Enthone GmbH

31 patents currently held · Updated Nov 14, 2026

2 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.

Ending by 2030

Dec 2026

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 May 3, 2027
The maintenance fee for Immersion Tin Silver Plating in Electronics Manufacture (US 9,175,400) comes due May 3, 2027. Unpaid by Nov 3, 2027, it lapses early.
3 fees due Jun 15 to 29, 2027 · next Jun 15
1 fee due Aug 2, 2027
The maintenance fee for Beta-Amino Acid Comprising Plating Formulation (US 9,249,513) comes due Aug 2, 2027. Unpaid by Feb 2, 2028, it lapses early.
1 fee due Nov 10, 2027
The maintenance fee for Adhesion Promotion in Printed Circuit Boards (US 9,338,896) comes due Nov 10, 2027. Unpaid by May 10, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

3 terms have ended 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 7,578,947	Method for Etching Non-Conductive Substrate Surfaces In force Term ends Dec 12, 2026 · High confidence	In force	Term ends Dec 12, 2026	High confidence
US 7,578,888	Method for Treating Laser-Structured Plastic Surfaces In force Term ends Mar 5, 2027 · High confidence	In force	Term ends Mar 5, 2027	High confidence
US 7,713,859	Tin-Silver Solder Bumping in Electronics Manufacture In force Term ends Jun 25, 2027 · High confidence	In force	Term ends Jun 25, 2027	High confidence
US 8,703,243	Anti-Tarnish Coatings In force Term ends Nov 21, 2027 · High confidence	In force	Term ends Nov 21, 2027	High confidence
US 8,906,217	Composite Coatings for Whisker Reduction In force Term ends Dec 11, 2027 · Medium confidence	In force	Term ends Dec 11, 2027	Medium confidence
US 9,212,427	Cyanide-Free Electrolyte Composition, and Method for the Deposition of Silver or Silver Alloy Layers on Substrates In force Term ends Jan 14, 2028 · High confidence	In force	Term ends Jan 14, 2028	High confidence
US 7,794,531	Organic Solderability Preservative Comprising High Boiling Temperature Alcohol In force Term ends Jun 28, 2028 · High confidence	In force	Term ends Jun 28, 2028	High confidence
US 8,202,431	Method for Removing Impurities from a Metal Deposition Process Solution In force Term ends Jul 31, 2028 · High confidence	In force	Term ends Jul 31, 2028	High confidence
US 7,670,950	Copper Metallization of Through Silicon Via In force Term ends Aug 4, 2028 · High confidence	In force	Term ends Aug 4, 2028	High confidence
US 8,057,678	Maintenance of Metallization Baths In force Term ends Sep 26, 2028 · High confidence	In force	Term ends Sep 26, 2028	High confidence

10 of 31 patents shown.

Pro members see all 31.

Pro members: see all 31 patents

Also on record, not counted in the 31: 2 patents in force now held by others · 18 lapsed for an unpaid fee · 60 ended at full term · 1 surrendered on reissue. 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.

11 abandoned · 27 no status recorded

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