Tendeka B.V.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
4
Ending by 2030
Dec 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 Dec 11, 2026The maintenance fee for Downhole packer and associated methods (US 10,316,610) comes due Dec 11, 2026. Unpaid by Jun 11, 2027, it lapses early.
- 3 fees due Feb 6 to 27, 2027 · next Feb 6
- 1 fee due Mar 29, 2027The maintenance fee for Connector seal (US 9,145,756) comes due Mar 29, 2027. Unpaid by Sep 29, 2027, it lapses early.
- 1 fee due Sep 30, 2027The maintenance fee for Flow control device (US 10,605,046) comes due Sep 30, 2027. Unpaid by Mar 31, 2028, it lapses early.
- 1 fee due Nov 12, 2027The maintenance fee for Flow control device and method (US 10,648,327) comes due Nov 12, 2027. Unpaid by May 12, 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 8,319,657 | System and method for wireless communication in a producing well system In force · From the USPTO record | In force | From the USPTO record | |
| US 9,732,578 | Downhole sealing assembly with swellable seal In force · From the USPTO record | In force | From the USPTO record | |
| US 8,258,975 | Communication system for communication with and remote activation of downhole tools and devices used in association with wells for production of hydrocarbons In force · From the USPTO record | In force | From the USPTO record | |
| US 8,169,854 | System and method for wireless data transmission In force · From the USPTO record | In force | From the USPTO record | |
| US 8,833,473 | Sealing assembly In force · From the USPTO record | In force | From the USPTO record | |
| US 8,910,945 | Seal assembly and method of forming a seal assembly In force · From the USPTO record | In force | From the USPTO record | |
| US 8,727,027 | Downhole seal In force · From the USPTO record | In force | From the USPTO record | |
| US 8,786,113 | Device and a method for downhole energy generation In force · From the USPTO record | In force | From the USPTO record | |
| US 9,145,756 | Connector seal In force · From the USPTO record | In force | From the USPTO record | |
| US 11,722,228 | Wireless Communication In force · High confidence | In force | High confidence |
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 no status recorded