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NUBURU Receives Patents for Blue Laser Welding and Multi-kilowatt Blue Lasers

NUBURU, Inc. (“NUBURU” or the “Company”) (NYSE American: BURU), a leading innovator in high-power and high-brightness industrial blue laser technology, today announced that it has received additional patents that expand its intellectual property portfolio, broadly covering blue lasers for use in welding and other applications.

This press release features multimedia. View the full release here:

Compares welding using NUBURU’s base laser in the three different applications with welding performed using existing alternative methods. (Graphic: Business Wire)

Compares welding using NUBURU’s base laser in the three different applications with welding performed using existing alternative methods. (Graphic: Business Wire)

“These new patents expand our broad patent estate around blue lasers, particularly for welding copper and other metals,” said Dr. Mark Zediker, CEO and Co-Founder of NUBURU. “These patents also cover technologies like multi-kilowatt class blue lasers that have significant advantages compared to infrared lasers available from industry incumbents.”

NUBURU believes that its intellectual property provides strong protection to NUBURU’s blue laser technology and processes. Despite the significant advantages and efficiencies of blue lasers, major incumbents IPG Photonics (NYSE: IPGP), Coherent (NYSE: COHR), Lumentum (NASDAQ: LITE), and nLIGHT (NASDAQ: LASR) have not released an industrial blue laser, relying on infrared technology instead.

On March 28, 2023, the U.S. Patent and Trademark Office (USPTO) granted NUBURU’s patent for “Methods and systems for welding copper and other metals using blue lasers” (US Patent 11,612,957). This patent describes NUBURU’s blue laser technology and processes for welding multiple metal types and alloys including copper, aluminum, and stainless steel. The Company believes this patent provides technology and processes for more efficiently manufacturing batteries for electric vehicles, cell phones, and other electronic devices.

On April 14, 2023, the European Patent Office (EPO) granted NUBURU’s patent for “Multi KW Class Blue Laser System” (European Patent EP 3704772). As explained in the patent, “embodiments of the present inventions relate to a multi-kW-class blue fiber-coupled laser systems used for materials processing and laser welding applications, and in particular wavelengths in the wavelength range of about 400 nm to about 495 nm.” This unique beam combination methodology results in a laser source that is ideal for 3D printing applications as well as welding copper and other materials for building electric vehicles, cell phones, and other electronic products.

As of March 31, 2023, NUBURU has 190+ granted and pending patent applications throughout the world. The granted patents and pending applications cover all aspects of NUBURU’s technology and processes. NUBURU continues to prosecute the pending applications through to granted patents across multiple geographies to further protect NUBURU’s innovative and novel technology and processes for use in what NUBURU estimates to be a multi-billion-dollar serviceable addressable market (SAM).1


Founded in 2015, NUBURU, Inc. (NYSE American: BURU) is a developer and manufacturer of industrial blue lasers that leverage fundamental physics and their high-brightness, high-power design to produce faster, higher quality welds and parts than current lasers can provide in laser welding and additive manufacturing of copper, gold, aluminum and other industrially important metals. NUBURU’s industrial blue lasers produce minimal to defect-free welds that are up to eight times faster than the traditional approaches — all with the flexibility inherent to laser processing. For more information, please visit

Forward-Looking Statements

This press release contains certain “forward-looking statements” within the meaning of the United States Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including certain projections on market size and growth and application of NUBURU’s blue laser. All statements other than statements of historical fact contained in this press release may be forward-looking statements. Some of these forward-looking statements can be identified by the use of forward-looking words, including “may,” “should,” “expect,” “intend,” “will,” “estimate,” “anticipate,” “believe,” “predict,” “plan,” “seek,” “targets,” “projects,” “could,” “would,” “continue,” “forecast” or the negatives of these terms or variations of them or similar expressions. All forward-looking statements are subject to risks, uncertainties, and other factors which could cause actual results to differ materially from those expressed or implied by such forward-looking statements. All forward-looking statements are based upon estimates, forecasts and assumptions that, while considered reasonable by NUBURU and its management, are inherently uncertain and many factors may cause the Company’s actual results to differ materially from current expectations which include, but are not limited to: (1) the ability to continue to meet the security exchange’s listing standards; (2) failure to achieve expectations regarding its product development and pipeline; (3) the inability to access sufficient capital to operate as anticipated; (4) the inability to recognize the anticipated benefits of the business combination, which may be affected by, among other things, competition, the ability of the company to grow and manage growth profitably, maintain relationships with customers and suppliers and retain its management and key employees; (5) changes in applicable laws or regulations; (6) the possibility that NUBURU may be adversely affected by other economic, business and/or competitive factors; (7) the inability to obtain financing from Lincoln Park Capital; (8) volatility in the financial system and markets caused by geopolitical and economic factors; (9) changes in client preferences and needs; and (10) other risks and uncertainties set forth in the sections entitled “Risk Factors” and “Cautionary Note Regarding Forward-Looking Statements” in NUBURU’s most recent periodic report on Form 10-K or Form 10-Q and other documents filed with the Securities and Exchange Commission from time to time. These filings identify and address other important risks and uncertainties that could cause actual events and results to differ materially from those contained in the forward-looking statements. Nothing in this press release should be regarded as a representation by any person that the forward-looking statements set forth herein will be achieved or that any of the contemplated results of such forward-looking statements will be achieved. You should not place undue reliance on forward-looking statements, which speak only as of the date they are made. NUBURU does not give any assurance that it will achieve its expected results. NUBURU assumes no obligation to update or revise these forward-looking statements, whether as a result of new information, future events or otherwise, except as otherwise required by applicable law.


1 See Slide 16 from NUBURU December Investor Presentation, available here.

2 Note: Compares welding using NUBURU’s base laser in the three different applications with welding performed using existing alternative methods. See Slide 28 from NUBURU December Investor Presentation, available here.

3 Note: Represents density relative to forged copper. See Slide 44 from NUBURU December Investor Presentation, available here.


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