Hydrogreen, Inc.
Records under this name other than the patents Hydrogreen, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 4 patents it holds.
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| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,985,753 | Portable navigation and communication systems Term ended Term ended Dec 11, 2023 · From the USPTO record | Term ended | Term ended Dec 11, 2023 | From the USPTO record |