless you publish it in something that patent examiners actually read. Google defensive publication brought me a Wikipedia article explaining the concept and a short guide.
File a statutory invention registration with the patent office.
http://en.wikipedia.org/wiki/United_States_Statutory_Invention_Registration
Alternately, you can file a provisional patent application, and then just abandon it by not filing anything else for a year.
Either of these will become part of the patent office's database and thus will be searched by patent examiners.
I've used Research Disclosure publications which I'm pretty sure U.S. patent applicants are required to look through in their search for prior art.
Prior art requires that the invention be in the public domain, not simply "thought of first". This means it has to be actually published to the general public. You and I could make the same invention independently, and try and patent it, and the one to get the patent would be the first to apply, regardless of who actually made the invention first. IANAL, but I believe that in your scenario, any one of the companies would be perfectly entitled to patent the invention.
If I seem short sighted, it is because I stand on the shoulders of midgets
Of course, you can also ask a notary to certify whatever method of publication you intend to use, but there are some major drawbacks. Firstly, sometimes courts only accept publications in venues which are deemed by some non-objective standard to have a wide audience. Expect to pay to be published. Secondly, the notary will want his cut. Depending on the specific details, this can actually cost you more than filing a patent.
Oh, come on. I'm a notary. If the notary wants more than a couple of bucks per copy, you need to find another notary. In my state, maximum rates are pretty much set by law, and any notary who tried to get "his cut" would be at risk of substantial legal penalties.
That said, IANAL but merely getting something notarized probably isn't going to count as "publication". The very word implies "public" distribution.
Filing a Statutory Invention registration costs $920, with no discount for small entity. It's much cheaper to file an application and abandon it. Filing costs $330 or $165 for small entity (you are almost certainly a small entity). The filing fee can be higher if your application has a rather large number of claims or a complicated claim dependency structure. Here is the current fee schedule at the US PTO: http://www.uspto.gov/web/offices/ac/qs/ope/fee2009january01_2009jan12.htm
Either way, you must conform to the required format for the filing. Special attention must be given to drawings, so that labels and textual descriptions in drawings match the associated descriptions in the text specification (and all drawings must have descriptions). Drawings may NOT be in colour, or employ shading to distinguish areas - only cross-hatching or other fill patterns are allowed. The application must be accompanied by copies of any references or prior art cited. This is to ensure that your disclosure will be interpreted in the correct way later, even if you abandon it. Before it is printed, there may be requests for formal changes.
I recommend you become familiar with the Manual of Patent Examining Procedure: http://www.uspto.gov/web/offices/pac/mpep/index.htm
Those who can make you believe absurdities can make you commit atrocities. - Voltaire
The US is a first-to-invent country (the only one in the world, actually). In the US, if two pending applications claim the same stuff, an interference proceeding is held to determine who reduced the invention to practice first and/or who had a complete conception of the entire claimed invention first combined with due diligence thereafter in reducing the invention to practice.
If you invent something without filing for a patent on it, and then I invent it independently but I do patent it, then if I sue you for infringement, your defense could be that you were using the invention in the US more than a year before my filing date, or (as a more difficult approach) you could prove that I didn't actually invent it first.
Go here and read up on it. It's free!
At $110 to file for a small entity, a provisional patent only costs a little bit.
I appreciate the direction you're going with this, but it won't work. Provisional patent applications are not published, and won't count as prior art.
Patent applications are published at 18 months from earliest filing date, if they're still pending. Provisionals expire in one year from filing date if they're not converted to nonprovisional, so they're not pending at the 18 month point.
Disclaimer: I am a patent agent, but I'm not your patent agent. Any observations I make are most likely correct, but are not legally binding.