Longleaf Technologies, LLC
13 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
Ending by 2030
Jan 2029
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 Nov 16, 2026The maintenance fee for Playing Binaural Sound Clips During an Electronic Communication (US 11,653,169) comes due Nov 16, 2026. Unpaid by May 17, 2027, it lapses early.
- 1 fee due Jan 2, 2027The maintenance fee for Hevc Encoding Device and Method for Determining Intra-Prediction Mode Using the Same (US 10,341,655) comes due Jan 2, 2027. Unpaid by Jul 2, 2027, it lapses early.
- 2 fees due Feb 15 to 20, 2027 · next Feb 15
- 1 fee due Mar 15, 2027The maintenance fee for Phase Shifter Using Substrate Integrated Waveguide (US 9,136,579) comes due Mar 15, 2027. Unpaid by Sep 15, 2027, it lapses early.
- 1 fee due Apr 22, 2027The maintenance fee for Method and Apparatus for Measurement of Information-Security-Controlling Status (US 10,452,852) comes due Apr 22, 2027. Unpaid by Oct 22, 2027, it lapses early.
- 1 fee due May 19, 2027The maintenance fee for Event Wizard Server and Methods for Use Therewith (US 10,482,408) comes due May 19, 2027. Unpaid by Nov 19, 2027, it lapses early.
- 3 fees due Jul 9 to 19, 2027 · next Jul 9
- 4 fees due Sep 3 to 26, 2027 · next Sep 3
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
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 8,654,058 | Apparatus and Method for Enhancing Image Contrast In force · High confidence | In force | High confidence | |
| US 10,055,760 | System and Method for Synchronizing Delivery of Promotional Material to Computing Devices In force · High confidence | In force | High confidence | |
| US 8,938,759 | Program Guide and Apparatus In force · High confidence | In force | High confidence | |
| US 8,428,621 | Location-Based Audio Service In force · High confidence | In force | High confidence | |
| US 12,169,481 | System and Method for Self-Expiring Data Content In force · High confidence | In force | High confidence | |
| US 9,136,579 | Phase Shifter Using Substrate Integrated Waveguide In force · High confidence | In force | High confidence | |
| US 10,664,878 | Data Capture for User Interaction with Promotional Materials In force · High confidence | In force | High confidence | |
| US 10,582,342 | Location Based Computerized System and Method Thereof In force · High confidence | In force | High confidence | |
| US 8,825,631 | System and Method for Improved Processing of an SQL Query Made Against a Relational Database In force · High confidence | In force | High confidence | |
| US 9,380,402 | Apparatus and Method for Controlling a Backbone Network for a Sensor Network In force · High confidence | In force | High confidence |
Also on record, not counted in the 54: 13 patents in force now held by others · 1 lapsed for an unpaid fee. 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.