When you desire patents for inventions it is understood that one needs to undergo several stages before finally acquiring the much coveted patent. The law recognizes five “rights” periods in the life of patents for inventions. These five periods one undergoes in acquiring patents for inventions are:
1. Invention conceived but not yet documented. This is the phase in applying patents for inventions when an inventor conceives an invention, but has not yet made any written, signed, dated, and witnessed record of it.
2. Invention documented but patent application not yet filed. After making a proper, signed, dated, and witnessed documentation of in applying patents for inventions the inventor has valuable rights against any inventor who later conceives the same invention and applies for a patent. This phase enables the inventor the legal right to sue and recover damages against anyone who immorally learns of the invention (for example, through industrial spying).
3. Patent pending (patent application filed but not yet issued). During the patents for inventions pending period, including the one-year period after a provisional patent application is filed the inventor can sue and recover damages against anyone who uses the invention.
4. In-force patent (patent issued but hasn’t yet expired). After the patent issues, the owner of the patents for inventions can bring and maintain a lawsuit for patent infringement against anyone who makes, uses, or sells the invention without permission.
5. Patent expired. After the patent expires, the owner of patents for inventions has no further rights. An expired patent remains a valid “prior-art reference” forever.

Drug patent data can be accessed online. All patent applications for all industries are reviewed by trained Examiners at the Patent and Trademark Office (PTO). The effective pharmaceutical patent life as revealed in drug patent data which starts from the time from market entry to patent expiration is 11.7 years.