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 |
|---|---|---|---|---|---|---|
| GAF Corporation | operating co | 1 | 1 | 0 | 1 | |
| J. A. Fay & Egan Company | operating co | 1 | 1 | 0 | 1 | |
| TMC Enterprises, a Division of Tasco Industries, Inc. | operating co | 1 | 1 | 0 | 1 | |
| Kern Engineering and Manufacturing Corporation | operating co | 1 | 1 | 0 | 1 | |
| National Semiconductor Corporation | operating co | 1 | 1 | 0 | 1 | |
| Westinghouse Electric Corporation | operating co | 1 | 1 | 0 | 1 | |
| DMZ Global LLC | — | 1 | 1 | 0 | 1 | |
| Fairchild Industries, Inc. | operating co | 1 | 1 | 0 | 1 | |
| YAZAKI CORPORATION; NISSAN MOTOR CO., LTD. | operating co | 1 | 1 | 0 | 1 | |
| VERIZON LABORATORIES, INC. | operating co | 1 | 1 | 0 | 1 | |
| TOPPAN MOORE CO., LTD. | operating co | 1 | 1 | 0 | 1 | |
| NYMI INC. | operating co | 1 | 1 | 0 | 1 | |
| CORETRONIC CORPORATION | operating co | 1 | 1 | 0 | 1 | |
| Delaware Capital Formation, Inc. | operating co | 1 | 1 | 0 | 1 | |
| L.H. Carbide Corporation | operating co | 1 | 1 | 0 | 1 | |
| John Grant | individual | 1 | 1 | 0 | 1 | |
| Innolux Corporation | operating co | 1 | 1 | 0 | 1 | |
| Rytec Corporation | operating co | 1 | 1 | 0 | 3 | |
| Wagner Group GmbH | operating co | 1 | 1 | 0 | 1 | |
| The University of North Carolina at Chapel Hill | university | 1 | 1 | 0 | 1 |