Getting a patent for a drug is a big process in the pharmaceutical industry. From filling of date how long we are supposed to pay a maintenance fee, what is an exact lifetime of a patent?
mm for now Drug patents were valid for 20 years after the invention of the product . In most cases, after screening, this time frame is reduced to 10 years after finally bringing the drug to market.
Patenting gives the owner the legal right to keep out others from making and providing the same invention of the product. In healthcare industry patent is mainly done for the items such as drugs. AND IT LAST FOR 20YEARS FROM THE DATE OF FILING THE PATENT.
The period of patent was increased from 7 to 20 years in India, as it got some extension to introduce new measures of being a developing country. And it is must for availability of patents for products and the processes that fulfils established criteria.
Patents will last the full 20 years from the date of filing unless the patent is somehow found to be invalid or the inventor does not pay maintenance fees 3.5, 7.5, and 11.5 years after the original patent is granted.
Sometimes patent duration can be extended, and pharmaceutical companies, which make about 80% of their overall revenue because of their patents, often try to extend patent terms for as long as they can. Once drug patents fully expire, the way is paved for generic competitors to undercut prices significantly. Therefore, pharmaceutical manufacturers use many legal techniques for prolonging drug patents. Some of them are straightforward, while others are more complex and legally risky.