6K Inc.

40 patents currently held · Updated Nov 14, 2026

3 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.

Previously recorded as Amastan Technologies Inc. (to 2020)

Ending by 2030

Jan 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.

2 fees due Feb 8 to 22, 2027 · next Feb 8
1 fee due Apr 30, 2027
The maintenance fee for Method of Manufacturing Core-Shell Particles by a Microwave Plasma Process (US 11,801,555) comes due Apr 30, 2027. Unpaid by Nov 1, 2027, it lapses early.
1 fee due May 12, 2027
The maintenance fee for Microwave plasma torch generating laminar flow for materials processing (US 10,477,665) comes due May 12, 2027. Unpaid by Nov 12, 2027, it lapses early.
3 fees due Jun 8 to 26, 2027 · next Jun 8
2 fees due Jul 26 to 28, 2027 · next Jul 26
1 fee due Aug 16, 2027
The maintenance fee for Method for the densification and spheroidization of solid and solution precursor droplets of materials using microwave generated plasma processing (US 9,259,785) comes due Aug 16, 2027. Unpaid by Feb 16, 2028, it lapses early.
1 fee due Sep 5, 2027
The maintenance fee for Systems and Methods for Synthesis of Spheroidized Metal Powders (US 11,919,071) comes due Sep 5, 2027. Unpaid by Mar 6, 2028, it lapses early.
2 fees due Oct 16 to 26, 2027 · next Oct 16
1 fee due Nov 5, 2027
The maintenance fee for Process for Producing Spheroidized Powder from Feedstock Materials (US 10,639,712) comes due Nov 5, 2027. Unpaid by May 5, 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

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 9,932,673	Microwave plasma apparatus and method for materials processing In force Term ends Jan 4, 2029 · From the USPTO record	In force	Term ends Jan 4, 2029	From the USPTO record
US 8,748,785	Microwave plasma apparatus and method for materials processing In force Term ends Aug 23, 2031 · From the USPTO record	In force	Term ends Aug 23, 2031	From the USPTO record
US 9,782,791	High Frequency Uniform Droplet Maker and Method In force Term ends Sep 28, 2032 · Medium confidence	In force	Term ends Sep 28, 2032	Medium confidence
US 9,206,085	Method for densification and spheroidization of solid and solution precursor droplets of materials using microwave generated plasma processing In force Ends no later than Nov 13, 2032 · From the USPTO record	In force	Ends no later than Nov 13, 2032	From the USPTO record
US 9,259,785	Method for the densification and spheroidization of solid and solution precursor droplets of materials using microwave generated plasma processing In force Term ends Nov 13, 2032 · From the USPTO record	In force	Term ends Nov 13, 2032	From the USPTO record
US 9,242,224	Method for the production of multiphase composite materials using microwave plasma process In force Ends no later than Dec 4, 2032 · From the USPTO record	In force	Ends no later than Dec 4, 2032	From the USPTO record
US 9,643,891	Method for making amorphous particles using a uniform melt-state in a microwave generated plasma torch In force Term ends Dec 17, 2032 · From the USPTO record	In force	Term ends Dec 17, 2032	From the USPTO record
US 8,951,496	Method for Making Amorphous Particles Using a Uniform Melt-State in a Microwave Generated Plasma Torch In force Ends no later than Mar 5, 2033 · Medium confidence	In force	Ends no later than Mar 5, 2033	Medium confidence
US 9,023,259	Method for the densification and spheroidization of solid and solution precursor droplets of materials using microwave generated plasma processing In force Term ends May 7, 2033 · From the USPTO record	In force	Term ends May 7, 2033	From the USPTO record
US 9,321,071	High Frequency Uniform Droplet Maker and Method In force Term ends Nov 4, 2033 · High confidence	In force	Term ends Nov 4, 2033	High confidence

10 of 40 patents shown.

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Pro members: see all 40 patents

Also on record, not counted in the 40: 3 patents in force now held by others. 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

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.

5 pending · 18 abandoned · 3 no status recorded

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