9 patents currently held
289 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.
4 more records may belong here and await a decision; they are not counted.
The next term ends in Nov 2027. from the record
Of the 289 now held by other companies, 269 name InterDigital Patent Holdings Inc. as their current owner, and 20 more name another party. Each row says which.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
1
Ending by 2030
Nov 2027
Next term end
8
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
Notable
Ends Nov 2027 · High confidence
Also notable
Ends May 2031 · High confidence
Also notable
Ends Sep 2033 · High confidence
Method and Apparatus for Subcarrier and Antenna Selection in MIMO-OFDM System
US 8,270,512
Renewed at every maintenance window since the 2012 grant; no more fees are due before its term ends in 2027.
Method and Apparatus of Signaling and Procedure for Sequence Hopping Pattern Change During Handover
US 9,204,344
The largest patent family in this portfolio, 5 related applications, renewed at every maintenance window due so far. Protection runs to 2031.
Control Channel Transmission Method and Equipment
US 9,215,632
Granted 2015 and renewed at every maintenance window due so far. Protection runs to 2033.
Formerly held, still cited
Notable
Ends Jul 2031 · High confidence
The most cited patent in this portfolio, cited by 285 later US patents, top 5% of utility patents granted in 2013 in our data. Protection runs to 2031.
now held by InterDigital Patent Holdings, Inc.
Also notable
Ends Feb 2030 · High confidence
Cited by 174 later US patents, top 5% of utility patents granted in 2012 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2030.
now held by InterDigital Patent Holdings, Inc.
Also notable
Ends Nov 2029 · High confidence
Cited by 81 later US patents, top 10% of utility patents granted in 2011 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2029.
now held by InterDigital Patent Holdings, 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.
- 1 fee due Mar 8, 2027The maintenance fee for Location Update Processing Method and Device (US 9,131,340) comes due Mar 8, 2027. Unpaid by Sep 8, 2027, it lapses early.
- 2 fees due Jun 1 to 15, 2027 · next Jun 1
Recent changes
- 14 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 8 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Control Channel Transmission Method and Equipment | 2 in force | to Apr 2034 |
| Method and User Equipment for Discovering Device User | 1 in force | to Jun 2034 |
| Method and Device for Establishing Packet Data Network Connection | 1 in force | to Jan 2034 |
| Terminal Management Method and Apparatus | 1 in force | to Apr 2033 |
| Method and Apparatus for Bootstrapping Gateway in Device Management System | 1 in force | to Dec 2032 |
Patents held now
Soonest term end first.
Showing 1 to 9 of 9
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,270,512 | Method and Apparatus for Subcarrier and Antenna Selection in MIMO-OFDM System In force · High confidence | In force | High confidence | |
| US 9,204,344 | Method and Apparatus of Signaling and Procedure for Sequence Hopping Pattern Change During Handover In force · High confidence | In force | High confidence | |
| US 9,131,340 | Location Update Processing Method and Device In force · High confidence | In force | High confidence | |
| US 9,417,887 | Method and Apparatus for Bootstrapping Gateway in Device Management System In force · High confidence | In force | High confidence | |
| US 9,832,075 | Terminal Management Method and Apparatus In force · High confidence | In force | High confidence | |
| US 9,215,632 | Control Channel Transmission Method and Equipment In force · High confidence | In force | High confidence | |
| US 9,648,646 | Method and Device for Establishing Packet Data Network Connection In force · High confidence | In force | High confidence | |
| US 10,057,820 | Control Channel Transmission Method and Equipment In force · Medium confidence | In force | Medium confidence | |
| US 9,906,953 | Method and User Equipment for Discovering Device User In force · High confidence | In force | High confidence |
Also on record, not counted in the 9: 289 patents in force now held by others · 875 patents ended · 1 application pending · 400 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.