What steps should I take to protect my invention before filing for a patent?

As a lawyer, I would advise you to take several steps to protect your invention before filing for a patent. Here are some recommended actions to consider:

1. Conduct a thorough search: Before filing a patent application, it's important to conduct a comprehensive search to ensure that your invention has not already been patented. You can perform a search by yourself or hire a patent attorney to assist you. A search can be done by looking through databases, scientific literature, and other sources.
2. Keep your invention confidential: If you intend to apply for a patent, it's essential to keep your invention confidential until your patent application has been filed. Public disclosure of your invention can limit your ability to obtain a patent.
3. File a provisional patent application: A provisional patent application can be a useful tool to protect your invention while you continue to refine and develop it. It establishes an early filing date, and gives you 12 months to file a complete patent application.
4. Document your invention: Keep detailed records of your invention, including your initial conception, development, and any modifications. This documentation can serve as evidence of your invention's originality and can help support your patent application.
5. Consult with a patent attorney: A patent attorney can advise you on the best way to protect your invention and help you navigate the patent application process. Patent attorneys can also assist you with drafting a patent application that meets legal requirements, and can represent you in negotiations with the patent office.

Limitations and exceptions: It's important to note that the process of obtaining a patent can be time-consuming and expensive. Additionally, some inventions may not be eligible for patent protection, such as abstract ideas, natural phenomena, and laws of nature. If your invention falls into one of these categories, alternative forms of protection may be available, such as trade secrets or copyright.

Suggestions for further action: To ensure that your invention is protected, it's important to consult with a patent attorney early on in the process. Additionally, you may want to consider obtaining international patent protection if you intend to market your invention outside of your home country.