71 patents currently held
2 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 2028. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
28
Ending by 2030
Apr 2028
Next term end
25
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 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. 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 Oct 2028 · High confidence
Also notable
Ends Jul 2034 · High confidence
Also notable
Ends Jun 2032 · High confidence
Materials, Systems and Methods for Optoelectronic Devices
US 7,923,801
The most cited patent in this portfolio, cited by 592 later US patents, top 1% of utility patents granted in 2011 in our data. Protection runs to 2028.
Devices and Methods for High-Resolution Image and Video Capture
US 9,369,621
Cited by 252 later US patents, top 1% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. Protection runs to 2034.
Image Sensors Employing Sensitized Semiconductor Diodes
US 8,822,897
Cited by 53 later US patents, top 10% of utility patents granted in 2014 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2032.
Formerly held, still cited
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 Nov 21, 2026The maintenance fee for Materials, Systems and Methods for Optoelectronic Devices (US 10,297,703) comes due Nov 21, 2026. Unpaid by May 21, 2027, it lapses early.
- 1 fee due Jan 2, 2027The maintenance fee for Image Sensors with Electronic Shutter (US 10,341,571) comes due Jan 2, 2027. Unpaid by Jul 2, 2027, it lapses early.
- 1 fee due Mar 24, 2027The maintenance fee for Three-transistor active reset pixel (US 10,425,601) comes due Mar 24, 2027. Unpaid by Sep 24, 2027, it lapses early.
- 1 fee due May 24, 2027The maintenance fee for Materials, Systems and Methods for Optoelectronic Devices (US 9,196,781) comes due May 24, 2027. Unpaid by Nov 24, 2027, it lapses early.
- 4 fees due Jun 8 to 24, 2027 · next Jun 8
- 2 fees due Jul 7 to 14, 2027 · next Jul 7
- 1 fee due Aug 9, 2027The maintenance fee for Photodetectors and Photovoltaics Based on Semiconductor Nanocrystals (US 9,257,582) comes due Aug 9, 2027. Unpaid by Feb 9, 2028, it lapses early.
- 1 fee due Sep 22, 2027The maintenance fee for Image Sensors Employing Sensitized Semiconductor Diodes (US 9,293,487) comes due Sep 22, 2027. Unpaid by Mar 22, 2028, it lapses early.
- 1 fee due Nov 12, 2027The maintenance fee for Image sensor with electron and hole collection electrodes (US 10,652,486) comes due Nov 12, 2027. Unpaid by May 12, 2028, it lapses early.
Recent changes
- 1 term has ended since Aug 17, 2026
What they patent
The 5 largest of its 25 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Materials, Systems and Methods for Optoelectronic Devices | 26 in force | to Oct 2028 |
| Sensors and Systems for the Capture of Scenes and Events in Space and Time | 5 in force | to May 2036 |
| Image Sensors Employing Sensitized Semiconductor Diodes | 5 in force | to Jun 2032 |
| Photodetector Comprising a Pinned Photodiode That Is Formed by an Optically Sensitive Layer and a Silicon Diode | 3 in force | to Nov 2031 |
| Dark Current Reduction in Image Sensors via Dynamic Electrical Biasing | 3 in force | to Sep 2031 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,004,057 | Materials, Systems and Methods for Optoelectronic Devices In force · High confidence | In force | High confidence | |
| US 8,013,412 | Materials, Systems and Methods for Optoelectronic Devices In force · High confidence | In force | High confidence | |
| US 8,269,260 | Materials, Systems and Methods for Optoelectronic Devices In force · High confidence | In force | High confidence | |
| US 8,269,302 | Materials, Systems and Methods for Optoelectronic Devices In force · High confidence | In force | High confidence | |
| US 8,274,126 | Materials, Systems and Methods for Optoelectronic Devices In force · High confidence | In force | High confidence | |
| US 8,415,192 | Colloidal Nanoparticle Materials for Photodetectors and Photovoltaics In force · Medium confidence | In force | Medium confidence | |
| US 8,466,533 | Materials, Systems and Methods for Optoelectronic Devices In force · High confidence | In force | High confidence | |
| US 8,476,616 | Photodetectors and Photovoltaics Based on Semiconductor Nanocrystals In force · Medium confidence | In force | Medium confidence | |
| US 8,476,727 | Materials, Systems and Methods for Optoelectronic Devices In force · High confidence | In force | High confidence | |
| US 8,482,093 | Materials, Systems and Methods for Optoelectronic Devices In force · High confidence | In force | High confidence |
Also on record, not counted in the 71: 2 patents in force now held by others · 28 patents ended · 14 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.