Sigmatel, Inc.
28 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 7 name spellings.
25
Ending by 2030
Nov 2026
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
Fee deadlines
No maintenance fee falls due on this company's record before Nov 14, 2027.
Recent changes
- 5 terms have ended since Aug 16, 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 9,015,375 | Buffer controller, codec and methods for use therewith In force · High confidence | In force | High confidence | |
| US 7,631,163 | Fast Virtual to Physical Memory Mapping In force · High confidence | In force | High confidence | |
| US 7,508,686 | System and Method for Configuring Direct Current Converter In force · High confidence | In force | High confidence | |
| US 7,555,591 | Method and System of Memory Management In force · High confidence | In force | High confidence | |
| US 7,394,987 | Programmable Infrared Data Processor In force · High confidence | In force | High confidence | |
| US 8,635,261 | Decimation Filter In force · High confidence | In force | High confidence | |
| US 7,629,709 | Regulation of a DC to DC Converter In force · High confidence | In force | High confidence | |
| US 7,689,807 | Mass Storage Device, Mass Storage Controller and Methods for Use Therewith In force · High confidence | In force | High confidence | |
| US 7,720,456 | Adjust Switching Rate of a Power Supply to Mitigate Interference In force · High confidence | In force | High confidence | |
| US 7,518,661 | System and Method of Audio Detection In force · High confidence | In force | High confidence |
Also on record, not counted in the 26: 28 patents in force now held by others · 101 lapsed for an unpaid fee · 134 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.
12 abandoned