Megger Instruments Ltd

10 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

Jun 2031

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 Aug 20, 2027
The maintenance fee for Meter for measuring an electrical parameter (US 11,906,554) comes due Aug 20, 2027. Unpaid by Feb 22, 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.

Showing 1 to 10 of 10

Patent	Title	Status	Expires	Confidence
US 8,461,853	High voltage liquid dielectric test vessel In force Term ends Jun 2, 2031 · From the USPTO record	In force	Term ends Jun 2, 2031	From the USPTO record
US 9,819,113	Electrical connection apparatus In force Term ends Feb 10, 2035 · From the USPTO record	In force	Term ends Feb 10, 2035	From the USPTO record
US 10,060,871	Test apparatus and method for testing an electrical property of a fluid In force Term ends Jun 21, 2036 · From the USPTO record	In force	Term ends Jun 21, 2036	From the USPTO record
US 11,906,554	Meter for measuring an electrical parameter In force Term ends May 14, 2038 · From the USPTO record	In force	Term ends May 14, 2038	From the USPTO record
US 11,009,537	Flexible current sensor In force Term ends Jul 26, 2038 · From the USPTO record	In force	Term ends Jul 26, 2038	From the USPTO record
US 11,454,678	Electrical plug and methods for testing an electrical mains socket and an electrical mains plug In force Term ends Jun 17, 2039 · From the USPTO record	In force	Term ends Jun 17, 2039	From the USPTO record
US 11,525,846	Meter for measuring an electrical parameter In force Term ends Nov 12, 2039 · From the USPTO record	In force	Term ends Nov 12, 2039	From the USPTO record
US 11,346,865	Multi-use test lead In force Term ends Aug 31, 2040 · From the USPTO record	In force	Term ends Aug 31, 2040	From the USPTO record
US 12,019,107	Measuring loop resistance In force Term ends May 10, 2041 · From the USPTO record	In force	Term ends May 10, 2041	From the USPTO record
US 12,704,551	Method and Apparatus for Performing a Surge Test of Electrical Insulation In force Term ends Oct 18, 2044 · High confidence	In force	Term ends Oct 18, 2044	High confidence

Also on record, not counted in the 10: 2 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.

3 pending

List them