Maintenance fees coming due

Danfoss A/S

117 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 9, 2026. Unpaid by Jun 9, 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 9,051,926	Hydraulic Axial Piston Machine Danfoss A/S In force Fee due Dec 9, 2026 Lapses if unpaid Jun 9, 2027 Term ends Jun 7, 2030 · High confidence	Danfoss A/S	In force	Dec 9, 2026	Jun 9, 2027	Term ends Jun 7, 2030	High confidence
US 10,316,929	Control Strategy for Reducing Boom Oscillation Danfoss A/S In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 Term ends Jul 31, 2035 · High confidence	Danfoss A/S	In force	Dec 11, 2026	Jun 11, 2027	Term ends Jul 31, 2035	High confidence
US 11,674,865	System and Method Utilizing a Light Transfer Protocol for Sensor Monitoring Hose Assembly Degradation Danfoss A/S In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 Ends no later than Dec 21, 2041 · Medium confidence	Danfoss A/S	In force	Dec 13, 2026	Jun 14, 2027	Ends no later than Dec 21, 2041	Medium confidence
US 11,677,347	Positioning Device for Producing a Rotational Position Signal and an Excitation Device for Producing an Excitation Signal for a Resolver Danfoss A/S In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 Term ends Dec 2, 2040 · High confidence	Danfoss A/S	In force	Dec 13, 2026	Jun 14, 2027	Term ends Dec 2, 2040	High confidence
US 9,057,412	Drum and Constricting Drum Assembly Danfoss A/S In force Fee due Dec 16, 2026 Lapses if unpaid Jun 16, 2027 Term ends Mar 29, 2033 · High confidence	Danfoss A/S	In force	Dec 16, 2026	Jun 16, 2027	Term ends Mar 29, 2033	High confidence
US 10,323,663	Methods and Apparatus to Enable Boom Bounce Reduction and Prevent Un-Commanded Motion in Hydraulic Systems Danfoss A/S In force Fee due Dec 18, 2026 Lapses if unpaid Jun 21, 2027 Term ends Aug 10, 2035 · High confidence	Danfoss A/S	In force	Dec 18, 2026	Jun 21, 2027	Term ends Aug 10, 2035	High confidence
US 11,680,658	A Linear Actuator with a Coupling Danfoss A/S In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends May 1, 2037 · High confidence	Danfoss A/S	In force	Dec 20, 2026	Jun 21, 2027	Term ends May 1, 2037	High confidence
US 11,682,944	Axial Magnetic Bearing for Centrifugal Refrigerant Compressor Danfoss A/S In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Feb 20, 2040 · High confidence	Danfoss A/S	In force	Dec 20, 2026	Jun 21, 2027	Term ends Feb 20, 2040	High confidence
US 9,062,731	Water Cooled Brake Danfoss A/S In force Fee due Dec 23, 2026 Lapses if unpaid Jun 23, 2027 Term ends May 30, 2029 · High confidence	Danfoss A/S	In force	Dec 23, 2026	Jun 23, 2027	Term ends May 30, 2029	High confidence
US 10,330,105	Compressor Including Flow Control Insert and Electromagnetic Actuator Danfoss A/S In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 Term ends Mar 21, 2035 · High confidence	Danfoss A/S	In force	Dec 25, 2026	Jun 25, 2027	Term ends Mar 21, 2035	High confidence
107 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

10 of 117 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.