Druck, LLC

18 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

Jan 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 Feb 22, 2027
The maintenance fee for Sensor Interface (US 11,734,202) comes due Feb 22, 2027. Unpaid by Aug 23, 2027, it lapses early.
1 fee due Apr 22, 2027
The maintenance fee for Subsea Equipment Acoustic Monitoring System (US 10,451,760) comes due Apr 22, 2027. Unpaid by Oct 22, 2027, it lapses early.
1 fee due Jun 10, 2027
The maintenance fee for Pitot-Static Air Data Test System with Pilot and Co-Pilot Verification (US 10,502,760) comes due Jun 10, 2027. Unpaid by Dec 10, 2027, it lapses early.
1 fee due Sep 29, 2027
The maintenance fee for Flowmeter with a Flow Conditioner Formed by a Protrusion Having Restriction Provided Upstream of the Measurement Section (US 9,297,679) comes due Sep 29, 2027. Unpaid by Mar 29, 2028, it lapses early.

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 7,490,519	System and Method for Sensing Differential Pressure In force Term ends Jan 21, 2027 · High confidence	In force	Term ends Jan 21, 2027	High confidence
US 7,783,448	Sensor Processing Method In force Term ends Oct 3, 2028 · High confidence	In force	Term ends Oct 3, 2028	High confidence
US 8,042,402	Modular Sensor Assembly In force Term ends Jul 26, 2030 · High confidence	In force	Term ends Jul 26, 2030	High confidence
US 8,422,340	Methods for Determining the Frequency or Period of a Signal In force Term ends May 7, 2031 · High confidence	In force	Term ends May 7, 2031	High confidence
US 9,588,309	Optical Fibre Feedthrough Assembly In force Term ends Nov 12, 2033 · High confidence	In force	Term ends Nov 12, 2033	High confidence
US 9,297,679	Flowmeter with a Flow Conditioner Formed by a Protrusion Having Restriction Provided Upstream of the Measurement Section In force Term ends May 23, 2034 · High confidence	In force	Term ends May 23, 2034	High confidence
US 10,451,760	Subsea Equipment Acoustic Monitoring System In force Term ends Jun 23, 2034 · Medium confidence	In force	Term ends Jun 23, 2034	Medium confidence
US 9,998,089	Resonator Device In force Term ends Aug 12, 2034 · High confidence	In force	Term ends Aug 12, 2034	High confidence
US 10,301,042	Pitot-Static Air Data Test System with Automatic Dependent Surveillance- Broadcast (ADS-B) Verification In force Term ends Jul 1, 2037 · High confidence	In force	Term ends Jul 1, 2037	High confidence
US 10,502,760	Pitot-Static Air Data Test System with Pilot and Co-Pilot Verification In force Term ends Jan 19, 2038 · High confidence	In force	Term ends Jan 19, 2038	High confidence

10 of 18 patents shown.

Pro members see all 18.

Pro members: see all 18 patents

Also on record, not counted in the 18: 5 ended at full term. List them

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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