Preferred Technology, LLC

14 patents currently held · Updated Nov 14, 2026

1 more in force is now held by another company

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

Recorded under 2 name spellings.

Ending by 2030

May 2031

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 Nov 26, 2026
The maintenance fee for Coated and Cured Proppants (US 9,040,467) comes due Nov 26, 2026. Unpaid by May 26, 2027, it lapses early.
1 fee due Mar 19, 2027
The maintenance fee for Proppant with enhanced interparticle bonding (US 11,760,924) comes due Mar 19, 2027. Unpaid by Sep 20, 2027, it lapses early.
1 fee due Jul 28, 2027
The maintenance fee for Coated and cured proppants (US 10,544,358) comes due Jul 28, 2027. Unpaid by Jan 28, 2028, it lapses early.
2 fees due Sep 17 to 22, 2027 · next Sep 17

Which patents, and when each one lapses · Pro

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

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 10,544,358	Coated and cured proppants In force Ends no later than May 3, 2031 · From the USPTO record	In force	Ends no later than May 3, 2031	From the USPTO record
US 10,087,360	Dual Function Proppants In force Term ends Sep 2, 2031 · High confidence	In force	Term ends Sep 2, 2031	High confidence
US 8,993,489	Coated and Cured Proppants In force Term ends Jan 13, 2032 · High confidence	In force	Term ends Jan 13, 2032	High confidence
US 9,290,690	Coated and Cured Proppants In force Term ends May 13, 2032 · Medium confidence	In force	Term ends May 13, 2032	Medium confidence
US 9,518,214	Proppant with polyurea-type coating In force Term ends Mar 15, 2033 · From the USPTO record	In force	Term ends Mar 15, 2033	From the USPTO record
US 11,098,242	Proppant with enhanced interparticle bonding In force Ends no later than May 17, 2033 · From the USPTO record	In force	Ends no later than May 17, 2033	From the USPTO record
US 11,760,924	Proppant with enhanced interparticle bonding In force Ends no later than May 17, 2033 · From the USPTO record	In force	Ends no later than May 17, 2033	From the USPTO record
US 9,040,467	Coated and Cured Proppants In force Term ends Jun 15, 2033 · High confidence	In force	Term ends Jun 15, 2033	High confidence
US 10,100,247	Proppant with enhanced interparticle bonding In force Term ends Jan 23, 2034 · From the USPTO record	In force	Term ends Jan 23, 2034	From the USPTO record
US 9,562,187	Manufacture of polymer coated proppants In force Term ends May 2, 2034 · From the USPTO record	In force	Term ends May 2, 2034	From the USPTO record

10 of 14 patents shown.

Pro members see all 14.

Pro members: see all 14 patents

Also on record, not counted in the 14: 1 patent in force now held by others · 6 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

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.

1 pending · 16 no status recorded

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