Stellar Semiconductor Technologies LLC

15 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

Nov 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 Dec 9, 2026
The maintenance fee for Semiconductor Structure Having Contact Plug and Method of Making the Same (US 9,054,172) comes due Dec 9, 2026. Unpaid by Jun 9, 2027, it lapses early.
2 fees due Jun 10 to 22, 2027 · next Jun 10
1 fee due Sep 8, 2027
The maintenance fee for Semiconductor Structure Having Contact Plug and Method of Making the Same (US 9,281,367) comes due Sep 8, 2027. Unpaid by Mar 8, 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 8,975,672	Metal Oxide Semiconductor Transistor and Manufacturing Method Thereof In force Term ends Nov 9, 2031 · High confidence	In force	Term ends Nov 9, 2031	High confidence
US 9,219,140	Metal Oxide Semiconductor Transistor and Manufacturing Method Thereof In force Term ends Nov 9, 2031 · High confidence	In force	Term ends Nov 9, 2031	High confidence
US 9,875,901	Manufacturing Method of Metal Oxide Semiconductor Transistor In force Term ends Nov 9, 2031 · High confidence	In force	Term ends Nov 9, 2031	High confidence
US 9,281,367	Semiconductor Structure Having Contact Plug and Method of Making the Same In force Term ends Dec 5, 2032 · High confidence	In force	Term ends Dec 5, 2032	High confidence
US 10,049,929	Method of Making Semiconductor Structure Having Contact Plug In force Term ends Dec 5, 2032 · High confidence	In force	Term ends Dec 5, 2032	High confidence
US 9,054,172	Semiconductor Structure Having Contact Plug and Method of Making the Same In force Term ends Jan 7, 2033 · High confidence	In force	Term ends Jan 7, 2033	High confidence
US 9,673,100	Semiconductor Device Having Contact Plug in Two Dielectric Layers and Two Etch Stop Layers In force Term ends Nov 10, 2034 · High confidence	In force	Term ends Nov 10, 2034	High confidence
US 9,379,119	Static Random Access Memory In force Term ends Jun 24, 2035 · High confidence	In force	Term ends Jun 24, 2035	High confidence
US 9,589,966	Static Random Access Memory In force Ends no later than Jun 29, 2035 · Medium confidence	In force	Ends no later than Jun 29, 2035	Medium confidence
US 9,899,267	Semiconductor Device and Manufacturing Method Thereof In force Term ends Dec 25, 2036 · High confidence	In force	Term ends Dec 25, 2036	High confidence

10 of 15 patents shown.

Pro members see all 15.

Pro members: see all 15 patents

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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