Maintenance fees coming due
81 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 23, 2026. Unpaid by May 24, 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 11,658,517 | Area-Apportioned Wireless Power Antenna for Maximized Charging Volume In force Fee due Nov 23, 2026 Lapses if unpaid May 24, 2027 · High confidence | Nucurrent, Inc. | In force | Nov 23, 2026 | May 24, 2027 | High confidence | |
| US 11,670,856 | Multi-Mode Wireless Antenna Configurations In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 · High confidence | Nucurrent, Inc. | In force | Dec 6, 2026 | Jun 7, 2027 | High confidence | |
| US 11,682,926 | Automatic Gain Control for Communications Demodulation in Wireless Power Transmitters In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 · High confidence | Nucurrent, Inc. | In force | Dec 20, 2026 | Jun 21, 2027 | High confidence | |
| US 11,682,928 | Automatic Gain Control For Communications Demodulation In Wireless Power Transmitters In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 · High confidence | Nucurrent, Inc. | In force | Dec 20, 2026 | Jun 21, 2027 | High confidence | |
| US 11,682,930 | Repeater Compatibility Verifier For Wireless Power Transmission System In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 · High confidence | Nucurrent, Inc. | In force | Dec 20, 2026 | Jun 21, 2027 | High confidence | |
| US 11,689,063 | Slotted Communications In Virtual AC Power Signal Transfer With Variable Slot Width In force Fee due Dec 27, 2026 Lapses if unpaid Jun 28, 2027 · High confidence | Nucurrent, Inc. | In force | Dec 27, 2026 | Jun 28, 2027 | High confidence | |
| US 11,695,302 | Segmented Shielding for Wide Area Wireless Power Transmitter In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 · High confidence | Nucurrent, Inc. | In force | Jan 4, 2027 | Jul 6, 2027 | High confidence | |
| US 11,695,449 | Wireless Power Transmission Systems And Methods With Signal Damping Operating Modes In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 · High confidence | Nucurrent, Inc. | In force | Jan 4, 2027 | Jul 6, 2027 | High confidence | |
| US 11,705,760 | Method of Operating a Wireless Electrical Energy Transmission System In force Fee due Jan 18, 2027 Lapses if unpaid Jul 19, 2027 · High confidence | Nucurrent, Inc. | In force | Jan 18, 2027 | Jul 19, 2027 | High confidence | |
| US 11,711,112 | Wireless Power Transmission Systems And Methods With Selective Signal Damping Active Mode In force Fee due Jan 25, 2027 Lapses if unpaid Jul 26, 2027 · High confidence | Nucurrent, Inc. | In force | Jan 25, 2027 | Jul 26, 2027 | High confidence | |
| 71 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro | |||||||
10 of 81 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.