Maintenance fees coming due

Danfoss Power Electronics A/S

10 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Jan 23, 2027. Unpaid by Jul 23, 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 10,359,472	Automatic Identification of the Type of Motor Danfoss Power Electronics A/S In force Fee due Jan 23, 2027 Lapses if unpaid Jul 23, 2027 Term ends Jan 11, 2035 · High confidence	Danfoss Power Electronics A/S	In force	Jan 23, 2027	Jul 23, 2027	Term ends Jan 11, 2035	High confidence
US 10,386,808	System Parameter Identification Method Based on Rate-Limited Relay with Hysteresis and Sinusoidal Injection Danfoss Power Electronics A/S In force Fee due Feb 20, 2027 Lapses if unpaid Aug 20, 2027 Term ends Feb 15, 2038 · High confidence	Danfoss Power Electronics A/S	In force	Feb 20, 2027	Aug 20, 2027	Term ends Feb 15, 2038	High confidence
US 11,749,982	Motor Controller Providing a Dual-Channel Functional-Safety Safe-Torque-Off Function Danfoss Power Electronics A/S In force Fee due Mar 5, 2027 Lapses if unpaid Sep 7, 2027 Term ends Sep 2, 2041 · High confidence	Danfoss Power Electronics A/S	In force	Mar 5, 2027	Sep 7, 2027	Term ends Sep 2, 2041	High confidence
US 10,439,526	Load-Adaptive Smooth Startup Method for Sensorless Field-Oriented Control of Permanent Magnet Synchronous Motors Danfoss Power Electronics A/S In force Fee due Apr 8, 2027 Lapses if unpaid Oct 8, 2027 Term ends Mar 20, 2035 · High confidence	Danfoss Power Electronics A/S	In force	Apr 8, 2027	Oct 8, 2027	Term ends Mar 20, 2035	High confidence
US 10,447,107	Motor Drive Cover for Protection Against Contaminants Danfoss Power Electronics A/S In force Fee due Apr 15, 2027 Lapses if unpaid Oct 15, 2027 Term ends Jan 7, 2036 · High confidence	Danfoss Power Electronics A/S	In force	Apr 15, 2027	Oct 15, 2027	Term ends Jan 7, 2036	High confidence
US 10,461,679	Motor Control System and Method Danfoss Power Electronics A/S In force Fee due Apr 29, 2027 Lapses if unpaid Oct 29, 2027 Term ends Jan 4, 2037 · High confidence	Danfoss Power Electronics A/S	In force	Apr 29, 2027	Oct 29, 2027	Term ends Jan 4, 2037	High confidence
US 10,481,568	One-Click Motor Configuration Danfoss Power Electronics A/S In force Fee due May 19, 2027 Lapses if unpaid Nov 19, 2027 Term ends Feb 8, 2038 · High confidence	Danfoss Power Electronics A/S	In force	May 19, 2027	Nov 19, 2027	Term ends Feb 8, 2038	High confidence
US 11,837,964	Method for Detecting Low Impedance Condition at Output of Electrical Converter, Control Unit, Computer Program Product and Electrical Converter Danfoss Power Electronics A/S In force Fee due Jun 5, 2027 Lapses if unpaid Dec 6, 2027 Term ends Dec 8, 2039 · High confidence	Danfoss Power Electronics A/S	In force	Jun 5, 2027	Dec 6, 2027	Term ends Dec 8, 2039	High confidence
US 11,863,113	Method for Reducing Regenerated Energy and Reversal Stress in a Reciprocating Load Powered by an Electric Motor by Modulating Motor Speed Using a Variable Frequency Drive and Variable Frequency Drive Provided for Performing the Method Danfoss Power Electronics A/S In force Fee due Jul 2, 2027 Lapses if unpaid Jan 3, 2028 Term ends Jul 9, 2042 · High confidence	Danfoss Power Electronics A/S	In force	Jul 2, 2027	Jan 3, 2028	Term ends Jul 9, 2042	High confidence
US 9,268,316	Method for Automatically Estimating a Friction Coefficient in a Mechanical System Danfoss Power Electronics A/S In force Fee due Aug 23, 2027 Lapses if unpaid Feb 23, 2028 Term ends Jun 6, 2032 · High confidence	Danfoss Power Electronics A/S	In force	Aug 23, 2027	Feb 23, 2028	Term ends Jun 6, 2032	High confidence

10 of 10 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.