Assignee

Patent assignee search across every name a company used

A patent assignee search lists the patents recorded to a company or person. To get a complete list you have to search every name the owner used, including spellings, former names and merged entities. Assignee groups those names and returns every US patent recorded to them, with the document that put each patent there.

Start with one patent you know

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.

Why a simple name search misses patents

Owners appear in the record under many names. A company may be recorded as Inc. in one document and Incorporated in the next, under a name it used before a rebrand, or under a subsidiary that later merged into the parent. A search for one spelling returns part of the portfolio and gives no sign of what is missing.

  • Punctuation and legal suffixes that differ between documents
  • Former names before a change of name
  • Acquired companies that merged into the owner
  • Subsidiaries that hold patents for a parent
  • Patents assigned at grant but sold later, which the owner no longer holds

How Assignee builds the owner list

Assignee normalizes names across recorded documents and links names that a recorded merger or change of name connects. The result separates patents the company holds today from patents it held in the past and sold, so you see the current portfolio and its history side by side.

  • Patents where the company is the current owner of record
  • Patents it acquired, with the date and the seller
  • Patents it sold, with the date and the buyer
  • Patents pledged as collateral, with the secured party

On the Firm plan, owner lists cover whole corporate families and export to Excel with reel and frame references.

Who runs an assignee search

  • Licensing teams preparing outreach to the real owner
  • Litigators checking what else an opponent holds
  • Analysts sizing a target portfolio before a deal, see patent due diligence
  • Brokers finding sellers and buyers in a technology, see sell my patent
  • IP teams auditing their own recorded portfolio after acquisitions

The assignee on the patent is not always the owner

The assignee printed on the front page of a patent is the owner when it issued. The owner today can be different. Assignee follows the recorded documents after grant, which is why a company's list here can be longer or shorter than a search on the printed assignee field.

Keep the list up to date

Save an owner list and add it to patent monitoring. When the company records a new acquisition, sale or security interest, you receive an email.

Questions about patent assignee search

Can I search by a person's name?

Yes. Assignee searches individual inventors and owners as well as companies, using the names as they appear in recorded documents.

Does the search include pending applications?

Yes, where an assignment has been recorded against the application. Unpublished applications are not public and do not appear.

How is this different from searching the assignee field in a patent database?

Patent databases usually search the assignee printed at grant or publication. Assignee searches recorded transfers, so it reflects sales and mergers after grant.

For the full method, see the USPTO assignment database page.