Dwyer Instruments, Inc.

27 patents currently held · Updated Nov 14, 2026

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

Recorded under 5 name spellings.

Ending by 2030

Jan 2028

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.

2 fees due Jan 18 to 23, 2027 · next Jan 18
1 fee due May 26, 2027
The maintenance fee for Rotameter with Integrated Valve (US 10,488,232) comes due May 26, 2027. Unpaid by Nov 26, 2027, it lapses early.
1 fee due Aug 4, 2027
The maintenance fee for Pitot Tube Instrument (US 10,551,403) comes due Aug 4, 2027. Unpaid by Feb 4, 2028, it lapses early.
1 fee due Nov 5, 2027
The maintenance fee for Venturi Vacuum Drawback Assemblies and Dual Orifice Venturi Valve Assemblies (US 10,641,406) comes due Nov 5, 2027. Unpaid by May 5, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

1 of the patents on this record was granted since Aug 16, 2026

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 7,600,427	Gage Enclosure with Cover Removal Mechanism In force Term ends Jan 10, 2028 · High confidence	In force	Term ends Jan 10, 2028	High confidence
US 8,307,712	Pressure Gage with Magnetically Coupled Diaphragm In force Term ends May 24, 2031 · High confidence	In force	Term ends May 24, 2031	High confidence
US 8,563,884	Manual Reset Pressure Switch In force Term ends Apr 24, 2032 · High confidence	In force	Term ends Apr 24, 2032	High confidence
US D854,678	HVAC Airflow Hood In force Term ends Jul 23, 2034 · High confidence	In force	Term ends Jul 23, 2034	High confidence
US 9,524,630	Radon Mitigation System Monitoring Having a Fluid Flow Switch with an Adjustable Wing In force Term ends Nov 12, 2034 · High confidence	In force	Term ends Nov 12, 2034	High confidence
US 10,359,382	System Method and Apparatus for Humidity Sensor Temperature Compensation In force Term ends Oct 19, 2035 · High confidence	In force	Term ends Oct 19, 2035	High confidence
US D899,954	Sensor In force Term ends Oct 27, 2035 · High confidence	In force	Term ends Oct 27, 2035	High confidence
US 10,488,232	Rotameter with Integrated Valve In force Term ends Apr 23, 2036 · High confidence	In force	Term ends Apr 23, 2036	High confidence
US D926,942	Flow Control Plate In force Term ends Aug 3, 2036 · High confidence	In force	Term ends Aug 3, 2036	High confidence
US 10,001,151	Air Flow Hood In force Term ends Aug 26, 2036 · High confidence	In force	Term ends Aug 26, 2036	High confidence

10 of 27 patents shown.

Pro members see all 27.

Pro members: see all 27 patents

Also on record, not counted in the 27: 11 lapsed for an unpaid fee · 49 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.

Export every term end as CSV · Pro

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.

1 abandoned · 1 no status recorded

List them