D&E US Parent LLC

26 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

Feb 2032

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 Dec 4 to 25, 2026 · next Dec 4
2 fees due Apr 1 to 29, 2027 · next Apr 1
1 fee due May 26, 2027
The maintenance fee for Apparatuses and Methods for Connector Stiffness Management (US 10,489,532) comes due May 26, 2027. Unpaid by Nov 26, 2027, it lapses early.
1 fee due Oct 26, 2027
The maintenance fee for Mesh-Based Shape Optimization Systems and Methods (US 9,323,869) comes due Oct 26, 2027. Unpaid by Apr 26, 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 10,055,896	Interactive Vertex Manipulation System and Methods for Geometry Repair In force Term ends Feb 16, 2032 · High confidence	In force	Term ends Feb 16, 2032	High confidence
US 11,132,477	Interactive Simulation and Solver for Mechanical, Fluid, and Electro-Mechanical Systems In force Term ends Jan 9, 2033 · High confidence	In force	Term ends Jan 9, 2033	High confidence
US 8,996,342	Automatic Variable Fidelity Simulation In force Term ends Jan 15, 2033 · High confidence	In force	Term ends Jan 15, 2033	High confidence
US 8,942,963	Directed Design Updates in Engineering Methods for Systems In force Term ends Apr 30, 2033 · High confidence	In force	Term ends Apr 30, 2033	High confidence
US 10,430,529	Directed Design Updates in Engineering Methods for Systems In force Term ends Jun 9, 2033 · High confidence	In force	Term ends Jun 9, 2033	High confidence
US 8,970,590	Surface Mesh Generation Systems and Methods In force Term ends Jun 13, 2033 · High confidence	In force	Term ends Jun 13, 2033	High confidence
US 10,078,912	Mesh Component Design for Finite Element Methods and Systems In force Term ends Sep 29, 2033 · High confidence	In force	Term ends Sep 29, 2033	High confidence
US 10,311,169	Interactive Edge Manipulation Systems and Methods In force Term ends Dec 24, 2033 · High confidence	In force	Term ends Dec 24, 2033	High confidence
US 10,013,510	Replacement Part Suggestion Methods and Systems In force Term ends Jan 17, 2034 · High confidence	In force	Term ends Jan 17, 2034	High confidence
US 10,331,808	Feature Recognition in Engineering Methods and Systems In force Term ends Mar 29, 2034 · High confidence	In force	Term ends Mar 29, 2034	High confidence

10 of 26 patents shown.

Pro members see all 26.

Pro members: see all 26 patents

Also on record, not counted in the 26: 1 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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