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The Patent Office is responsible for examining, granting, and administering patents and trademarks for inventions and innovations. It also protects the intellectual property rights of inventors and owners.

A utility patent lasts for 20 years from the date of filing, while a design patent lasts for 15 years from the date of grant. A plant patent lasts for 20 years from the date of filing, except for certain circumstances.

A trademark is a word, phrase, symbol, or design that identifies and distinguishes a product or service from others. It is used to protect a brand's identity and prevent others from using a similar mark.

Yes, you can apply for a patent yourself or through a patent attorney or agent. However, it is recommended to hire a professional due to the complexity and technical requirements of the application process.

A copyright protects original works of authorship, such as literary, musical, and artistic works, while a patent protects inventions and innovations. Copyrights last for the life of the author plus 70 years, while patents last for a set period of time (e.g., 20 years for a utility patent).