Spreadtrum Communications Inc.
4 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.
Recorded under 4 name spellings.
19
Ending by 2030
Aug 2027
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
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 Feb 18, 2027The maintenance fee for Detection and mitigation of interference based on interference location (US 9,112,569) comes due Feb 18, 2027. Unpaid by Aug 18, 2027, it lapses early.
- 2 fees due Mar 10 to 22, 2027 · next Mar 10
- 2 fees due May 12 to 17, 2027 · next May 12
- 1 fee due Oct 26, 2027The maintenance fee for Method and apparatus for transmitter optimization based on allocated transmission band (US 9,326,288) comes due Oct 26, 2027. Unpaid by Apr 26, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 17, 2026
- 2 terms have ended since Aug 17, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,623,610 | Method for determining QPSK modulation sequence of a downlink synchronization code In force · From the USPTO record | In force | From the USPTO record | |
| US 7,627,027 | Method for measuring locking time and frequency error in RF receiver In force · From the USPTO record | In force | From the USPTO record | |
| US 7,664,113 | Apparatus and methods for system multiplexing and program element identification In force · From the USPTO record | In force | From the USPTO record | |
| US 7,693,209 | Method for carrier frequency offset fine estimation in TD-SCDMA system In force · From the USPTO record | In force | From the USPTO record | |
| US 7,626,965 | Joint cell detection method in TD-SCDMA system In force · From the USPTO record | In force | From the USPTO record | |
| US 7,676,211 | Reconfigurable baseband filter In force · From the USPTO record | In force | From the USPTO record | |
| US 7,725,090 | Method and apparatus for automatic frequency correction In force · From the USPTO record | In force | From the USPTO record | |
| US 7,853,258 | Methods for air interface message transfer in fast call setup processes In force · From the USPTO record | In force | From the USPTO record | |
| US 7,711,341 | Multimode receiver control method and apparatus In force · From the USPTO record | In force | From the USPTO record | |
| US 7,853,259 | Methods for air interface message transfer in fast call setup processes In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 44: 4 patents in force now held by others · 2 lapsed for an unpaid fee · 18 ended at full term. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
14 no status recorded