1 patent currently held
10 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 Apr 2029. from the record
Of the 10 now held by other companies, 10 name Signify North America Corporation as their current owner. Each row says so.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
1
Ending by 2030
Apr 2029
Next term end
1
Patent families
When these terms end
Held patents by the year their term ends
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 1 of the currently held patents qualifies as notable.
Formerly held, still cited
Notable
Ends Oct 2027 · High confidence
The most cited patent in this portfolio, cited by 152 later US patents, top 5% of utility patents granted in 2010 in our data. Protection runs to 2027.
now held by Signify North America Corporation
Also notable
Ends Dec 2026 · High confidence
Renewed at every maintenance window since the 2009 grant; no more fees are due before its term ends in 2026.
now held by Signify North America Corporation
Also notable
Ends Jul 2029 · High confidence
Renewed at every maintenance window since the 2011 grant; no more fees are due before its term ends in 2029.
now held by Signify North America Corporation
Fee deadlines
No maintenance fee falls due on this company's record before Nov 10, 2027.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
Patents held now
Soonest term end first.
Showing 1 to 1 of 1
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,813,068 | Degauss Control for Magnetic Disk-Drive Preamplifier In force · High confidence | In force | High confidence |
Also on record, not counted in the 1: 10 patents in force now held by others · 235 patents ended · 5 applications abandoned. 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.
15 terminal disclaimers are on file with no resolved reference. No cap is applied and none is guessed
4 computed term dates come from a chain with an unresolved parent. A continuity parent has not yet been fetched from USPTO's records. The term is dated from this application's own claim; no earlier date is assumed until the parent is resolved.