Maintenance fees coming due
35 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 30, 2026. Unpaid by Jun 1, 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 11,664,427 | Vertical Semiconductor Device with Enhanced Contact Structure and Associated Methods In force Fee due Nov 30, 2026 Lapses if unpaid Jun 1, 2027 · High confidence | Atomera Incorporated | In force | Nov 30, 2026 | Jun 1, 2027 | High confidence | |
| US 11,664,459 | Method for Making an Inverted T Channel Field Effect Transistor (ITFET) Including a Superlattice In force Fee due Nov 30, 2026 Lapses if unpaid Jun 1, 2027 · High confidence | Atomera Incorporated | In force | Nov 30, 2026 | Jun 1, 2027 | High confidence | |
| US 11,682,712 | Method for Making Semiconductor Device Including Superlattice with O18 Enriched Monolayers In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 · High confidence | Atomera Incorporated | In force | Dec 20, 2026 | Jun 21, 2027 | High confidence | |
| US 10,355,151 | CMOS Image Sensor Including Photodiodes with Overlying Superlattices to Reduce Crosstalk In force Fee due Jan 16, 2027 Lapses if unpaid Jul 16, 2027 · High confidence | Atomera Incorporated | In force | Jan 16, 2027 | Jul 16, 2027 | High confidence | |
| US 10,361,243 | Method for Making CMOS Image Sensor Including Superlattice to Enhance Infrared Light Absorption In force Fee due Jan 23, 2027 Lapses if unpaid Jul 23, 2027 · High confidence | Atomera Incorporated | In force | Jan 23, 2027 | Jul 23, 2027 | High confidence | |
| US 10,367,028 | CMOS Image Sensor Including Stacked Semiconductor Chips and Image Processing Circuitry Including a Superlattice In force Fee due Jan 30, 2027 Lapses if unpaid Jul 30, 2027 · High confidence | Atomera Incorporated | In force | Jan 30, 2027 | Jul 30, 2027 | High confidence | |
| US 10,367,064 | Semiconductor Device with Recessed Channel Array Transistor (RCAT) Including a Superlattice In force Fee due Jan 30, 2027 Lapses if unpaid Jul 30, 2027 · High confidence | Atomera Incorporated | In force | Jan 30, 2027 | Jul 30, 2027 | High confidence | |
| US 11,721,546 | Method for Making Semiconductor Device with Selective Etching of Superlattice to Accumulate Non-Semiconductor Atoms In force Fee due Feb 8, 2027 Lapses if unpaid Aug 9, 2027 · High confidence | Atomera Incorporated | In force | Feb 8, 2027 | Aug 9, 2027 | High confidence | |
| US 10,381,242 | Method for Making a Semiconductor Device Including a Superlattice as a Gettering Layer In force Fee due Feb 13, 2027 Lapses if unpaid Aug 13, 2027 · High confidence | Atomera Incorporated | In force | Feb 13, 2027 | Aug 13, 2027 | High confidence | |
| US 11,728,385 | Semiconductor Device Including Superlattice with O18 Enriched Monolayers In force Fee due Feb 15, 2027 Lapses if unpaid Aug 16, 2027 · High confidence | Atomera Incorporated | In force | Feb 15, 2027 | Aug 16, 2027 | High confidence | |
| 25 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro | |||||||
10 of 35 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.