Cactus Materials, Inc.

13 patents currently held · Updated Nov 14, 2026

2 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

Mar 2030

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 Jun 15, 2027
The maintenance fee for Multi-Junction Solar Cell with Dilute Nitride Sub-Cell Having Graded Doping (US 9,214,580) comes due Jun 15, 2027. Unpaid by Dec 15, 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
2 terms have ended 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.

Patent	Title	Status	Expires	Confidence
US 8,912,433	Lattice Matchable Alloy for Solar Cells In force Term ends Mar 29, 2030 · Medium confidence	In force	Term ends Mar 29, 2030	Medium confidence
US 9,214,580	Multi-Junction Solar Cell with Dilute Nitride Sub-Cell Having Graded Doping In force Term ends Aug 23, 2031 · High confidence	In force	Term ends Aug 23, 2031	High confidence
US 8,962,989	Flexible Hermetic Semiconductor Solar Cell Package with Non-Hermetic Option In force Term ends Sep 15, 2031 · High confidence	In force	Term ends Sep 15, 2031	High confidence
US 8,912,617	Method for Making Semiconductor Light Detection Devices In force Term ends Oct 27, 2031 · High confidence	In force	Term ends Oct 27, 2031	High confidence
US 8,962,991	Pseudomorphic Window Layer for Multijunction Solar Cells In force Term ends Feb 18, 2032 · High confidence	In force	Term ends Feb 18, 2032	High confidence
US 8,962,993	High Efficiency Multijunction Solar Cells In force Ends no later than Nov 15, 2032 · Low confidence	In force	Ends no later than Nov 15, 2032	Low confidence
US 8,962,988	Integrated Semiconductor Solar Cell Package In force Term ends Nov 30, 2032 · High confidence	In force	Term ends Nov 30, 2032	High confidence
US 10,916,675	High efficiency multijunction photovoltaic cells In force Term ends Apr 2, 2036 · From the USPTO record	In force	Term ends Apr 2, 2036	From the USPTO record
US 10,930,808	Hybrid MOCVD/MBE epitaxial growth of high-efficiency lattice-matched multijunction solar cells In force Term ends Jun 26, 2038 · From the USPTO record	In force	Term ends Jun 26, 2038	From the USPTO record
US 11,211,514	Short wavelength infrared optoelectronic devices having graded or stepped dilute nitride active regions In force (reinstated) Term ends Apr 20, 2040 · From the USPTO record	In force (reinstated)	Term ends Apr 20, 2040	From the USPTO record

10 of 13 patents shown.

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Pro members: see all 13 patents

Also on record, not counted in the 13: 2 patents in force now held by others · 19 lapsed for an unpaid fee. 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.