616 patents currently held
3 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.
1 more record may belong here and awaits a decision; it is not counted.
The next term ends in Nov 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
82
Ending by 2030
Nov 2026
Next term end
570
Patent families
When these terms end
Held patents by the year their term ends
notable patents
fee due within 90 days
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. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Apr 2042 · High confidence
Also notable
Ends Oct 2028 · High confidence
Also notable
Ends Sep 2036 · High confidence
Touch Event Processing Circuit
US 11,620,023
The newest of the three, granted 2023. It anchors the portfolio to 2042, later than anything else here.
Mixed-Voltage I/O Buffer
US 8,212,590
Renewed at every maintenance window since the 2012 grant; no more fees are due before its term ends in 2028.
Methods of Fabricating an Image Sensor
US 9,917,134
Granted 2018 and renewed at every maintenance window due so far. Protection runs to 2036.
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.
- 2 fees due Nov 14 to 21, 2026 · next Nov 14
- 7 fees due Dec 2 to 27, 2026 · next Dec 2
- 6 fees due Jan 2 to 25, 2027 · next Jan 2
- 8 fees due Feb 6 to 25, 2027 · next Feb 6
- 9 fees due Mar 1 to 29, 2027 · next Mar 1
- 9 fees due Apr 10 to 29, 2027 · next Apr 10
- 10 fees due May 5 to 19, 2027 · next May 5
- 9 fees due Jun 10 to 30, 2027 · next Jun 10
- 9 fees due Jul 5 to 30, 2027 · next Jul 5
- 8 fees due Aug 4 to 27, 2027 · next Aug 4
- 9 fees due Sep 3 to 30, 2027 · next Sep 3
- 9 fees due Oct 9 to 30, 2027 · next Oct 9
- 8 fees due Nov 3 to 12, 2027 · next Nov 3
Recent changes
- 8 of the patents on this record were granted since Aug 16, 2026
- 10 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 570 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Liquid Crystal on Silicon (LCOS) Display Driving System and the Method Thereof | 10 in force | to Mar 2031 |
| Recognition System and SRAM Cell Thereof | 3 in force | to Oct 2042 |
| Touch Event Processing Circuit | 3 in force | to Jun 2042 |
| Circuit for Performing Display Driving Function and Fingerprint and Touch Detecting Function | 3 in force | to Dec 2040 |
| Reset Circuit for Power-On and Power-Off | 3 in force | to Aug 2030 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,375,670 | Digital-To-Analog Converter In force · High confidence | In force | High confidence | |
| US 7,511,650 | Digital to Analog Converter In force · High confidence | In force | High confidence | |
| US 7,456,813 | Liquid Crystal Display of Improving Display Color Contrast Effect and Related Method In force · High confidence | In force | High confidence | |
| US 7,382,164 | Glitch Suppressing Apparatus In force · High confidence | In force | High confidence | |
| US 7,858,438 | Semiconductor Device, Chip Package and Method of Fabricating the Same In force · High confidence | In force | High confidence | |
| US 7,708,419 | Ambient Light System and Method Thereof In force · High confidence | In force | High confidence | |
| US 7,501,862 | Comparator with Low Offset Voltage In force · High confidence | In force | High confidence | |
| US 7,598,894 | Source Driver and Digital-To-Analog Converter Thereof In force · High confidence | In force | High confidence | |
| US 7,764,255 | Liquid Crystal on Silicon (LCOS) Display Driving System and the Method Thereof In force · High confidence | In force | High confidence | |
| US 7,746,328 | Display Driving Circuit and a Display Apparatus Using the Display Driving Circuit and the Method Thereof In force · High confidence | In force | High confidence |
Also on record, not counted in the 616: 3 patents in force now held by others · 456 patents ended · 38 applications pending · 298 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.
Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.