Seismos, Inc.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Mar 2037
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 30, 2026The maintenance fee for Method of Logging of Natural Fractures During Drilling, Monitoring and Adjusting Drilling Operations and Optimizing Completion Designs (US 11,661,842) comes due Nov 30, 2026. Unpaid by Jun 1, 2027, it lapses early.
- 1 fee due Dec 13, 2026The maintenance fee for Monitoring and Targeted Re-Fracturing Design Based on Acoustic Fracture Measurements (US 11,674,389) comes due Dec 13, 2026. Unpaid by Jun 14, 2027, it lapses early.
- 2 fees due Mar 12 to 19, 2027 · next Mar 12
- 1 fee due Aug 27, 2027The maintenance fee for Method of Measuring Reservoir and Fracture Strains, Crosswell Fracture Proximity and Crosswell Interactions (US 11,913,330) comes due Aug 27, 2027. Unpaid by Feb 28, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted 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 11,015,436 | Method for Evaluating and Monitoring Formation Fracture Treatment Using Fluid Pressure Waves In force · Medium confidence | In force | Medium confidence | |
| US RE50,021 | Method for Evaluating and Monitoring Formation Fracture Treatment Using Fluid Pressure Waves In force · Low confidence | In force | Low confidence | |
| US RE50,568 | Method for evaluating and monitoring formation fracture treatment closure rates and pressures using fluid pressure waves In force · From the USPTO record | In force | From the USPTO record | |
| US 11,249,211 | Sand Pack and Gravel Pack Acoustic Evaluation Method and System In force · Medium confidence | In force | Medium confidence | |
| US 11,762,115 | Fracture Wave Depth, Borehole Bottom Condition, and Conductivity Estimation Method In force · Medium confidence | In force | Medium confidence | |
| US 11,608,740 | Determining Fracture Properties Using Injection and Step-Rate Analysis, Dynamic Injection Test Analysis, Extracting Pulse-Type Source Signals from Noisy Data, and Measuring Friction Parameters in a Well In force · Medium confidence | In force | Medium confidence | |
| US 11,340,367 | Fracture Wave Depth, Borehole Bottom Condition, and Conductivity Estimation Method In force · Medium confidence | In force | Medium confidence | |
| US 11,299,980 | Method for Fracture Activity Monitoring and Pressure Wave Resonance Analysis for Estimating Geophysical Parameters of Hydraulic Fractures Using Fracture Waves In force · Medium confidence | In force | Medium confidence | |
| US 11,753,923 | Using Pre-Fracturing Hydraulic Conductivity Measurements to Avoid Fracture Treatment Problems In force · Medium confidence | In force | Medium confidence | |
| US 11,674,389 | Monitoring and Targeted Re-Fracturing Design Based on Acoustic Fracture Measurements In force · High confidence | In force | High confidence |
Also on record, not counted in the 14: 2 surrendered on reissue. 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.
7 no status recorded