Wavetamer LLC

23 patents currently held · Updated Nov 14, 2026

3 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

May 2039

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 Nov 16, 2026
The maintenance fee for Gyroscopic Boat Roll Stabilizer (US 11,649,017) comes due Nov 16, 2026. Unpaid by May 17, 2027, it lapses early.
3 fees due Apr 10 to 30, 2027 · next Apr 10
2 fees due May 7 to 21, 2027 · next May 7
2 fees due Jul 16, 2027
1 fee due Aug 6, 2027
The maintenance fee for Gyroscopic Boat Roll Stabilizer (US 11,891,157) comes due Aug 6, 2027. Unpaid by Feb 7, 2028, it lapses early.
2 fees due Oct 16 to 23, 2027 · next Oct 16

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 11,801,923	Gyroscopic Boat Roll Stabilizer In force Term ends May 31, 2039 · High confidence	In force	Term ends May 31, 2039	High confidence
US 11,873,065	Gyroscopic Boat Roll Stabilizer In force Term ends May 31, 2039 · Low confidence	In force	Term ends May 31, 2039	Low confidence
US 11,891,157	Gyroscopic Boat Roll Stabilizer In force Term ends May 31, 2039 · Medium confidence	In force	Term ends May 31, 2039	Medium confidence
US 12,195,146	Gyroscopic Boat Roll Stabilizer In force Term ends May 31, 2039 · High confidence	In force	Term ends May 31, 2039	High confidence
US 12,319,391	Gyroscopic Boat Roll Stabilizer In force Term ends May 31, 2039 · Low confidence	In force	Term ends May 31, 2039	Low confidence
US 12,691,981	Gyroscopic Boat Roll Stabilizer In force Term ends May 31, 2039 · Medium confidence	In force	Term ends May 31, 2039	Medium confidence
US 11,628,914	Braking System for Gyroscopic Boat Roll Stabilizer In force Term ends Mar 27, 2040 · High confidence	In force	Term ends Mar 27, 2040	High confidence
US 11,820,469	Braking System for Gyroscopic Boat Roll Stabilizer In force Term ends Mar 27, 2040 · High confidence	In force	Term ends Mar 27, 2040	High confidence
US 11,964,735	Braking System for Gyroscopic Boat Roll Stabilizer In force Term ends Mar 27, 2040 · High confidence	In force	Term ends Mar 27, 2040	High confidence
US 11,873,064	Gyroscopic boat roll stabilizer with bearing cooling In force Ends no later than Feb 25, 2041 · From the USPTO record	In force	Ends no later than Feb 25, 2041	From the USPTO record

10 of 23 patents shown.

Pro members see all 23.

Pro members: see all 23 patents

Also on record, not counted in the 23: 3 patents in force now held by others. 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.

Export every term end as CSV · Pro

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 pending · 1 no status recorded

List them