Kapp GmbH

8 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

May 2028

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 25, 2027
The maintenance fee for Method for machining a workpiece with a worm-shaped cutting tool (US 9,114,466) comes due Feb 25, 2027. Unpaid by Aug 25, 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.

Showing 1 to 8 of 8

Patent	Title	Status	Expires	Confidence
US 7,632,172	Hard finishing machine In force Term ends May 9, 2028 · From the USPTO record	In force	Term ends May 9, 2028	From the USPTO record
US 7,972,197	Grinding Machine for Grinding of a Gear In force Term ends Oct 24, 2029 · High confidence	In force	Term ends Oct 24, 2029	High confidence
US 8,147,296	Method and grinding machine for dressing of a grinding tool In force Term ends Oct 13, 2030 · From the USPTO record	In force	Term ends Oct 13, 2030	From the USPTO record
US 8,313,357	Method for the production of a workpiece and grinding machine In force Term ends May 25, 2031 · From the USPTO record	In force	Term ends May 25, 2031	From the USPTO record
US 8,506,358	Method for the operation of a gear or profile grinding machine and gear or profile grinding machine In force Term ends Dec 13, 2031 · From the USPTO record	In force	Term ends Dec 13, 2031	From the USPTO record
US 8,523,634	Method for the grinding of a profile of a workpiece In force Term ends Feb 1, 2032 · From the USPTO record	In force	Term ends Feb 1, 2032	From the USPTO record
US 8,926,403	Method for dressing of a multiple thread grinding worm and for grinding and grinding worm In force Term ends Apr 17, 2033 · From the USPTO record	In force	Term ends Apr 17, 2033	From the USPTO record
US 9,114,466	Method for machining a workpiece with a worm-shaped cutting tool In force Term ends Dec 5, 2033 · From the USPTO record	In force	Term ends Dec 5, 2033	From the USPTO record

Also on record, not counted in the 8: 2 lapsed for an unpaid fee · 1 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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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 no status recorded

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