Assignee

Patent ownership search that shows the owner today

To find who owns a US patent, look up its recorded assignments at the USPTO and follow them from the inventors to the last recorded transfer. Assignee does that in one step. Enter the patent number and the report opens with the current owner of record, the date of the transfer and the document behind it.

Who owns this patent

Trace the owner of any US patent

Enter a granted US patent number like 9,876,543 or its publication number like US9876543B2.

Report

Pick a date to see the changes recorded since then.

Include security interests and releases

No number at hand? Try a sample patent

Public USPTO records. No card required. Your searches stay yours.

Ownership report

US 9,567,890 B2
  1. Fetching USPTO assignment records
  2. Reading conveyances
  3. Linking assignors to assignees
  4. Checking for gaps and open security interests

Current owner of record

Owner of record

Phinia Jersey Holdings LLC

Recorded on

May 31, 2024

Reel and frame

067592 / 0662

Conveyance

Assignment of assignors interest

Chain of title

Title risk flags

No issues found in this check

Create an account to see every assignment in the chain, all title risk flags and the full PDF report.

This report shows what is recorded at the USPTO. Assignments that were never recorded do not appear in any public register. It is not legal advice.

How to find the owner of a US patent

  1. 1

    Find the patent number on the product, in the marking notice, in a letter or in a patent database.

  2. 2

    Check the assignee printed on the patent. It shows the owner at grant, not today.

  3. 3

    Look up recorded assignments for the patent and its application in the USPTO assignment records.

  4. 4

    Order them by date and follow each transfer, including mergers and changes of name.

  5. 5

    Check for security interests and whether each one was released.

  6. 6

    Note any gap where the chain does not connect.

Assignee runs steps 3 to 6 for you and shows the result as a single report.

What the ownership report shows

  • Current owner of record, with recording date and reel and frame
  • Every earlier owner, in order
  • Security interests and their release status
  • Title risk flags where the record does not connect
  • Links to every recorded document

When you need a patent ownership search

  • Before you send a licensing offer or a notice letter
  • Before you file or answer an infringement claim
  • Before you buy, sell or lend against a patent
  • When you receive a demand letter and need to know who is behind it
  • When a patent in your field changes hands and you want to know why

See all scenarios on patent landscape analysis.

Limits of any ownership search

Public records show recorded documents. A sale that was signed but not recorded, an exclusive license that was never filed or a court order that was not recorded will not appear. When the record is silent or incomplete, the report says so, and those patents are the ones to review with counsel.

Questions about patent ownership search

Is the owner of record the legal owner?

Usually, but not always. The owner of record is the last assignee in the recorded chain. An unrecorded transfer can change legal ownership without changing the record.

Can I search an expired patent?

Yes. Ownership of an expired patent still matters for past damages, and its recorded history remains in the register.

Can I search by application number?

Yes. Enter an application number to see assignments recorded before grant, which is often where inventor assignments live.

Search a whole company with the patent assignee search or follow changes with patent monitoring.

Trace ownership