lighting optimized


Altair and ilumisys successfully enforce LED lighting technology patent

DETROIT - Altair Engineering, parent company of LED lighting developer ilumisys, has been granted a judgment and permanent injunction against High Tech Global Group Co., Ltd. (HTGG), a Taiwanese manufacturer. Altair brought action against the company when it discovered HTGG was infringing upon Altair’s patent for LED-driven replacement lighting for fluorescent lamps.

In an order handed down February 29, Judge Denise Page Hood in the U.S. District Court, Eastern District of Michigan (Southern Division) ruled HTGG infringed upon Altair’s patent for LED lighting and granted the company’s motion to permanently enjoin HTGG and its distributors from “marketing, advertising, publicly displaying, offering to sell, selling, using, and/or manufacturing in the United States, or importing into the United States, its current product-line of LED powered replacement light tubes to be used with fluorescent lighting fixtures.” Judge Hood also granted Altair’s request to retain jurisdiction over the case.

About ilumisys

ilumisys, Inc. is a Troy, Michigan-based company focused on next-generation solid-state lighting technology. The company was formed in 2007 as a spinoff venture and wholly owned subsidiary of Altair Engineering, Inc. Initial products will be derived from Altair's intellectual property as they relate to the direct replacement of fluorescent light tubes with light-emitting diode (LED) lamps and direct replacement of incandescent lamps. For more information, please visit

About Altair

Altair Engineering, Inc. empowers client innovation and decision-making through technology that optimizes the analysis, management and visualization of business and engineering information. Privately held with more than 1,300 employees, Altair has offices throughout North America, South America, Europe and Asia/Pacific. With a 20-year-plus track record for enterprise analytics, product development, and advanced computing, Altair consistently delivers a competitive advantage to customers in a broad range of industries. To learn more, please visit

Dave Simon
ilumisys, Inc.
248-614-2400 ext. 332

Bill Wolfson
Landau Public Relations

Find A Retailer

Already know what you're looking for? Find a retailer or visit the toggled store.

Purchase LED lamps >

Where Do I Start?

Start with us! We can help you
decide which products are the
right fit for your project and provide expert support at any stage.