Compressor Controls LLC

11 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

Mar 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.

1 fee due Sep 17, 2027
The maintenance fee for Turbocompressor Antisurge Control by Vibration Monitoring (US 10,590,943) comes due Sep 17, 2027. Unpaid by Mar 17, 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 8,540,498	Compressor-Expander Set Critical Speed Avoidance In force Term ends Mar 13, 2028 · Medium confidence	In force	Term ends Mar 13, 2028	Medium confidence
US 10,935,036	Enhanced Turbocompressor Startup In force Term ends Jan 22, 2029 · Medium confidence	In force	Term ends Jan 22, 2029	Medium confidence
US 9,879,688	Enhanced Turbocompressor Startup In force Term ends Apr 25, 2031 · Medium confidence	In force	Term ends Apr 25, 2031	Medium confidence
US 8,323,000	Compressor-Driver Power Limiting in Consideration of Antisurge Control In force Term ends Oct 5, 2031 · High confidence	In force	Term ends Oct 5, 2031	High confidence
US 8,360,744	Compressor-expander set critical speed avoidance In force Term ends Nov 30, 2031 · From the USPTO record	In force	Term ends Nov 30, 2031	From the USPTO record
US 10,590,943	Turbocompressor Antisurge Control by Vibration Monitoring In force Term ends Mar 17, 2033 · High confidence	In force	Term ends Mar 17, 2033	High confidence
US 9,624,936	Turbocompressor Antisurge Control by Vibration Monitoring In force Term ends Jan 27, 2036 · High confidence	In force	Term ends Jan 27, 2036	High confidence
US 11,613,999	System and Method for Detecting Deterioration of a Control Valve In force Term ends May 2, 2040 · High confidence	In force	Term ends May 2, 2040	High confidence
US 11,486,408	Systems and Methods for Adapting Compressor Controller Based on Field Conditions In force Term ends Jan 14, 2041 · High confidence	In force	Term ends Jan 14, 2041	High confidence
US 11,578,727	Methods and System for Control of Compressors with Both Variable Speed and Guide Vanes Position In force Term ends Sep 8, 2041 · High confidence	In force	Term ends Sep 8, 2041	High confidence

10 of 11 patents shown.

Pro members see all 11.

Pro members: see all 11 patents

Also on record, not counted in the 11: 6 lapsed for an unpaid fee · 32 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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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 no status recorded

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