Maintenance fees coming due
20 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Jan 2, 2027. Unpaid by Jul 2, 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 10,340,695 | Battery Energy Storage Design with Black Starting Capability In force Fee due Jan 2, 2027 Lapses if unpaid Jul 2, 2027 · High confidence | GE Grid Solutions LLC | In force | Jan 2, 2027 | Jul 2, 2027 | High confidence | |
| US 9,081,407 | Voltage Regulation System and Method In force Fee due Jan 14, 2027 Lapses if unpaid Jul 14, 2027 · High confidence | GE Grid Solutions LLC | In force | Jan 14, 2027 | Jul 14, 2027 | High confidence | |
| US 9,083,233 | Dynamic Break and Distortion Filter In force Fee due Jan 14, 2027 Lapses if unpaid Jul 14, 2027 · High confidence | GE Grid Solutions LLC | In force | Jan 14, 2027 | Jul 14, 2027 | High confidence | |
| US 9,136,709 | Methods and Systems for Selectively Coupling a Power Conversion System to an Electrical Grid In force Fee due Mar 15, 2027 Lapses if unpaid Sep 15, 2027 · High confidence | GE Grid Solutions LLC | In force | Mar 15, 2027 | Sep 15, 2027 | High confidence | |
| US 11,796,598 | Method and Apparatus for Determining a State of Charge for a Battery In force Fee due Apr 24, 2027 Lapses if unpaid Oct 25, 2027 · High confidence | GE Grid Solutions LLC | In force | Apr 24, 2027 | Oct 25, 2027 | High confidence | |
| US 11,804,771 | Customizable Power Converter and Customizable Power Conversion System In force Fee due Apr 30, 2027 Lapses if unpaid Nov 1, 2027 · High confidence | GE Grid Solutions LLC | In force | Apr 30, 2027 | Nov 1, 2027 | High confidence | |
| US 9,178,410 | Adaptive Power Conversion System In force Fee due May 3, 2027 Lapses if unpaid Nov 3, 2027 · High confidence | GE Grid Solutions LLC | In force | May 3, 2027 | Nov 3, 2027 | High confidence | |
| US 11,848,425 | Temperature Control for Energy Storage System In force Fee due Jun 19, 2027 Lapses if unpaid Dec 20, 2027 · High confidence | GE Grid Solutions LLC | In force | Jun 19, 2027 | Dec 20, 2027 | High confidence | |
| US 10,519,933 | Method of Operating a Wind Turbine System Including an Energy Storage System In force Fee due Jun 30, 2027 Lapses if unpaid Jan 3, 2028 · High confidence | GE Grid Solutions LLC | In force | Jun 30, 2027 | Jan 3, 2028 | High confidence | |
| US 10,523,088 | Energy Storage System for Doubly Fed Induction Generator In force Fee due Jun 30, 2027 Lapses if unpaid Jan 3, 2028 · High confidence | GE Grid Solutions LLC | In force | Jun 30, 2027 | Jan 3, 2028 | High confidence | |
| 10 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro | |||||||
10 of 20 patents shown. Soonest fee due date first, then patent number.
Pro members see every patent with a maintenance fee coming due: number, title, status, the due date, and the date it lapses if the fee goes unpaid through the grace period.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.