The Patent Finder

Emcon Technologies LLC

7 patents currently held · Updated Nov 14, 2026
6 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.

Recorded as renamed to Faurecia Emissions Control Technologies, USA, LLC (2011)

7
Ending by 2030
Nov 2026
Next term end

When these terms end

Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045

Fee deadlines

No maintenance fee falls due on this company's record before Nov 14, 2027.

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.

Showing 1 to 7 of 7

PatentTitleStatus Expires Confidence
US 7,401,592Hybrid Exhaust Valve Assembly
In force
 · High confidence
In forceHigh confidence
US 7,465,331Device for Cleaning Vehicular Exhaust Gas
In force
 · High confidence
In forceHigh confidence
US 7,536,990Hybrid Exhaust Valve Assembly
In force
 · High confidence
In forceHigh confidence
US 7,584,938Side Loaded Valve Assembly
In force
 · High confidence
In forceHigh confidence
US 7,748,404Multi-Purpose Exhaust Valve Spring
In force
 · High confidence
In forceHigh confidence
US 7,628,250Passive valve assembly for vehicle exhaust system
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,201,401Passive valve assembly with negative start angle
In force
 · From the USPTO record
In forceFrom the USPTO record
Also on record, not counted in the 7: 6 patents in force now held by others · 31 lapsed for an unpaid fee · 6 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.
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited