Maintenance fees coming due
9 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 9, 2026. Unpaid by Jun 9, 2027, that one lapses early.
A maintenance fee does not end a patent on its due date. It falls due at 3.5, 7.5
and 11.5 years from grant, and the patent lapses only if the fee is still unpaid at the end of the
six month grace period that follows.
| Patent | Title | Holder | Status | Fee due | Lapses if unpaid | Expires | Confidence |
|---|---|---|---|---|---|---|---|
| US 9,054,385 | Passive Power Management and Battery Charging for a Hybrid Fuel Cell / Battery System In force Fee due Dec 9, 2026 Lapses if unpaid Jun 9, 2027 · High confidence | Plug Power Autonomous Technologies, Inc. | In force | Dec 9, 2026 | Jun 9, 2027 | High confidence | |
| US 11,679,339 | High-Output Atmospheric Water Generator In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 · High confidence | Plug Power Inc. | In force | Dec 20, 2026 | Jun 21, 2027 | High confidence | |
| US 11,713,848 | Support Structure for Cryogenic Transport Trailer In force Fee due Feb 1, 2027 Lapses if unpaid Aug 2, 2027 · High confidence | Plug Power Inc. | In force | Feb 1, 2027 | Aug 2, 2027 | High confidence | |
| US 10,381,658 | Fuel Cell Stack In force Fee due Feb 13, 2027 Lapses if unpaid Aug 13, 2027 · High confidence | Plug Power Inc. | In force | Feb 13, 2027 | Aug 13, 2027 | High confidence | |
| US 10,418,648 | Method for Producing Bipolar Plates In force Fee due Mar 17, 2027 Lapses if unpaid Sep 17, 2027 · High confidence | Plug Power Autonomous Technologies, Inc. | In force | Mar 17, 2027 | Sep 17, 2027 | High confidence | |
| US 10,547,061 | Fuel Cell Stack In force Fee due Jul 28, 2027 Lapses if unpaid Jan 28, 2028 · High confidence | Plug Power Inc. | In force | Jul 28, 2027 | Jan 28, 2028 | High confidence | |
| US 11,883,779 | Method and System for Electrochemically Compressing Gaseous Hydrogen In force Fee due Jul 30, 2027 Lapses if unpaid Jan 31, 2028 · High confidence | Plug Power Inc. | In force | Jul 30, 2027 | Jan 31, 2028 | High confidence | |
| US 10,615,445 | Fuel Cell Stack In force Fee due Oct 7, 2027 Lapses if unpaid Apr 7, 2028 · High confidence | Plug Power Inc. | In force | Oct 7, 2027 | Apr 7, 2028 | High confidence | |
| US 11,955,675 | Integrated Circuit for Diagnostics In force Fee due Oct 9, 2027 Lapses if unpaid Apr 10, 2028 · High confidence | Plug Power Inc. | In force | Oct 9, 2027 | Apr 10, 2028 | High confidence |
9 of 9 patents shown. Soonest fee due date first, then patent number.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.