16 patents currently held

6 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.

The next term ends in Dec 2030. from the record

Of the 6 now held by other companies, 6 name Data Powerworks LLC as their current owner. Each row says so.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Dec 2030

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033203420352036 2037 20382039204020412042 2043 2044 2045

notable patents 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.

Notable patents

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

Notable

Inverter, Method And Device For Controlling The Same US 10,084,391

The most cited patent in this portfolio, cited by 18 later US patents, top 25% of utility patents granted in 2018 in our data. Protection runs to 2037.

Ends Jul 2037 · High confidence Also notable

Inductor Winding Method And Inductor Winding Device US 10,763,039

Cited by 9 later US patents, top 25% of utility patents granted in 2020 in our data. Protection runs to 2038.

Ends Apr 2038 · High confidence Also notable

Air Conditioner US 8,650,898

Renewed at every maintenance window since the 2014 grant; no more fees are due before its term ends in 2030.

Ends Dec 2030 · High confidence

Formerly held, still cited

Notable

Power Supply System and Method US 10,601,246

Cited by 14 later US patents, top 25% of utility patents granted in 2020 in our data. Protection runs to 2036.

now held by Data Powerworks LLC

Ends Jan 2036 · 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.

1 fee due Apr 22, 2027
The maintenance fee for UPS Power Supply (US 10,454,300) comes due Apr 22, 2027. Unpaid by Oct 22, 2027, it lapses early.
1 fee due Sep 17, 2027
The maintenance fee for Current Limiting Control Method and Device for Three-Level Inverter (US 10,594,208) comes due Sep 17, 2027. Unpaid by Mar 17, 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 16 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Silicon Controlled Rectifier Soaking Control Method and Apparatus, and Computer-Readable Storage Medium	1 in force	to Oct 2042
Cabinet Monitoring System, Method, and Apparatus, and Electronic Device, and Computer Storage Medium	1 in force	to Jun 2042
Power Supply Module Housing and Power Supply Module Comprising Same	1 in force	to Mar 2040
Skylight Operating System of Modular Data Center	1 in force	to Jun 2038
Air Conditioner	1 in force	to Dec 2030

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 8,650,898	Air Conditioner In force Term ends Dec 6, 2030 · High confidence	In force	Term ends Dec 6, 2030	High confidence
US D930,584	Rectifier In force Term ends Sep 14, 2036 · High confidence	In force	Term ends Sep 14, 2036	High confidence
US 10,050,554	Method and Device for Controlling Vienna-Like Three-Level Circuit In force Term ends Nov 29, 2036 · High confidence	In force	Term ends Nov 29, 2036	High confidence
US 10,014,761	Control Method and Device for I-Type Three-Level Circuit In force Term ends Nov 30, 2036 · High confidence	In force	Term ends Nov 30, 2036	High confidence
US 10,084,391	Inverter, Method And Device For Controlling The Same In force Term ends Jul 28, 2037 · High confidence	In force	Term ends Jul 28, 2037	High confidence
US 10,454,300	UPS Power Supply In force Term ends Jan 15, 2038 · High confidence	In force	Term ends Jan 15, 2038	High confidence
US 10,763,039	Inductor Winding Method And Inductor Winding Device In force Term ends Apr 29, 2038 · High confidence	In force	Term ends Apr 29, 2038	High confidence
US 10,594,208	Current Limiting Control Method and Device for Three-Level Inverter In force Term ends May 15, 2038 · High confidence	In force	Term ends May 15, 2038	High confidence
US 11,044,837	Skylight Operating System of Modular Data Center In force Term ends Jun 12, 2038 · High confidence	In force	Term ends Jun 12, 2038	High confidence
US 11,991,847	Power Supply Module Housing and Power Supply Module Comprising Same In force Term ends Mar 15, 2040 · High confidence	In force	Term ends Mar 15, 2040	High confidence

10 of 16 patents shown.

Pro members see all 16.

Pro members: see all 16 patents

Also on record, not counted in the 16: 6 patents in force now held by others · 2 patents ended · 11 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.

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

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