Rotoliptic Technologies Incorporated

14 patents currently held · Updated Nov 14, 2026

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

Previously recorded as Montie Power Corporation (to 2018)

Ending by 2030

Aug 2034

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 30, 2027
The maintenance fee for Axial Load In Helical Trochoidal Rotary Machines (US 11,802,558) comes due Apr 30, 2027. Unpaid by Nov 1, 2027, it lapses early.
1 fee due May 14, 2027
The maintenance fee for Fixed-Eccentricity Helical Trochoidal Rotary Machines (US 11,815,094) comes due May 14, 2027. Unpaid by Nov 15, 2027, 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 11,506,056	Rotary Machine With Crankshaft Having Variable Rotational Rate In force Term ends Aug 1, 2034 · High confidence	In force	Term ends Aug 1, 2034	High confidence
US 10,844,720	Rotary Machine with Pressure Relief Mechanism In force Term ends Apr 2, 2035 · High confidence	In force	Term ends Apr 2, 2035	High confidence
US 10,087,758	Rotary Machine In force Term ends Aug 3, 2036 · High confidence	In force	Term ends Aug 3, 2036	High confidence
US 10,837,444	Helical Trochoidal Rotary Machines With Offset In force Term ends Sep 10, 2039 · High confidence	In force	Term ends Sep 10, 2039	High confidence
US 10,844,859	Sealing In Helical Trochoidal Rotary Machines In force Term ends Sep 10, 2039 · High confidence	In force	Term ends Sep 10, 2039	High confidence
US 11,306,720	Helical Trochoidal Rotary Machines In force Term ends Sep 10, 2039 · High confidence	In force	Term ends Sep 10, 2039	High confidence
US 11,608,827	Helical Trochoidal Rotary Machines With Offset In force Term ends Sep 10, 2039 · High confidence	In force	Term ends Sep 10, 2039	High confidence
US 11,988,208	Sealing In Helical Trochoidal Rotary Machines In force Ends no later than Sep 10, 2039 · Medium confidence	In force	Ends no later than Sep 10, 2039	Medium confidence
US 12,146,492	Helical Trochoidal Rotary Machines with Improved Solids Handling In force Term ends Sep 10, 2039 · High confidence	In force	Term ends Sep 10, 2039	High confidence
US 11,499,550	Sealing In Helical Trochoidal Rotary Machines In force Term ends Oct 28, 2039 · High confidence	In force	Term ends Oct 28, 2039	High confidence

10 of 14 patents shown.

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Pro members: see all 14 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.

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