Maintenance fees coming due
91 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 2, 2026. Unpaid by Jun 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 9,048,901 | Wireless Interface Within Transmitter In force Fee due Dec 2, 2026 Lapses if unpaid Jun 2, 2027 · High confidence | Rosemount Inc. | In force | Dec 2, 2026 | Jun 2, 2027 | High confidence | |
| US 11,667,880 | Single-Use PH Sensor for Bioreactor Applications In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 · High confidence | Rosemount Inc. | In force | Dec 6, 2026 | Jun 7, 2027 | High confidence | |
| US 11,668,687 | A Combustion Analyzer with Dual Carbon Monoxide and Methane Measurements In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 · Medium confidence | Rosemount Inc. | In force | Dec 6, 2026 | Jun 7, 2027 | Medium confidence | |
| US 9,052,240 | Industrial Process Temperature Transmitter with Sensor Stress Diagnostics In force Fee due Dec 9, 2026 Lapses if unpaid Jun 9, 2027 · High confidence | Rosemount Inc. | In force | Dec 9, 2026 | Jun 9, 2027 | High confidence | |
| US 10,317,295 | Heat Flux Sensor In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 · High confidence | Rosemount Inc. | In force | Dec 11, 2026 | Jun 11, 2027 | High confidence | |
| US 9,057,659 | Pressure Transmitter with Hydrogen Getter In force Fee due Dec 16, 2026 Lapses if unpaid Jun 16, 2027 · High confidence | Rosemount Inc. | In force | Dec 16, 2026 | Jun 16, 2027 | High confidence | |
| US 10,324,055 | Process Variable Transmitter with Terminal Block Moisture Sensor In force Fee due Dec 18, 2026 Lapses if unpaid Jun 21, 2027 · High confidence | Rosemount Inc. | In force | Dec 18, 2026 | Jun 21, 2027 | High confidence | |
| US 10,330,538 | Thermocouple Temperature Sensor with Cold Junction Compensation In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 · High confidence | Rosemount Inc. | In force | Dec 25, 2026 | Jun 25, 2027 | High confidence | |
| US 9,069,029 | Detection and Compensation of Multiplexer Leakage Current In force Fee due Dec 30, 2026 Lapses if unpaid Jun 30, 2027 · High confidence | Rosemount Inc. | In force | Dec 30, 2026 | Jun 30, 2027 | High confidence | |
| US 11,692,884 | Thermowell with Pressure Sensing Capabilities In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 · High confidence | Rosemount Inc. | In force | Jan 4, 2027 | Jul 6, 2027 | High confidence | |
| 81 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro | |||||||
10 of 91 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.