Mainstream Pine Products, LLC

20 patents currently held · Updated Nov 14, 2026

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

Ending by 2030

Mar 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 Feb 6, 2027
The maintenance fee for Compounds and Method for Enhanced Oil Recovery Using Sulfur Surfactants (US 10,370,582) comes due Feb 6, 2027. Unpaid by Aug 6, 2027, it lapses early.
1 fee due Mar 19, 2027
The maintenance fee for Lubricant thickener systems from modified tall oil fatty acids, lubricating compositions, and associated methods (US 11,760,952) comes due Mar 19, 2027. Unpaid by Sep 20, 2027, it lapses early.
3 fees due Apr 8 to 30, 2027 · next Apr 8
1 fee due May 14, 2027
The maintenance fee for Fatty acid and rosin acid ester compositions for use as plasticizers in adhesive formulations and associated methods of use (US 11,814,557) comes due May 14, 2027. Unpaid by Nov 15, 2027, it lapses early.
2 fees due Sep 3 to 24, 2027 · next Sep 3
1 fee due Oct 5, 2027
The maintenance fee for Aliphatically Modified Rosin Resin and Tackified Adhesive (US 9,303,195) comes due Oct 5, 2027. Unpaid by Apr 5, 2028, it lapses early.

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 8,133,970	Oxidized and Maleated Derivative Compositions In force Term ends Mar 2, 2029 · High confidence	In force	Term ends Mar 2, 2029	High confidence
US 8,071,715	Maleated and Oxidized Fatty Acids In force Term ends Mar 12, 2029 · High confidence	In force	Term ends Mar 12, 2029	High confidence
US 8,741,171	Dedusting Compositions and Methods for Making and Using Same In force Term ends Jul 31, 2029 · High confidence	In force	Term ends Jul 31, 2029	High confidence
US 8,557,138	Pitch Emulsions In force Term ends Nov 14, 2029 · High confidence	In force	Term ends Nov 14, 2029	High confidence
US 10,435,619	Compounds and Method for Enhanced Oil Recovery Using Sulfur Surfactants In force Term ends Mar 13, 2034 · High confidence	In force	Term ends Mar 13, 2034	High confidence
US 10,577,530	Compounds and Method for Enhanced Oil Recovery Using Sulfur Surfactants In force Term ends Mar 13, 2034 · High confidence	In force	Term ends Mar 13, 2034	High confidence
US 10,435,611	Methods for Producing Emulsifiers for Oil-Based Drilling Fluids In force Term ends Aug 18, 2034 · High confidence	In force	Term ends Aug 18, 2034	High confidence
US 11,142,676	Methods for producing emulsifiers for oil-based drilling fluids In force Term ends Aug 23, 2034 · From the USPTO record	In force	Term ends Aug 23, 2034	From the USPTO record
US 9,303,195	Aliphatically Modified Rosin Resin and Tackified Adhesive In force Term ends Sep 24, 2034 · High confidence	In force	Term ends Sep 24, 2034	High confidence
US 9,868,891	Methods for Producing Emulsifiers for Oil-Based Drilling Fluids In force Term ends Oct 10, 2035 · High confidence	In force	Term ends Oct 10, 2035	High confidence

10 of 20 patents shown.

Pro members see all 20.

Pro members: see all 20 patents

Also on record, not counted in the 20: 1 lapsed for an unpaid fee · 3 ended at full term. 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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