21 patents currently held
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Sep 2034. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Sep 2034
Next term end
7
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 Dec 2034 · High confidence
Also notable
Ends Jun 2035 · High confidence
Also notable
Ends Dec 2034 · High confidence
Method and Apparatus for Controlling Soft Buffer for Tdd-Fdd Carrier Aggregation
US 10,128,986
Cited by 106 later US patents, top 5% of utility patents granted in 2018 in our data, and renewed at 2 of 3 maintenance windows. Protection runs to 2034.
Method and Apparatus for Transmitting HARQ Ack/Nack
US 9,853,795
The most cited patent in this portfolio, cited by 107 later US patents, top 5% of utility patents granted in 2017 in our data. Protection runs to 2035.
Method and Apparatus for Performing Activation/Deactivation of Serving Cell in Wireless Communication System Supporting Dual Connectivity
US 9,439,233
Cited by 54 later US patents, top 10% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. Protection runs to 2034.
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 Dec 25, 2026The maintenance fee for Apparatus and Method for Transmitting Device to Device Communication Channel in Wireless Communication System (US 10,334,644) comes due Dec 25, 2026. Unpaid by Jun 25, 2027, it lapses early.
- 2 fees due Jan 9 to 16, 2027 · next Jan 9
- 2 fees due Feb 20 to 27, 2027 · next Feb 20
- 2 fees due Oct 7 to 28, 2027 · next Oct 7
- 2 fees due Nov 5 to 12, 2027 · next Nov 5
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
What they patent
The 5 largest of its 7 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Method and Apparatus for Controlling Semi-Persistent Scheduling | 3 in force | to Aug 2037 |
| Method and Apparatus for Transmitting HARQ Ack/Nack | 3 in force | to Jun 2035 |
| Apparatus and Method for Transmitting Device to Device Communication Channel in Wireless Communication System | 3 in force | to Apr 2035 |
| Method and Apparatus of Controlling Periodic Csi Reporting | 3 in force | to Mar 2035 |
| Method and Apparatus for Controlling Soft Buffer for Tdd-Fdd Carrier Aggregation | 3 in force | to Dec 2034 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,028,328 | Method and Apparatus for Performing Activation/Deactivation of Serving Cell in Wireless Communication System Supporting Dual Connectivity held by SK Telecom Co., Ltd. and Innosky In force · High confidence | In force | High confidence | |
| US 10,397,975 | Method and Apparatus for Performing Activation/Deactivation of Serving Cell in Wireless Communication System Supporting Dual Connectivity held by SK Telecom Co., Ltd. and Innosky In force · High confidence | In force | High confidence | |
| US 9,768,918 | Method and Apparatus of Controlling for Uplink Scheduling and HARQ Timing held by SK Telecom Co., Ltd. and Innosky In force · High confidence | In force | High confidence | |
| US 10,389,492 | Method and Apparatus of Controlling for Uplink Scheduling and HARQ Timing held by SK Telecom Co., Ltd. and Innosky In force · High confidence | In force | High confidence | |
| US 10,615,926 | Method and Apparatus of Controlling for Uplink Scheduling and HARQ Timing In force · High confidence | In force | High confidence | |
| US 9,800,313 | Method and Apparatus of Controlling Periodic Csi Reporting held by SK Telecom Co., Ltd. and Innosky In force · High confidence | In force | High confidence | |
| US 10,348,385 | Method and Apparatus of Controlling Periodic Csi Reporting held by SK Telecom Co., Ltd. and Innosky In force · High confidence | In force | High confidence | |
| US 9,439,233 | Method and Apparatus for Performing Activation/Deactivation of Serving Cell in Wireless Communication System Supporting Dual Connectivity held by SK Telecom Co., Ltd. and Innosky In force · High confidence | In force | High confidence | |
| US 10,128,986 | Method and Apparatus for Controlling Soft Buffer for Tdd-Fdd Carrier Aggregation held by SK Telecom Co., Ltd. and Innosky In force · High confidence | In force | High confidence | |
| US 10,637,614 | Method and Apparatus for Controlling Soft Buffer for Tdd-Fdd Carrier Aggregation In force · High confidence | In force | High confidence |
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.