Maintenance fees coming due

Merlin Technology, Inc.

27 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Dec 25, 2026. Unpaid by Jun 25, 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 10,329,895	Advanced Drill String Inground Isolator Housing in an MWD System and Associated Method Merlin Technology, Inc. In force (reinstated) Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 Term ends Sep 23, 2033 · High confidence	Merlin Technology, Inc.	In force (reinstated)	Dec 25, 2026	Jun 25, 2027	Term ends Sep 23, 2033	High confidence
US 10,351,231	Rotorcraft Autopilot and Methods Merlin Technology, Inc. In force Fee due Jan 16, 2027 Lapses if unpaid Jul 16, 2027 Term ends Feb 8, 2033 · High confidence	Merlin Technology, Inc.	In force	Jan 16, 2027	Jul 16, 2027	Term ends Feb 8, 2033	High confidence
US 11,709,179	Mechanical Shock Resistant MEMS Accelerometer Arrangement, Associated Method, Apparatus and System Merlin Technology, Inc. In force Fee due Jan 25, 2027 Lapses if unpaid Jul 26, 2027 Term ends Jul 1, 2035 · Medium confidence	Merlin Technology, Inc.	In force	Jan 25, 2027	Jul 26, 2027	Term ends Jul 1, 2035	Medium confidence
US 10,378,338	Advanced Passive Interference Management in Directional Drilling System, Apparatus and Methods Merlin Technology, Inc. In force Fee due Feb 13, 2027 Lapses if unpaid Aug 13, 2027 Term ends Jun 28, 2037 · High confidence	Merlin Technology, Inc.	In force	Feb 13, 2027	Aug 13, 2027	Term ends Jun 28, 2037	High confidence
US 10,428,583	Multimode Steering and Homing System, Method and Apparatus Merlin Technology, Inc. In force Fee due Apr 1, 2027 Lapses if unpaid Oct 1, 2027 Term ends Sep 24, 2035 · High confidence	Merlin Technology, Inc.	In force	Apr 1, 2027	Oct 1, 2027	Term ends Sep 24, 2035	High confidence
US 9,150,308	Rotorcraft Autopilot System, Components and Methods Merlin Technology Inc. In force Fee due Apr 6, 2027 Lapses if unpaid Oct 6, 2027 Term ends May 2, 2034 · High confidence	Merlin Technology Inc.	In force	Apr 6, 2027	Oct 6, 2027	Term ends May 2, 2034	High confidence
US 10,443,316	Drill String Adapter and Method for Inground Signal Coupling Merlin Technology Inc. In force Fee due Apr 15, 2027 Lapses if unpaid Oct 15, 2027 Term ends Jun 28, 2031 · High confidence	Merlin Technology Inc.	In force	Apr 15, 2027	Oct 15, 2027	Term ends Jun 28, 2031	High confidence
US 11,802,900	Portable Device With Removably Attachable Measuring Leg Merlin Technology Inc. In force Fee due Apr 30, 2027 Lapses if unpaid Nov 1, 2027 Term ends Jul 6, 2029 · High confidence	Merlin Technology Inc.	In force	Apr 30, 2027	Nov 1, 2027	Term ends Jul 6, 2029	High confidence
US 10,464,662	Rotorcraft Autopilot System, Components and Methods Merlin Technology, Inc. In force Fee due May 5, 2027 Lapses if unpaid Nov 5, 2027 Term ends Feb 8, 2033 · High confidence	Merlin Technology, Inc.	In force	May 5, 2027	Nov 5, 2027	Term ends Feb 8, 2033	High confidence
US 11,814,950	Drill Planning Tool for Topography Characterization, System and Associated Methods Merlin Technology, Inc. In force Fee due May 14, 2027 Lapses if unpaid Nov 15, 2027 Term ends Jul 23, 2039 · High confidence	Merlin Technology, Inc.	In force	May 14, 2027	Nov 15, 2027	Term ends Jul 23, 2039	High confidence
17 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro

10 of 27 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.