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9 patents currently held · Updated Nov 14, 2026

13 more in force are now held by other companies

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

Ending by 2030

May 2038

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 Mar 12, 2027
The maintenance fee for Multipurpose latch for jack-up rig (US 11,753,895) comes due Mar 12, 2027. Unpaid by Sep 13, 2027, 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.

Showing 1 to 9 of 9

Patent	Title	Status	Expires	Confidence
US 10,738,558	Modular rotating diverter head In force Term ends May 21, 2038 · From the USPTO record	In force	Term ends May 21, 2038	From the USPTO record
US 10,883,357	Autonomous drilling pressure control system In force Term ends Oct 7, 2038 · From the USPTO record	In force	Term ends Oct 7, 2038	From the USPTO record
US 11,280,413	Choke valve having gate body with multiple metering segments In force Term ends Apr 3, 2040 · From the USPTO record	In force	Term ends Apr 3, 2040	From the USPTO record
US 11,326,415	Rotating diverter head with remote controlled clamping system In force Term ends Oct 29, 2040 · From the USPTO record	In force	Term ends Oct 29, 2040	From the USPTO record
US 11,536,109	Rotatable wear sleeve for wellhead pressure-control device In force Term ends Oct 27, 2041 · From the USPTO record	In force	Term ends Oct 27, 2041	From the USPTO record
US 11,753,895	Multipurpose latch for jack-up rig In force Term ends Apr 21, 2042 · From the USPTO record	In force	Term ends Apr 21, 2042	From the USPTO record
US 12,209,491	Automated sand dump system for oil and gas wells In force Term ends Mar 22, 2043 · From the USPTO record	In force	Term ends Mar 22, 2043	From the USPTO record
US 12,716,330	Well Integrity System and Method In force Term ends May 30, 2043 · High confidence	In force	Term ends May 30, 2043	High confidence
US 12,503,937	Autonomous Drilling System with Integrated AI In force Term ends Aug 23, 2044 · High confidence	In force	Term ends Aug 23, 2044	High confidence

Also on record, not counted in the 9: 13 patents in force now held by others · 9 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

Every application published under this name has become a patent.