Maintenance fees coming due

Sigmasense, LLC.

116 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Nov 21, 2026. Unpaid by May 21, 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 10,296,108	Pen System with Internal Pressure Tilt Rotation Sigmasense, LLC. In force Fee due Nov 21, 2026 Lapses if unpaid May 21, 2027 Term ends Aug 31, 2036 · High confidence	Sigmasense, LLC.	In force	Nov 21, 2026	May 21, 2027	Term ends Aug 31, 2036	High confidence
US 11,662,847	Touch Screen Sensor Controller with Drive Sense Circuits Sigmasense, LLC. In force Fee due Nov 30, 2026 Lapses if unpaid Jun 1, 2027 Term ends Sep 14, 2038 · High confidence	Sigmasense, LLC.	In force	Nov 30, 2026	Jun 1, 2027	Term ends Sep 14, 2038	High confidence
US 11,669,062	Generator output signal monitoring and conditioning Sigmasense, LLC. In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 Term ends Mar 18, 2039 · Low confidence	Sigmasense, LLC.	In force	Dec 6, 2026	Jun 7, 2027	Term ends Mar 18, 2039	Low confidence
US 11,669,177	Frequency diverse e-pen for touch sensor and e-pen systems Sigmasense, LLC. In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 Term ends Nov 19, 2038 · High confidence	Sigmasense, LLC.	In force	Dec 6, 2026	Jun 7, 2027	Term ends Nov 19, 2038	High confidence
US 11,675,323	Motor input signal monitoring and conditioning Sigmasense, LLC. In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 Term ends Mar 18, 2039 · Low confidence	Sigmasense, LLC.	In force	Dec 13, 2026	Jun 14, 2027	Term ends Mar 18, 2039	Low confidence
US 11,679,678	Vehicle System for Detecting and Visually Conveying Vehicle Button Interaction Sigmasense, LLC. In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Sep 23, 2041 · High confidence	Sigmasense, LLC.	In force	Dec 20, 2026	Jun 21, 2027	Term ends Sep 23, 2041	High confidence
US 11,681,275	Analog World Interfacing for Automated Systems Sigmasense, LLC. In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Aug 27, 2038 · High confidence	Sigmasense, LLC.	In force	Dec 20, 2026	Jun 21, 2027	Term ends Aug 27, 2038	High confidence
US 11,681,276	Source and sensor operative acoustic wave device Sigmasense, LLC. In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Aug 27, 2038 · High confidence	Sigmasense, LLC.	In force	Dec 20, 2026	Jun 21, 2027	Term ends Aug 27, 2038	High confidence
US 11,681,323	Data Formatting of a Low Voltage Drive Circuit Data Communication System Sigmasense, LLC. In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Feb 4, 2039 · High confidence	Sigmasense, LLC.	In force	Dec 20, 2026	Jun 21, 2027	Term ends Feb 4, 2039	High confidence
US 11,681,390	Electronic Writing Apparatus with Multiple Conductors Sigmasense, LLC. In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Jun 10, 2039 · High confidence	Sigmasense, LLC.	In force	Dec 20, 2026	Jun 21, 2027	Term ends Jun 10, 2039	High confidence
106 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro

10 of 116 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.

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Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.