Skystream LLC

11 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

Jul 2041

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 Dec 13, 2026
The maintenance fee for Enhanced Ldacs System Having Cloud-Based Management and Associated Methods (US 11,677,459) comes due Dec 13, 2026. Unpaid by Jun 14, 2027, it lapses early.
2 fees due May 14, 2027
2 fees due Jul 16, 2027
1 fee due Aug 20, 2027
The maintenance fee for Enhanced Ldacs System Having Roaming Agreements and Associated Methods (US 11,909,501) comes due Aug 20, 2027. Unpaid by Feb 22, 2028, 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.

Patent	Title	Status	Expires	Confidence
US 11,424,817	Enhanced Ldacs System Having Mesh Network Topology and Associated Methods In force Term ends Jul 3, 2041 · High confidence	In force	Term ends Jul 3, 2041	High confidence
US 11,611,390	Enhanced Ldacs System Having Different User Classes and Associated Methods In force Term ends Jul 3, 2041 · High confidence	In force	Term ends Jul 3, 2041	High confidence
US 11,817,935	Automatic Dependent Surveillance-Broadcast (ADS-B) Device Having Coarse and Fine Accuracy Flight Position Data and Associated Methods In force Term ends Jul 3, 2041 · High confidence	In force	Term ends Jul 3, 2041	High confidence
US 11,876,597	Enhanced Ldacs System Combined with Cellular Telephone Ground Stations and Associated Methods In force Term ends Jul 7, 2041 · High confidence	In force	Term ends Jul 7, 2041	High confidence
US 11,677,459	Enhanced Ldacs System Having Cloud-Based Management and Associated Methods In force Term ends Sep 9, 2041 · High confidence	In force	Term ends Sep 9, 2041	High confidence
US 11,817,888	Enhanced Ldacs System Having LTE Security Features and Associated Methods In force Term ends Oct 8, 2041 · High confidence	In force	Term ends Oct 8, 2041	High confidence
US 11,909,501	Enhanced Ldacs System Having Roaming Agreements and Associated Methods In force Term ends Nov 16, 2041 · High confidence	In force	Term ends Nov 16, 2041	High confidence
US 11,637,627	Enhanced Ldacs System Having Ldacs Underlay and Overlay Networks and Associated Methods In force Term ends Nov 23, 2041 · High confidence	In force	Term ends Nov 23, 2041	High confidence
US 11,876,596	Enhanced Ldacs System Having Channel Aggregation and Associated Methods In force Term ends May 24, 2042 · High confidence	In force	Term ends May 24, 2042	High confidence
US 12,399,274	Enhanced LDACS that uses doppler shifts in carrier signals for positioning and navigation In force Term ends Aug 16, 2042 · From the USPTO record	In force	Term ends Aug 16, 2042	From the USPTO record

10 of 11 patents shown.

Pro members see all 11.

Pro members: see all 11 patents

Also on record, not counted in the 11: 9 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

Every application published under this name has become a patent.