Neumayer Tekfor Engineering GmbH

32 patents currently held · Updated Nov 15, 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.

Recorded under 2 name spellings.

Ending by 2030

Feb 2027

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 Mounting assembly (US 9,175,730) comes due May 3, 2027. Unpaid by Nov 3, 2027, it lapses early.
2 fees due Jun 8 to 24, 2027 · next Jun 8

Which patents, and when each one lapses · Pro

Recent changes

1 term has ended since Aug 17, 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 7,862,440	Nut assembly and method for the production thereof In force Term ends Feb 1, 2027 · From the USPTO record	In force	Term ends Feb 1, 2027	From the USPTO record
US 7,883,424	Torque transmission device useful as a fixed constant velocity ball joint for drive shafts and method for producing such a joint In force Ends no later than Jul 5, 2027 · From the USPTO record	In force	Ends no later than Jul 5, 2027	From the USPTO record
US 8,313,587	Method for producing a torque transmission device useful as a fixed constant velocity ball joint for drive shafts In force Term ends Sep 4, 2027 · From the USPTO record	In force	Term ends Sep 4, 2027	From the USPTO record
US 8,555,508	Method for producing an internal or external part of an opposed track joint In force Term ends Aug 4, 2028 · From the USPTO record	In force	Term ends Aug 4, 2028	From the USPTO record
US 8,595,934	Method of producing a composite body In force Term ends Aug 16, 2028 · From the USPTO record	In force	Term ends Aug 16, 2028	From the USPTO record
US 7,992,533	Shaft with functional bodies such as camshafts for internal combustion engines, method of producing them and engines equipped therewith In force Term ends Sep 29, 2028 · From the USPTO record	In force	Term ends Sep 29, 2028	From the USPTO record
US 8,381,615	Shaft such as a camshaft for internal combustion engines In force Term ends Oct 28, 2029 · From the USPTO record	In force	Term ends Oct 28, 2029	From the USPTO record
US 8,393,839	Self-locking screw connection In force Term ends Dec 23, 2029 · From the USPTO record	In force	Term ends Dec 23, 2029	From the USPTO record
US 8,262,485	Vibration damper for a drive train In force Term ends Mar 12, 2030 · From the USPTO record	In force	Term ends Mar 12, 2030	From the USPTO record
US 8,075,412	Displacement unit In force Term ends Apr 10, 2030 · From the USPTO record	In force	Term ends Apr 10, 2030	From the USPTO record

10 of 32 patents shown.

Pro members see all 32.

Pro members: see all 32 patents

Also on record, not counted in the 32: 2 patents in force now held by others · 8 lapsed for an unpaid fee · 2 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.

4 no status recorded

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