Ownership network
Asserters.
Every entity that has appeared as an assignee on a tracked US patent. Built from structured records extracted from each patent’s assignment-history dossier. Click any column header to sort; defaults to most cases filed. Entities markedNPE orshell LLC are flagged this way by the model from the patent dossier — known asserter lists, no products in commerce, registered-agent addresses, single-purpose Delaware/Texas LLCs. These classifications are inferences, not determinations, and may be wrong — treat an entity marked NPE or shell LLC as a possible one, to verify, not a confirmed one.
5 possible patent-rental round-trips — patents that moved A → B → A while B filed at least one infringement suit during its tenure. The round-trip is a structural pattern, not proof of intent: it can also reflect a security interest and release, a correction, or a financing deal. Flagged rows are marked below — treat them as leads to verify.
| Entity | Type | Patents now | Patents ever | Cases filed | Connections | Flags |
|---|---|---|---|---|---|---|
| Baxter International Inc.; Baxter Healthcare SA | operating co | 1 | 1 | 0 | 1 | |
| Aist Solutions Co. | — | 1 | 1 | 0 | 1 | |
| SII Semiconductor Corporation | operating co | 1 | 1 | 0 | 1 | |
| AXIS AB | operating co | 1 | 1 | 0 | 1 | |
| TIGERMARK, A CORPORATION OF MA | operating co | 1 | 1 | 0 | 1 | |
| National Institutes of Health (NIH), U.S. Department of Health and Human Services | — | 1 | 1 | 0 | 1 | |
| Ciena Corporation | operating co | 1 | 1 | 0 | 5 | |
| THOMAS GROUP, INC. | operating co | 1 | 1 | 0 | 1 | |
| Ingersoll-Rand Company | operating co | 1 | 1 | 0 | 1 | |
| Konami Digital Entertainment Co., Ltd. | operating co | 1 | 1 | 0 | 1 | |
| SMART Modular Technologies, Inc.; SMART Embedded Computing, Inc.; SMART High Reliability Solutions LLC; CreeLED, Inc. | operating co | 1 | 1 | 0 | 1 | |
| The Union Water-Meter Company | operating co | 1 | 1 | 0 | 1 | |
| XENOPORT, INC. | operating co | 1 | 1 | 0 | 1 | |
| same released parties | — | 1 | 1 | 0 | 1 | |
| SECO TOOLS AB | operating co | 1 | 1 | 0 | 1 | |
| Mitsubishi Rayon Company, Ltd. | operating co | 1 | 1 | 0 | 1 | |
| The Burdick Corporation | operating co | 1 | 1 | 0 | 1 | |
| Bioniche Life Sciences Inc. | operating co | 1 | 1 | 0 | 2 | |
| Luther L. Yates | individual | 1 | 1 | 0 | 1 | |
| John H. Best & Sons, Inc. | operating co | 1 | 1 | 0 | 1 |