This API uses the Google Patent Search service and gives you the ability to search over 7 million patents. The API returns a collection of GpatentResult objects. Each result object contains information about a patent - including - title of the patent, snippet style description, application filing date, patent status, patent number, patent assignees, thumbnail image URL for the patent, etc.
The new Google Patent Search API is now available and lets you search over 7 million patents via code. It is part of the AJAX Search API suite of content-specific Google search utilities such as book search, government search, code search and others.