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One year ago, I started an open source project, which is most popular in these days. This project is mostly used by my area's developers.

I am expecting great future of this project. Is it advisable to patent the project? I have added more features and released a license version (trying to make it commercial version).

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I guess it depends.

I'll answer this on the presumption that your invention is patentable. Note that not everything is, but deciding whether your particular invention is patentable is the job of a patent professional, or at least some more research than falls under the scope of this question. I'm also leaving out anything pertaining to Alice, and patentability of software in general. That's a pretty broad topic, and you'd likely be best to speak with a patent professional about that as well.

Another really important thing to think about is that the United States offers a one-year grace period on patenting something post-public-disclosure, but other countries don't. You say you developed this a year ago, so if it was actually 366 days ago that you launched, or if you're looking for a patent in a country other than the United States, you've already lost your rights to patent anything you announced or made publicly visible at that time. If you're constantly improving or bringing in new features, and those are what you want to patent, that's not an issue.

First off, when talking about software, you should ensure you understand the differences between copyrighting and patenting your application. Even that sentence simplifies the matter a bit more than I'd like for it to. I won't get into copyrights, but in essence, registering a copyright (and you don't, strictly speaking, need to register it) will protect you from people stealing your code verbatim. Legal practice is always more complicated than legal theory, but that's the fundamental conceit.

A patent offers you protection, and I imagine you know this, to stop others from performing your invention, as described in the patent's claims. That means you'll have control over the algorithm--or whatever it is you're looking to obtain a patent on. In a pure open-source project, that may or may not matter. Particularly if you're going for the MIT license, or something similar that offers other developers a lot of rights, having a patent will probably just cost you money and not gain you anything.

However, you mention commercializing the software. If you're doing that, it can be beneficial to own the rights to stop other people from swooping in and stealing your implementations to sell as their own.

Ultimately, I can't tell you whether a patent is the right way to go or not. It's a business decision. Look at what your invention is, decide whether it's patentable (probably by speaking to a professional to whom you can disclose it), look at how much you intend to make, or how much you'd lose from other people stealing your code, and decide whether the (very approximately) $20,000 a patent might cost over its lifetime would be the best way to spend that money.

  • @Mathew-Haugen Its a broader sense, you answered it. This is what I was looking for. I will copyright the name of product. Marking your reply as a best answer. – Gaurav Aroraa Apr 18 '15 at 22:48
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    @GauravKumarArora Trademark might be a better decision for a name. You might want to read my answer over here about the differences of them. – Matthew Haugen Apr 18 '15 at 23:00
  • you should copyright the broader aspect along with separate patent application with various modules. To generate revenue you should make other modules paid as versions. – Pushpak Apr 19 '15 at 5:01
  • @MatthewHaugen - Great to read the link you specified and I got nearly things what I was looking for. Its great help mate! – Gaurav Aroraa May 3 '15 at 12:53
  • @Pushpak- Can you please elaborate what do you mean by copyright to other model to generate revenue. I did not get it properly. – Gaurav Aroraa May 3 '15 at 12:54

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