Mr. Snake.
Well first things first, so u are developing an OS, good man.
Next, forget about TECHNOLOGIES for a moment, Now lets consider your requirements, COPYRIGHT for your work., fine.
Follow this steps:
You will have to go the old way Snake. Yes, first create a COMPANY, it can be a PRIVATE LIMITED company or any LIMITED company. Go to Industrial Office (government ) get your company registered there, get your company's NAME and LOGO registered along with. For Eg: Microsoft Corporation or Jasubhai Digital Media is the Name of the COMPANY which is registered with the government of the respective countries which there corporate office is located. This is tedious thing to do, u will need some professional help for a country like India, full of curruption MAN.
Next, Deside a BRAND NAME for your OS, again for eg: Windows XP etc are brand names of the companys products. You can have TRADEMARK on them, this can also be done during the registration of your company.
Next, In order to get your Company Registered, u will need various paper work to be done, u will need to show them the PROJECT PLAN or SCHEME or PROJECT REPORT, which will contain the projected CASH FLOW, Financial capability , Financial backup (BANK LOAN ), Plant & Machinery, LABOUR or Employee, etc. deployed or shall be deployed in your company. (If u donot register your company with the government no bank will give you loan on subsidy or any type of loan to set up the company.
You will also have to obtain FACTORY LICENCE or similar LICENCE from the FACTORY LICENCING authority, they will conduct an inspection of your land and building and machinery and provide LICENCE to carry out the business.
Once u get the COMPANY REGISTERED half of your COPYRIGHT issue will get solved.
Now, lets come to the TECHNOLOGY part of it. U will have to code some validation rules or KEY concept and Activation Concept into the software, so that no one will be able to install it or use it, or can crack it.
The above is only an idea as to let u know the inside story or a COMPANY, there are more paper works to be done, and I cannot detail it here. So, take time out and go visit a Consulting Firm or a lawyer would can advice u on all this matter.
Let me inform u that this matter are not so easy as u might be anticipating it. Developing Software is one thing and Selling it legally is another. So be carefull.
NOTE: The name of the company reffered to in this thread belong to the respective Company's. The names were used only for illustration purposes only.