1 patent currently held
511 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 Nov 2037. from the record
Of the 511 now held by other companies, 510 name OKI Electric Industry Co. Ltd. as their current owner, and 1 more name another party. Each row says which.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Nov 2037
Next term end
1
Patent families
When these terms end
Held patents by the year their term ends
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
Only 1 of the currently held patents qualifies as notable.
Formerly held, still cited
Notable
Ends Aug 2029 · High confidence
The most cited patent in this portfolio, cited by 79 later US patents, top 10% of utility patents granted in 2011 in our data. Protection runs to 2029.
now held by OKI Electric Industry Co., Ltd.
Also notable
Ends Jul 2030 · High confidence
Cited by 48 later US patents, top 25% of utility patents granted in 2012 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2030.
now held by OKI Electric Industry Co., Ltd.
Also notable
Ends Oct 2031 · High confidence
The largest patent family in this portfolio, 10 related applications, renewed at 3 of 3 maintenance windows. Protection runs to 2031.
now held by OKI Electric Industry Co., Ltd.
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 Apr 22, 2027The maintenance fee for Image Forming Apparatus Reducing Media Surface Roughness Before Forming a Color Image Protected by Transparent Toner (US 10,452,004) comes due Apr 22, 2027. Unpaid by Oct 22, 2027, it lapses early.
Recent changes
- 18 terms have ended since Aug 16, 2026
Patents held now
Soonest term end first.
Showing 1 to 1 of 1
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,452,004 | Image Forming Apparatus Reducing Media Surface Roughness Before Forming a Color Image Protected by Transparent Toner In force · High confidence | In force | High confidence |
Also on record, not counted in the 1: 511 patents in force now held by others · 1,218 patents ended · 274 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.
1 patents carry no fee events. That is a gap in the record, not evidence of lapse, so status falls back to the computed term
8 terminal disclaimers are on file with no resolved reference. No cap is applied and none is guessed