3 of the 9,670 companies with a portfolio page, filed under É
Click a column heading to sort.Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly)
| Company | Currently held |
|---|---|
| École Polytechnique | 5 |
| École Polytechnique Fédérale de Lausanne | 4 |
| École Polytechnique Fédérale de Lausanne (EPFL) | 23 |
Companies are grouped from ownership conveyances recorded at the USPTO. This index lists the companies with a compiled portfolio page. Every other company with a granted US patent or a published US application has a record page, reachable by search. How this record was built