Search and read the full text of patents from around the world with Google Patents, and find prior art in our index of non-patent literature.

A patent gives an inventor a limited time of exclusive ownership. If the patent expires, it's possible for someone else to buy it.

Lapsed patents may not be permanently unenforceable. In some cases, a patent holder can reinstate a lapsed utility patent by paying overdue maintenance fees ...

Every day patents are expiring. Under the current Patent Act, patents last a maximum of 20 years from the date of filing.

The following steps need to be followed to find the expired patents in India: Step 1: Visit the Intellectual Property Website.

Why would a company spend significant money to file a patent application for a successful, already-approved drug, only to abandon it? The answer ...

The utility displays the Patents that have ceased to be in effect u/s 53(2). The displayed list is dynamic (Real time basis) and may be updated upon official ...

Patent Public Search. The Patent Public Search tool is a web-based search application for patents and patent application publications.

Complete Patent Searching Database and Patent Data Analytics Services.

In this blog post, we will explore the potential of expired patents and how they can be harnessed by research and development teams.