50 patents currently held
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.
2 more records may belong here and await a decision; they are not counted.
The next term ends in Mar 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
29
Ending by 2030
Mar 2027
Next term end
43
Patent families
When these terms end
Held patents by the year their term ends
notable patents
all others
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
Notable: the highest-ranked patents in this portfolio by citations and family size.
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Apr 2027 · High confidence
Also notable
Ends Sep 2028 · Medium confidence
Also notable
Ends Aug 2028 · High confidence
Monitoring Downhole Conditions with Drill String Distributed Measurement System
US 8,636,060
Cited by 78 later US patents, top 10% of utility patents granted in 2014 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2027.
System and Method of Monitoring Flow in a Wellbore
US 8,172,007
Cited by 46 later US patents, top 25% of utility patents granted in 2012 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2028.
Communication Connections for Wired Drill Pipe Joints
US 8,371,396
Renewed at every maintenance window since the 2013 grant; no more fees are due before its term ends in 2028.
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 Apr 13, 2027The maintenance fee for Systems and Methods for Detecting Drillstring Loads (US 9,157,313) comes due Apr 13, 2027. Unpaid by Oct 13, 2027, it lapses early.
- 1 fee due Jul 26, 2027The maintenance fee for System and Method for Steering a Relief Well (US 9,243,489) comes due Jul 26, 2027. Unpaid by Jan 26, 2028, it lapses early.
- 1 fee due Aug 20, 2027The maintenance fee for Transmission Line Tension Anchor for Drill String Components (US 11,905,762) comes due Aug 20, 2027. Unpaid by Feb 22, 2028, it lapses early.
- 1 fee due Sep 1, 2027The maintenance fee for System and Method for Determining Fault Location (US 9,273,550) comes due Sep 1, 2027. Unpaid by Mar 1, 2028, it lapses early.
Recent changes
- 2 terms have ended since Aug 17, 2026
What they patent
The 5 largest of its 43 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Transmission Line Retention Sleeve for Drill String Components | 4 in force | to Mar 2041 |
| Pipe Joint Having Coupled Adapter | 3 in force | to Oct 2034 |
| Methods for Clock Synchronization in Wellbore Instruments | 2 in force | to Oct 2030 |
| Topology Maintenance and Discovery Facility for Downhole Networks | 2 in force | to Oct 2028 |
| Wireless Data Transmission Systems, and Related Devices and Methods | 1 in force | to Dec 2041 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,948,395 | Downhole Transmission System Comprising a Coaxial Capacitor In force · High confidence | In force | High confidence | |
| US 7,852,232 | Downhole Tool Adapted for Telemetry In force · High confidence | In force | High confidence | |
| US 8,636,060 | Monitoring Downhole Conditions with Drill String Distributed Measurement System In force · High confidence | In force | High confidence | |
| US 7,806,191 | Communication Connections for Wired Drill Pipe Joints for Providing Multiple Communication Paths In force · High confidence | In force | High confidence | |
| US 7,733,240 | System for Configuring Hardware in a Downhole Tool In force · High confidence | In force | High confidence | |
| US 8,344,905 | Method and Conduit for Transmitting Signals In force · Medium confidence | In force | Medium confidence | |
| US 7,570,175 | Node Discovery in Physically Segmented Logical Token Network In force · High confidence | In force | High confidence | |
| US 7,649,473 | Physically Segmented Logical Token Network In force · High confidence | In force | High confidence | |
| US 7,605,715 | Electromagnetic Wellbore Telemetry System for Tubular Strings In force · High confidence | In force | High confidence | |
| US 8,371,396 | Communication Connections for Wired Drill Pipe Joints In force · High confidence | In force | High confidence |
Also on record, not counted in the 50: 1 patent in force now held by others · 72 patents ended · 35 applications abandoned. List them
Sources and methods
Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.