Digicourse, Inc.

36 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

Jun 2030

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 6, 2027
The maintenance fee for Acoustic ranging apparatus and methods (US 10,371,845) comes due Feb 6, 2027. Unpaid by Aug 6, 2027, it lapses early.
1 fee due Mar 1, 2027
The maintenance fee for Power savings mode for ocean bottom seismic data acquisition systems (US 9,121,969) comes due Mar 1, 2027. Unpaid by Sep 1, 2027, it lapses early.
3 fees due May 12 to 26, 2027 · next May 12
1 fee due Jul 23, 2027
The maintenance fee for Bi-Directional Foil System for Towed Marine Cable Array (US 11,878,771) comes due Jul 23, 2027. Unpaid by Jan 24, 2028, it lapses early.
1 fee due Aug 13, 2027
The maintenance fee for Acoustic ranging apparatus and methods (US 11,899,152) comes due Aug 13, 2027. Unpaid by Feb 14, 2028, it lapses early.
2 fees due Sep 22 to 26, 2027 · next Sep 22

Which patents, and when each one lapses · Pro

Recent changes

1 of the patents on this record was granted 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 8,120,507	Two-Tier Streamer Communication System In force Term ends Jun 17, 2030 · High confidence	In force	Term ends Jun 17, 2030	High confidence
US 8,223,585	Method and system for controlling streamers In force Term ends Oct 16, 2030 · From the USPTO record	In force	Term ends Oct 16, 2030	From the USPTO record
US 8,374,053	Seismic streamer shape estimation In force Term ends Apr 19, 2031 · From the USPTO record	In force	Term ends Apr 19, 2031	From the USPTO record
US 8,730,766	Seismic system with ghost and motion rejection In force Term ends Jan 7, 2032 · From the USPTO record	In force	Term ends Jan 7, 2032	From the USPTO record
US 9,784,860	Seismic system with ghost and motion rejection In force Term ends Mar 19, 2032 · From the USPTO record	In force	Term ends Mar 19, 2032	From the USPTO record
US 9,294,011	Method and apparatus for sensing underwater signals In force Term ends Aug 16, 2032 · From the USPTO record	In force	Term ends Aug 16, 2032	From the USPTO record
US 10,254,422	Steerable Fairing String In force (reinstated) Ends no later than Oct 26, 2032 · Low confidence	In force (reinstated)	Ends no later than Oct 26, 2032	Low confidence
US 9,632,195	Steerable fairing string In force Term ends Jan 13, 2033 · From the USPTO record	In force	Term ends Jan 13, 2033	From the USPTO record
US 11,181,655	Steerable fairing string In force Term ends Sep 15, 2033 · From the USPTO record	In force	Term ends Sep 15, 2033	From the USPTO record
US 9,121,969	Power savings mode for ocean bottom seismic data acquisition systems In force (reinstated) Term ends Mar 11, 2034 · From the USPTO record	In force (reinstated)	Term ends Mar 11, 2034	From the USPTO record

10 of 36 patents shown.

Pro members see all 36.

Pro members: see all 36 patents

Also on record, not counted in the 36: 6 lapsed for an unpaid fee · 43 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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