Openfield
1 more in force is now held by another company
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Jun 2034
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.
- 2 fees due Nov 21 to 23, 2026 · next Nov 21
- 1 fee due May 12, 2027The maintenance fee for Downhole acoustic transducer, downhole probe and tool comprising such a transducer (US 10,472,951) comes due May 12, 2027. Unpaid by Nov 12, 2027, it lapses early.
- 1 fee due Jul 7, 2027The maintenance fee for Downhole fluid properties optical analysis probe having a removable optical tip (US 10,527,751) comes due Jul 7, 2027. Unpaid by Jan 7, 2028, it lapses early.
- 1 fee due Aug 27, 2027The maintenance fee for Production logging tool and downhole fluid analysis sensors vertical deploying method (US 11,913,292) 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 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 9,777,555 | Predictive flow assurance assessment method and system In force · From the USPTO record | In force | From the USPTO record | |
| US 9,863,244 | Downhole fluid properties analysis probe, tool and method In force · From the USPTO record | In force | From the USPTO record | |
| US 9,651,710 | Downhole fluid properties analysis device and tools comprising such a device In force · From the USPTO record | In force | From the USPTO record | |
| US 10,527,751 | Downhole fluid properties optical analysis probe having a removable optical tip In force · From the USPTO record | In force | From the USPTO record | |
| US 11,629,588 | Method and Device for Depth Positioning Downhole Tool and Associated Measurement Log of a Hydrocarbon Well In force · High confidence | In force | High confidence | |
| US 10,294,771 | Production logging tool and downhole fluid analysis probes deploying method, in particular for deviated and horizontal hydrocarbon well In force · From the USPTO record | In force | From the USPTO record | |
| US 10,472,951 | Downhole acoustic transducer, downhole probe and tool comprising such a transducer In force · From the USPTO record | In force | From the USPTO record | |
| US 10,761,238 | Downhole optical chemical compound monitoring device, bottom hole assembly and measurements-while-drilling tool comprising the same, and method of optically monitoring chemical compound downhole during drilling In force · From the USPTO record | In force | From the USPTO record | |
| US 10,774,639 | Downhole local solid particles counting probe, production logging tool comprising the same and sand entry investigation method for hydrocarbon wells In force · From the USPTO record | In force | From the USPTO record | |
| US 11,131,570 | Mini-spinner flowmeter and downhole tool comprising an array of mini-spinner flowmeters for operation in hydrocarbon well In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 14: 1 patent in force now held by others. 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.
1 pending