345 patents currently held
31 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.
3 more records may belong here and await a decision; they are not counted.
The next term ends in Dec 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
127
Ending by 2030
Dec 2026
Next term end
299
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 May 2029 · High confidence
Also notable
Ends May 2032 · High confidence
Also notable
Ends Jan 2033 · High confidence
Display Apparatus with Optical Cavities
US 7,876,489
The most cited patent in this portfolio, cited by 291 later US patents, top 5% of utility patents granted in 2011 in our data. Protection runs to 2029.
Apparatus and Methods for Envelope Tracking Calibration
US 8,989,682
Cited by 238 later US patents, top 5% of utility patents granted in 2015 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2032.
Apparatus and Methods for Voltage Converters
US 8,786,371
Cited by 121 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 2033.
Formerly held, still cited
Notable
Ends Jun 2028 · High confidence
Cited by 112 later US patents, top 10% of utility patents granted in 2009 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2028.
now held by Sony Mobile Communications Inc.
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.
- 5 fees due Nov 19 to 26, 2026 · next Nov 19
- 2 fees due Dec 9 to 18, 2026 · next Dec 9
- 2 fees due Jan 2 to 7, 2027 · next Jan 2
- 8 fees due Feb 4 to 25, 2027 · next Feb 4
- 2 fees due Mar 3 to 29, 2027 · next Mar 3
- 8 fees due Apr 13 to 29, 2027 · next Apr 13
- 12 fees due May 3 to 26, 2027 · next May 3
- 9 fees due Jun 1 to 30, 2027 · next Jun 1
- 7 fees due Jul 5 to 28, 2027 · next Jul 5
- 8 fees due Aug 2 to 25, 2027 · next Aug 2
- 3 fees due Sep 22 to 30, 2027 · next Sep 22
- 3 fees due Oct 5 to 26, 2027 · next Oct 5
- 4 fees due Nov 3 to 10, 2027 · next Nov 3
Recent changes
- 15 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 299 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Display Methods and Apparatus | 7 in force | to May 2029 |
| Apparatus and Methods for Voltage Converters | 4 in force | to Jan 2033 |
| Microspeaker with Piezoelectric, Metal and Dielectric Membrane | 3 in force | to Aug 2033 |
| Envelope Tracking System for MIMO | 3 in force | to Jun 2032 |
| Apparatus and Methods for Envelope Tracking Calibration | 3 in force | to May 2032 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,068,001 | Saw Filter Featuring Impedance Transformation In force · High confidence | In force | High confidence | |
| US 7,527,998 | Method of Manufacturing MEMS Devices Providing Air Gap Control In force · High confidence | In force | High confidence | |
| US 7,471,930 | High Frequency Module In force · High confidence | In force | High confidence | |
| US 7,821,357 | Filter Assembly Comprising Two Bulk Wave Resonators In force · High confidence | In force | High confidence | |
| US 7,532,385 | Optical Interference Display Panel and Manufacturing Method Thereof In force · High confidence | In force | High confidence | |
| US 7,412,210 | High Frequency Module In force · High confidence | In force | High confidence | |
| US 7,609,132 | Hybrid Resonant Structure In force · High confidence | In force | High confidence | |
| US 7,693,485 | Bluetooth Polling with Fewer Poll Packets In force · High confidence | In force | High confidence | |
| US 8,004,322 | Synchronization Scheme with Adaptive Reference Frequency Correction In force · High confidence | In force | High confidence | |
| US 8,411,556 | Method for Optimized Reference Signal Downlink Transmission in a Wireless Communication System In force · High confidence | In force | High confidence |
Also on record, not counted in the 345: 31 patents in force now held by others · 1,270 patents ended · 758 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.