20 patents currently held

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.

The next term ends in Mar 2041. from the record

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Mar 2041

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

2026202720282029203020312032203320342035203620372038203920402041 2042 2043 20442045

notable patents all others Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know

Notable: the highest-ranked patents in this portfolio by citations and family size.

Notable patents

Ranked by citations and family size, against patents of the same kind granted the same year. How we rank

Notable

Intelligent Railroad At-Grade Crossings US 11,623,675

Cited by 8 later US patents, top 10% of utility patents granted in 2023 in our data. Protection runs to 2042.

Ends Oct 2042 · High confidence Also notable

Road Element Sensors and Identifiers US 11,138,873

The most cited patent in this portfolio, cited by 12 later US patents, top 25% of utility patents granted in 2021 in our data. Protection runs to 2041.

Ends Mar 2041 · High confidence Also notable

Data Consumable for Intelligent Transport System US 12,705,980

Granted 2026. Too new for citation comparison; protection runs to 2042. A terminal disclaimer caps this term to an earlier patent's.

Ends Apr 2042 · High confidence

Formerly held, still cited

Notable

Model Adaptation for Autonomous Trucking in Right of Way US 11,594,133

Cited by 8 later US patents, top 10% of utility patents granted in 2023 in our data. Protection runs to 2042.

now held by Chasm SPV LLC

Ends Jul 2042 · High confidence

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 Sep 26, 2027
The maintenance fee for Dynamic Access and Egress of Railroad Right of Way (US 11,941,980) comes due Sep 26, 2027. Unpaid by Mar 27, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

2 of the patents on this record were granted since Aug 16, 2026

What they patent

The 5 largest of its 13 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Intelligent Railroad At-Grade Crossings	3 in force	to Oct 2042
Road Element Sensors and Identifiers	3 in force	to Mar 2041
Visual Cue System for Roadways	2 in force	to Jan 2043
Dynamic Access and Egress of Railroad Right of Way	2 in force	to Nov 2042
Data Consumable for Intelligent Transport System	2 in force	to Oct 2042

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 11,138,873	Road Element Sensors and Identifiers In force Term ends Mar 23, 2041 · High confidence	In force	Term ends Mar 23, 2041	High confidence
US 11,610,480	Road Element Sensors and Identifiers In force Term ends Mar 23, 2041 · High confidence	In force	Term ends Mar 23, 2041	High confidence
US 12,361,822	Road Element Sensors and Identifiers In force Term ends Mar 23, 2041 · High confidence	In force	Term ends Mar 23, 2041	High confidence
US 12,705,980	Data Consumable for Intelligent Transport System In force Term ends Apr 24, 2042 · High confidence	In force	Term ends Apr 24, 2042	High confidence
US 12,112,626	Signal Head Processing System In force Term ends Sep 11, 2042 · High confidence	In force	Term ends Sep 11, 2042	High confidence
US 12,002,357	Data Consumable for Intelligent Transport System In force Term ends Oct 7, 2042 · High confidence	In force	Term ends Oct 7, 2042	High confidence
US 11,623,675	Intelligent Railroad At-Grade Crossings In force Term ends Oct 19, 2042 · High confidence	In force	Term ends Oct 19, 2042	High confidence
US 11,999,399	Intelligent Railroad At-Grade Crossings In force Term ends Oct 19, 2042 · High confidence	In force	Term ends Oct 19, 2042	High confidence
US 12,428,044	Intelligent Railroad At-Grade Crossings In force Term ends Oct 19, 2042 · Low confidence	In force	Term ends Oct 19, 2042	Low confidence
US 11,941,980	Dynamic Access and Egress of Railroad Right of Way In force Term ends Nov 3, 2042 · High confidence	In force	Term ends Nov 3, 2042	High confidence

10 of 20 patents shown.

Pro members see all 20.

Pro members: see all 20 patents

Also on record, not counted in the 20: 2 patents in force now held by others · 8 applications pending. List them

Sources and methods

Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built

Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

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