d-MATRIX CORPORATION

27 patents currently held · Updated Nov 15, 2026

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

Recorded under 2 name spellings.

Ending by 2030

Nov 2029

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 Apr 6, 2027
The maintenance fee for Unified System Area Network and Switch (US 9,152,597) comes due Apr 6, 2027. Unpaid by Oct 6, 2027, it lapses early.
1 fee due Jun 19, 2027
The maintenance fee for AI Accelerator Apparatus Using In-Memory Compute Chiplet Devices for Transformer Workloads (US 11,847,072) comes due Jun 19, 2027. Unpaid by Dec 20, 2027, it lapses early.
1 fee due Jul 30, 2027
The maintenance fee for AI accelerator apparatus using in-memory compute chiplet devices for transformer workloads (US 11,886,359) comes due Jul 30, 2027. Unpaid by Jan 31, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

5 of the patents on this record were granted since Aug 17, 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 9,152,597	Unified System Area Network and Switch In force Term ends Nov 5, 2029 · High confidence	In force	Term ends Nov 5, 2029	High confidence
US 9,448,957	Unified System Area Network and Switch In force Term ends Nov 5, 2029 · High confidence	In force	Term ends Nov 5, 2029	High confidence
US 8,868,777	Unified System Area Network and Switch In force Term ends Nov 6, 2029 · High confidence	In force	Term ends Nov 6, 2029	High confidence
US 8,463,934	Unified System Area Network and Switch In force Term ends Aug 20, 2030 · High confidence	In force	Term ends Aug 20, 2030	High confidence
US 8,359,401	Network Switch In force Term ends Nov 3, 2030 · High confidence	In force	Term ends Nov 3, 2030	High confidence
US 9,519,606	Network Switch In force Term ends Jul 7, 2035 · High confidence	In force	Term ends Jul 7, 2035	High confidence
US 11,593,291	Methods and Apparatus for High-Speed Data Bus Connection and Fabric Management In force Term ends Sep 10, 2039 · High confidence	In force	Term ends Sep 10, 2039	High confidence
US 11,403,247	Methods and Apparatus for Network Interface Fabric Send/Receive Operations In force Term ends Sep 9, 2040 · High confidence	In force	Term ends Sep 9, 2040	High confidence
US 12,086,087	Methods and Apparatus for Network Interface Fabric Operations In force Ends no later than Sep 9, 2040 · Medium confidence	In force	Ends no later than Sep 9, 2040	Medium confidence
US 11,392,528	Methods and Apparatus for DMA Engine Descriptors for High Speed Data Systems In force Term ends Oct 23, 2040 · High confidence	In force	Term ends Oct 23, 2040	High confidence

10 of 27 patents shown.

Pro members see all 27.

Pro members: see all 27 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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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.

8 pending · 1 no status recorded

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