What information is available in the USPTO’s assignment database?

What information is available in the USPTO’s assignment database?

The USPTO’s assignment database contains a wealth of information related to patent ownership. According to MPEP 301.01:

‘The USPTO maintains a database containing the assignment records of patents and patent applications. The USPTO also maintains a cumulative index of number of assignments recorded on the day in which they are recorded.’

The database typically includes:

• Patent or application numbers
• Names of assignors and assignees
• Dates of assignment execution and recording
• Brief descriptions of the interests conveyed
• Reel and frame numbers for locating documents

This information is crucial for determining the current ownership status of patents and applications, which is essential for various legal and business purposes.