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.
3 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 |
|---|---|---|---|---|---|---|
| Miksztal, Andrew; Malefyt, Thomas; Lee, Kathleen M. | individual | 0 | 0 | 0 | 1 | |
| Voisin, Gérard | individual | 0 | 0 | 0 | 1 | |
| LEPTON COMPUTING LLC | NPE | 8 | 8 | 1 | 1 | |
| GENZYME CORPORATION | operating co | 6 | 6 | 1 | 3 | |
| SURECELL TRANSACTIONS, LLC | NPE | 6 | 6 | 1 | 3 | |
| ADVANCED MEMORY TECHNOLOGIES LLC | NPE | 5 | 5 | 1 | 1 | |
| SNAPAID LTD. | NPE | 5 | 5 | 1 | 2 | |
| MULTIFOLD INTERNATIONAL INCORPORATED PTE. LTD. | NPE | 5 | 5 | 1 | 1 | |
| TrinamiX GmbH | operating co | 5 | 5 | 1 | 4 | |
| JIMI IP, LLC | NPE | 5 | 5 | 1 | 1 | |
| EMPIRE TECHNOLOGY DEVELOPMENT LLC | NPE | 4 | 6 | 1 | 8 | |
| DAMAKA, INC. | operating co | 4 | 5 | 1 | 3 | |
| Ironburg Inventions Limited | operating co | 4 | 4 | 1 | 9 | |
| Disintermediation Services, Inc. | NPE | 4 | 4 | 1 | 3 | |
| CORNING INCORPORATED | operating co | 4 | 4 | 1 | 4 | |
| HANNIBAL IP LLC | NPE | 4 | 4 | 1 | 1 | |
| NETWORK-1 TECHNOLOGIES, INC. | NPE | 4 | 4 | 1 | 2 | |
| CHARGE FUSION TECHNOLOGIES, LLC | NPE | 4 | 4 | 1 | 3 | |
| RADIANT PATENTS LLC | NPE | 3 | 6 | 1 | 1 | |
| FORTINET, INC. | operating co | 3 | 6 | 1 | 7 | |
| WACOM CO., LTD. | operating co | 3 | 4 | 1 | 2 | |
| OPENTV, INC. | operating co | 3 | 4 | 1 | 4 | |
| SOLOS TECHNOLOGY LIMITED | NPE | 3 | 4 | 1 | 3 | |
| SILA NANOTECHNOLOGIES, INC. | operating co | 3 | 4 | 1 | 4 | |
| Weple IP Holdings, LLC | NPE | 3 | 3 | 1 | 2 |