Maintenance fees coming due

APS Tech LLC

9 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 16, 2026. Unpaid by Jun 16, 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 9,057,245	Methods for Optimizing and Monitoring Underground Drilling APS Tech LLC In force Fee due Dec 16, 2026 Lapses if unpaid Jun 16, 2027 Term ends Oct 27, 2031 · High confidence	APS Tech LLC	In force	Dec 16, 2026	Jun 16, 2027	Term ends Oct 27, 2031	High confidence
US 10,323,511	Dual Rotor Pulser for Transmitting Information in a Drilling System APS Tech LLC In force Fee due Dec 18, 2026 Lapses if unpaid Jun 21, 2027 Term ends Apr 7, 2037 · High confidence	APS Tech LLC	In force	Dec 18, 2026	Jun 21, 2027	Term ends Apr 7, 2037	High confidence
US 10,337,250	System, Apparatus and Method for Guiding a Drill Bit Based on Forces Applied to a Drill Bit, and Drilling Methods Related to Same APS Tech LLC In force Fee due Jan 2, 2027 Lapses if unpaid Jul 2, 2027 Term ends Nov 9, 2037 · High confidence	APS Tech LLC	In force	Jan 2, 2027	Jul 2, 2027	Term ends Nov 9, 2037	High confidence
US 10,416,024	System and Method for Monitoring and Controlling Underground Drilling APS Tech LLC In force Fee due Mar 17, 2027 Lapses if unpaid Sep 17, 2027 Term ends Feb 1, 2030 · Medium confidence	APS Tech LLC	In force	Mar 17, 2027	Sep 17, 2027	Term ends Feb 1, 2030	Medium confidence
US 10,422,675	System and Method for Monitoring Mud Flow In A Component of Drilling System APS Tech LLC In force Fee due Mar 24, 2027 Lapses if unpaid Sep 24, 2027 Term ends Nov 11, 2037 · High confidence	APS Tech LLC	In force	Mar 24, 2027	Sep 24, 2027	Term ends Nov 11, 2037	High confidence
US 10,465,506	Mud-Pulse Telemetry System Including a Pulser for Transmitting Information Along a Drill String APS Tech LLC In force Fee due May 5, 2027 Lapses if unpaid Nov 5, 2027 Term ends Nov 7, 2036 · High confidence	APS Tech LLC	In force	May 5, 2027	Nov 5, 2027	Term ends Nov 7, 2036	High confidence
US 10,472,944	Drilling System and Associated System and Method for Monitoring, Controlling, and Predicting Vibration in an Underground Drilling Operation APS Tech LLC In force Fee due May 12, 2027 Lapses if unpaid Nov 12, 2027 Term ends Aug 14, 2035 · High confidence	APS Tech LLC	In force	May 12, 2027	Nov 12, 2027	Term ends Aug 14, 2035	High confidence
US 9,238,965	Rotary Pulser and Method for Transmitting Information to the Surface from a Drill String Down Hole in a Well APS Tech LLC In force Fee due Jul 19, 2027 Lapses if unpaid Jan 19, 2028 Term ends Jul 28, 2034 · High confidence	APS Tech LLC	In force	Jul 19, 2027	Jan 19, 2028	Term ends Jul 28, 2034	High confidence
US 9,279,903	Apparatus for Measuring Bending on a Drill Bit Operating in a Well APS Tech LLC In force Fee due Sep 8, 2027 Lapses if unpaid Mar 8, 2028 Term ends Apr 25, 2030 · High confidence	APS Tech LLC	In force	Sep 8, 2027	Mar 8, 2028	Term ends Apr 25, 2030	High confidence

9 of 9 patents shown. Soonest fee due date first, then patent number.

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