125 patents currently held

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

The next term ends in Oct 2027. from the record

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Alerts on its grants, lapses and transfers.

Ending by 2030

Oct 2027

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027 2028 202920302031203220332034 2035 2036 2037 2038 2039 2040 2041 2042 2043 20442045

notable patents fee due within 90 days all others Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know

Notable: the highest-ranked patents in this portfolio by citations and family size. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.

Notable patents

Ranked by citations and family size, against patents of the same kind granted the same year. How we rank

Notable

Method for Making Semiconductor Device Including Superlattice with Oxygen and Carbon Monolayers US 11,848,356

Cited by 20 later US patents, top 5% of utility patents granted in 2023 in our data. Protection runs to 2041. A terminal disclaimer caps this term to an earlier patent's.

Ends Jun 2041 · High confidence Also notable

Semiconductor Device Including Superlattice with Oxygen and Carbon Monolayers US 11,837,634

Cited by 15 later US patents, top 5% of utility patents granted in 2023 in our data. Protection runs to 2041. A terminal disclaimer caps this term to an earlier patent's.

Ends Jun 2041 · High confidence Also notable

Semiconductor Device Including a Superlattice and an Asymmetric Channel and Related Methods US 11,329,154

Cited by 35 later US patents, top 5% of utility patents granted in 2022 in our data. Protection runs to 2040.

Ends Apr 2040 · High confidence

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 Nov 30, 2026
1 fee due Dec 20, 2026
The maintenance fee for Method for Making Semiconductor Device Including Superlattice with O18 Enriched Monolayers (US 11,682,712) comes due Dec 20, 2026. Unpaid by Jun 21, 2027, it lapses early.
4 fees due Jan 16 to 30, 2027 · next Jan 16
5 fees due Feb 8 to 28, 2027 · next Feb 8
1 fee due Mar 10, 2027
The maintenance fee for Semiconductor Device Including a Superlattice as a Gettering Layer (US 10,410,880) comes due Mar 10, 2027. Unpaid by Sep 10, 2027, it lapses early.
2 fees due Apr 22 to 29, 2027 · next Apr 22
2 fees due May 5 to 7, 2027 · next May 5
2 fees due Jun 5 to 19, 2027 · next Jun 5
3 fees due Jul 7 to 9, 2027 · next Jul 7
1 fee due Aug 18, 2027
The maintenance fee for Semiconductor Device Including Superlattice Structures with Reduced Defect Densities (US 10,566,191) comes due Aug 18, 2027. Unpaid by Feb 18, 2028, it lapses early.
9 fees due Sep 1 to 30, 2027 · next Sep 1
2 fees due Oct 7 to 28, 2027 · next Oct 7
1 fee due Nov 7, 2027
The maintenance fee for Gate-All-Around (GAA) Device Including a Superlattice (US 11,978,771) comes due Nov 7, 2027. Unpaid by May 8, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

2 of the patents on this record were granted since Aug 16, 2026

What they patent

The 5 largest of its 86 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Semiconductor Device Including Superlattice with Oxygen and Carbon Monolayers	4 in force	to Jun 2042
Semiconductor Device Including a Superlattice and an Asymmetric Channel and Related Methods	4 in force	to Apr 2040
Semiconductor Device Including Superlattice with O18 Enriched Monolayers	3 in force	to Dec 2041
Method for Making Semiconductor Device Including a Superlattice and Enriched Silicon 28 Epitaxial Layer	3 in force	to Sep 2041
Methods for Making Bipolar Junction Transistors Including Emitter-Base and Base-Collector Superlattices	3 in force	to Oct 2040

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 7,517,702	Method for Making an Electronic Device Including a Poled Superlattice Having a Net Electrical Dipole Moment In force Term ends Oct 15, 2027 · High confidence	In force	Term ends Oct 15, 2027	High confidence
US 7,718,996	Semiconductor Device Comprising a Lattice Matching Layer In force Term ends Dec 15, 2027 · High confidence	In force	Term ends Dec 15, 2027	High confidence
US 7,625,767	Methods of Making Spintronic Devices with Constrained Spintronic Dopant In force Term ends Feb 4, 2028 · High confidence	In force	Term ends Feb 4, 2028	High confidence
US 7,863,066	Method for Making a Multiple-Wavelength Opto-Electronic Device Including a Superlattice In force Term ends Aug 2, 2028 · High confidence	In force	Term ends Aug 2, 2028	High confidence
US 7,700,447	Method for Making a Semiconductor Device Comprising a Lattice Matching Layer In force Term ends Oct 30, 2028 · High confidence	In force	Term ends Oct 30, 2028	High confidence
US 7,812,339	Method for Making a Semiconductor Device Including Shallow Trench Isolation (STI) Regions with Maskless Superlattice Deposition Following Sti Formation and Related Structures In force Term ends Nov 30, 2028 · High confidence	In force	Term ends Nov 30, 2028	High confidence
US 7,781,827	Semiconductor Device with a Vertical MOSFET Including a Superlattice and Related Methods In force Term ends Feb 20, 2029 · High confidence	In force	Term ends Feb 20, 2029	High confidence
US 7,928,425	Semiconductor Device Including a Metal-To-Semiconductor Superlattice Interface Layer and Related Methods In force Ends no later than Jul 19, 2029 · Medium confidence	In force	Ends no later than Jul 19, 2029	Medium confidence
US 7,880,161	Multiple-Wavelength Opto-Electronic Device Including a Superlattice In force Term ends Oct 16, 2029 · High confidence	In force	Term ends Oct 16, 2029	High confidence
US 9,275,996	Vertical Semiconductor Devices Including Superlattice Punch Through Stop Layer and Related Methods In force Term ends Nov 21, 2034 · High confidence	In force	Term ends Nov 21, 2034	High confidence

10 of 125 patents shown.

Pro members see all 125.

Pro members: see all 125 patents

Also on record, not counted in the 125: 44 patents ended · 66 applications pending · 1 application abandoned. List them

Sources and methods

Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built

Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.

Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

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