T&W Engineering A/S

26 patents currently held · Updated Nov 14, 2026

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Ending by 2030

Feb 2027

Next term end

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033203420352036203720382039204020412042204320442045

Fee deadlines

Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.

1 fee due Jan 4, 2027
The maintenance fee for Eeg Monitor with Capacitive Electrodes and Method of Monitoring Brain Waves (US 11,690,555) comes due Jan 4, 2027. Unpaid by Jul 6, 2027, it lapses early.
1 fee due Mar 17, 2027
The maintenance fee for Eeg Monitoring System and Method of Monitoring an Eeg (US 10,413,208) comes due Mar 17, 2027. Unpaid by Sep 17, 2027, it lapses early.
1 fee due Apr 15, 2027
The maintenance fee for Electrode and Leakage Current Testing in an Eeg Monitor with an Implantable Part (US 10,441,223) comes due Apr 15, 2027. Unpaid by Oct 15, 2027, it lapses early.
2 fees due Jul 2 to 19, 2027 · next Jul 2

Which patents, and when each one lapses · Pro

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

Patents held now

Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.

Patent	Title	Status	Expires	Confidence
US 8,118,741	Method and apparatus for prediction and warning of hypoglycaemic attack In force Term ends Feb 25, 2027 · From the USPTO record	In force	Term ends Feb 25, 2027	From the USPTO record
US 9,782,103	Portable Monitoring Device with Hearing Aid and Eeg Monitor In force Term ends Oct 1, 2029 · High confidence	In force	Term ends Oct 1, 2029	High confidence
US 8,884,767	Method and Apparatus for Alerting a Person Carrying an Eeg Assembly In force Term ends Jan 20, 2030 · High confidence	In force	Term ends Jan 20, 2030	High confidence
US 9,025,800	Hearing Aid Adapted for Detecting Brain Waves and a Method for Adapting Such a Hearing Aid In force Term ends Jan 28, 2030 · High confidence	In force	Term ends Jan 28, 2030	High confidence
US 10,959,639	Eeg Monitoring Apparatus and Method for Presenting Messages Therein In force Term ends May 25, 2030 · High confidence	In force	Term ends May 25, 2030	High confidence
US 8,866,661	Input Converter for an Eeg Monitoring System, Signal Conversion Method and Monitoring System In force Term ends Jun 27, 2030 · High confidence	In force	Term ends Jun 27, 2030	High confidence
US 8,929,813	Monitoring Device and Method for Wireless Power Transmission in a Monitoring Device In force Term ends Jan 30, 2031 · High confidence	In force	Term ends Jan 30, 2031	High confidence
US 12,520,091	Hearing Aid with Self Fitting Capabilities In force Term ends Aug 3, 2031 · High confidence	In force	Term ends Aug 3, 2031	High confidence
US 9,408,552	Ear Plug with Surface Electrodes In force Term ends Sep 16, 2031 · High confidence	In force	Term ends Sep 16, 2031	High confidence
US 9,240,825	Monitoring Device and a Method for Wireless Data and Power Transmission in a Monitoring Device In force Term ends Sep 27, 2031 · High confidence	In force	Term ends Sep 27, 2031	High confidence

10 of 26 patents shown.

Pro members see all 26.

Pro members: see all 26 patents

Sources and methods

Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand. How this record was built

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

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Published applications

US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.

2 pending · 1 no status recorded

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