2 patents currently held
104 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 2033. from the record
Of the 104 now held by other companies, 73 name Mie Fujitsu Semiconductor Limited as their current owner, and 31 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 2033
Next term end
2
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 2 of the currently held patents qualify as notable.
Notable
Ends Dec 2033 · High confidence
Also notable
Ends Nov 2033 · High confidence
Integrated Circuit Process and Bias Monitors and Related Methods
US 9,112,484
Granted 2015 and renewed at every maintenance window due so far. Protection runs to 2033.
Slew Based Process and Bias Monitors and Related Methods
US 9,093,997
Granted 2015 and renewed at every maintenance window due so far. Protection runs to 2033.
Formerly held, still cited
Notable
Ends May 2031 · High confidence
The most cited patent in this portfolio, cited by 267 later US patents, top 5% of utility patents granted in 2012 in our data. Protection runs to 2031.
now held by Mie Fujitsu Semiconductor Limited
Also notable
Ends Dec 2031 · High confidence
Cited by 130 later US patents, top 5% of utility patents granted in 2014 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2031.
now held by Mie Fujitsu Semiconductor Limited
Also notable
Ends Dec 2030 · High confidence
Cited by 116 later US patents, top 5% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2030.
now held by Mie Fujitsu Semiconductor Limited
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 Jan 28, 2027The maintenance fee for Slew Based Process and Bias Monitors and Related Methods (US 9,093,997) comes due Jan 28, 2027. Unpaid by Jul 28, 2027, it lapses early.
- 1 fee due Feb 18, 2027The maintenance fee for Integrated Circuit Process and Bias Monitors and Related Methods (US 9,112,484) comes due Feb 18, 2027. Unpaid by Aug 18, 2027, it lapses early.
Recent changes
- 1 term has ended since Aug 16, 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.
| Integrated Circuit Process and Bias Monitors and Related Methods | 1 in force | to Dec 2033 |
| Slew Based Process and Bias Monitors and Related Methods | 1 in force | to Nov 2033 |
Patents held now
Soonest term end first.
Showing 1 to 2 of 2
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 9,093,997 | Slew Based Process and Bias Monitors and Related Methods In force · High confidence | In force | High confidence | |
| US 9,112,484 | Integrated Circuit Process and Bias Monitors and Related Methods In force · High confidence | In force | High confidence |
Also on record, not counted in the 2: 104 patents in force now held by others · 67 patents ended · 9 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.
4 terminal disclaimers are on file with no resolved reference. No cap is applied and none is guessed