Tag: Direct Lithium Extraction
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Schlumberger filed nine U.S. lithium patents in 2025. Exxon just produced its first battery-grade lithium. The oilfield is becoming the lithium field, and the patent docket has been telling the story since 2022.
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Schlumberger and Halliburton just spent 2025 patenting downhole NMR and pulsed-neutron tools tuned for lithium-7. The DLE race is being won by oilfield services contractors, not chemistry startups.