The Patent Finder
EU

Enecsys UK Limited

First filing 2007
OverviewNotableFeesChangesFamiliesPatent listSources & methods

2 patents currently held

30 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 May 2034. from the record

Of the 30 now held by other companies, 30 name Tesla Inc. as their current owner. Each row says so.

Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
May 2034
Next term end
2
Patent families

When these terms end

Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
notable patents all others Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 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
Only 2 of the currently held patents qualify as notable.

Formerly held, still cited

Notable
Cited by 336 later US patents, top 1% of utility patents granted in 2014 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2027. A terminal disclaimer caps this term to an earlier patent's.
now held by Tesla, Inc.
Ends Jan 2027 · High confidence
Also notable
Cited by 349 later US patents, top 1% of utility patents granted in 2012 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2028.
now held by Tesla, Inc.
Ends Dec 2028 · High confidence
Also notable
Cited by 278 later US patents, top 1% of utility patents granted in 2015 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2031. A terminal disclaimer is on file and its reference is not resolved, so no cap is applied and the date may move earlier, never later.
now held by Tesla, Inc.
Ends no later than Sep 2031 · Medium confidence

Fee deadlines

No maintenance fee falls due on this company's record before Nov 10, 2027.

Recent changes

  • 1 term has ended since Aug 17, 2026

What they patent

Grouped by real patent family, largest first, labeled by the earliest filing in each. No technology classification is inferred from titles.

Patents held now

Soonest term end first.

Showing 1 to 2 of 2

PatentTitleStatusExpiresConfidence
US 9,502,902System, Method and Apparatus for Generating Layout of Devices in Solar Installations
In force
 · High confidence
In forceHigh confidence
US 9,882,507Power Factor Adjustment in Multi-Phase Power System
In force
 · High confidence
In forceHigh confidence
Also on record, not counted in the 2: 30 patents in force now held by others · 4 patents ended · 2 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.
3 terminal disclaimers are on file with no resolved reference. No cap is applied and none is guessed
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited