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InvestorNewsBreaks – Standard Lithium Ltd. (TSX.V: SLI) (NYSE American: SLI) (FRA: S5L) Receives Notice of Allowance from USPTO for Two U.S. Patent Applications

Standard Lithium (TSX.V: SLI) (NYSE American: SLI) (FRA: S5L), an innovative precommercial lithium company, has received notification from the U.S. Patent and Trademark Office (“USPTO”) regarding two patent applications. The company announced that the USPTO had issued Notices of Allowance for the applications, which both involved a novel and proprietary technique process for recovering Direct Lithium Extraction (“DLE”) from brine. According to the announcement, the USPTO issues a Notice of Allowance after it has examined a patent application and determined that a patent should be granted; the formal registration of the patents should occur in the coming months. SLI has one additional patent still pending, which also covers its DLE processes. “The successful Notice of Allowance from the USPTO provides continued affirmation of the company’s lithium extraction technology and allows Standard Lithium to continue advancing its first commercial lithium extraction project with even greater certainty of intellectual property rights,” said Standard Lithium president Dr. Andy Robinson in the press release.

To view the full press release, visit

About Standard Lithium Ltd.

Standard Lithium is an innovative lithium company moving rapidly towards commercialization. The company’s flagship project is located in southern Arkansas, where it is engaged in the design of its first commercial lithium project, intended to be constructed on 150,000 acres of existing permitted brine operations. The company operates its first-of-a-kind, industrial-scale Direct Lithium Extraction (“DLE”) demonstration plant at Lanxess’s south plant facility in southern Arkansas. The demonstration plant utilizes the company’s DLE technology to selectively extract lithium from Lanxess’s tail brine. The demonstration plant is being used for definitive feasibility and commercial engineering design studies. The scalable, environmentally friendly process eliminates the use of evaporation ponds, reduces processing time from months to hours and greatly increases the effective recovery of lithium. SLI is also pursuing the development of more than 30,000 acres of separate brine leases located in southwest Arkansas, referred to as the South West Arkansas Lithium Project, and approximately 45,000 acres of mineral leases located in the Mojave Desert in San Bernardino County, California. For more information about the company, please visit

NOTE TO INVESTORS: The latest news and updates relating to SLI are available in the company’s newsroom at

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