Sparton Announces Issuance of Two US Patents on Electronics

Schaumburg, Ill. – January 9, 2019 – Sparton Corporation (NYSE:SPA) today announced the issuance of two patents to the Company by the United States Patent and Trademark Office. One for an invention that protects electronic circuits from electromagnetic fields and one for the invention of a high efficiency power amplifier.

Patent number 10,070,547 is an invention that protects electronic circuits and devices from radiated electromagnetic fields by using nickel phosphorus or nickel chromium material embedded within the layers of a printed circuit board to function as a filter. Tests on Sparton sonobuoys to meet Navy Electromagnetic Radiation to Ordnance (HERO) standards have demonstrated an ability to significantly reduce electronic circuit and device vulnerability.

Patent number 10,090,771 is an invention that improves switching mode power amplifiers. The improved design eliminates undesirable effects of finite transition time, provides higher efficiency, and is scalable. The amplifier also provides other performance advantages relative to conventional switching mode power amplifier designs. This invention made it possible to significantly improve the Navy’s AN/SSQ-125 sonobuoy.

“Sparton has an extensive and growing library of patents across a range of technologies,” said Jim Lackemacher, Group Vice President of the Engineered Components and Products Segment. “These two patents are important additions to that library as we move forward in a marketplace that is dynamic and increasingly more competitive. Sparton’s growing technological expertise allows us to provide the most innovative products to our customers.”

About Sparton Corporation

Sparton Corporation (NYSE:SPA), now in its 119th year, is a provider of complex and sophisticated electromechanical devices with capabilities that include concept development, industrial design, design and manufacturing engineering, production, distribution, field service, and refurbishment. The primary markets served are Medical & Biotechnology, Military & Aerospace, and Industrial & Commercial. Headquartered in Schaumburg, IL, Sparton currently has thirteen manufacturing locations and engineering design centers worldwide. Learn more at

Safe Harbor and Fair Disclosure Statement

Safe Harbor statement under the Private Securities Litigation Reform Act of 1995: To the extent any statements made in this release contain information that is not historical, these statements are essentially forward-looking and are subject to risks and uncertainties, including the difficulty of predicting future results, the regulatory environment, fluctuations in operating results and other risks detailed from time to time in Sparton’s filings with the Securities and Exchange Commission (SEC). The matters discussed in this press release may also involve risks and uncertainties concerning Sparton’s services described in Sparton’s filings with the SEC. In particular, see the risk factors described in Sparton’s most recent Form 10K and Form 10Q. Sparton assumes no obligation to update the forward-looking information contained in this press release.

Contact Information for Sparton:


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Sparton Corporation

Joseph McCormack, 847-762-5812