13 patents currently held
3 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.
The next term ends in May 2028. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
3
Ending by 2030
May 2028
Next term end
13
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 Aug 2033 · High confidence
Also notable
Ends Sep 2032 · High confidence
Also notable
Ends May 2035 · High confidence
Gradational Insertion of an Artificial Lift System into a Live Wellbore
US 9,080,412
The most cited patent in this portfolio, cited by 57 later US patents, top 10% of utility patents granted in 2015 in our data. Protection runs to 2033.
Fiber-Optic Monitoring Cable
US 9,250,120
Cited by 29 later US patents, top 25% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. Protection runs to 2032.
Integrated Circuit for NMR Systems
US 10,295,636
Cited by 10 later US patents, top 25% of utility patents granted in 2019 in our data. Protection runs to 2035.
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 21, 2026The maintenance fee for Integrated Circuit for NMR Systems (US 10,295,636) comes due Nov 21, 2026. Unpaid by May 21, 2027, it lapses early.
- 1 fee due Jan 14, 2027The maintenance fee for Gradational Insertion of an Artificial Lift System into a Live Wellbore (US 9,080,412) comes due Jan 14, 2027. Unpaid by Jul 14, 2027, it lapses early.
- 2 fees due Apr 3 to 6, 2027 · next Apr 3
- 1 fee due Jun 3, 2027The maintenance fee for Solid-Core Filament-Wound Composite Mandrel (US 10,494,893) comes due Jun 3, 2027. Unpaid by Dec 3, 2027, it lapses early.
- 1 fee due Aug 2, 2027The maintenance fee for Fiber-Optic Monitoring Cable (US 9,250,120) comes due Aug 2, 2027. Unpaid by Feb 2, 2028, it lapses early.
- 1 fee due Sep 22, 2027The maintenance fee for Seal Around Braided Cable (US 9,291,026) comes due Sep 22, 2027. Unpaid by Mar 22, 2028, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
What they patent
The 5 largest of its 13 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Method for Removing the Effect of Near Surface Galvanic Distortion in Surface to Borehole Em Measurements | 1 in force | to Jan 2040 |
| Marine Vibrator Directive Source Survey | 1 in force | to Jul 2036 |
| Integrated Circuit for NMR Systems | 1 in force | to May 2035 |
| Fiber-Optic Monitoring Cable | 1 in force | to Sep 2032 |
| Power Transmission System for Use with Downhole Equipment | 1 in force | to May 2029 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,958,949 | Method and Apparatus for Three Dimensional Geosteering held by Schlumberger Technology Corporation, Schlumberger Canada Limited, Services Petroliers Schlumberger, Schlumberger Holdings Limited, Schlumberger Technology B.V. and Prad Research and Development Limited In force · High confidence | In force | High confidence | |
| US 7,830,745 | Identifying the Q-Factor Using Microseismic Event Generated S-Coda Waves held by Schlumberger Technology Corporation, Schlumberger Canada Limited, Services Petroliers Schlumberger, Schlumberger Holdings Limited, Schlumberger Technology B.V. and Prad Research and Development Limited In force · High confidence | In force | High confidence | |
| US 8,353,336 | Power Transmission System for Use with Downhole Equipment In force · High confidence | In force | High confidence | |
| US 8,408,312 | Compact Cable Suspended Pumping System for Dewatering Gas Wells In force · High confidence | In force | High confidence | |
| US 9,250,120 | Fiber-Optic Monitoring Cable held by Schlumberger Technology Corporation, Schlumberger Canada Limited, Services Petroliers Schlumberger, Schlumberger Holdings Limited, Schlumberger Technology B.V. and Prad Research and Development Limited In force · High confidence | In force | High confidence | |
| US 9,080,412 | Gradational Insertion of an Artificial Lift System into a Live Wellbore In force · High confidence | In force | High confidence | |
| US 9,151,131 | Power and Control Pod for a Subsea Artificial Lift System In force · High confidence | In force | High confidence | |
| US 9,291,026 | Seal Around Braided Cable In force · Medium confidence | In force | Medium confidence | |
| US 10,295,636 | Integrated Circuit for NMR Systems held by Schlumberger Technology Corporation, Schlumberger Canada Limited, Services Petroliers Schlumberger, Schlumberger Holdings Limited, Prad Research and Development Limited and Schlumberger Technology B.V. In force · High confidence | In force | High confidence | |
| US 11,774,618 | Marine Vibrator Directive Source Survey In force · Medium confidence | In force | Medium confidence |
Also on record, not counted in the 13: 3 patents in force now held by others · 5 patents ended · 1 application pending · 4 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.