Dallas plays host to light-emitting diode, or LED, founder Dr. James R. Biard. But when Biard filed the patent for LED in 1961, he only earned a buck. That’s certainly not a lot, especially considering LEDs are one of today’s most energy-efficient lighting technologies. But it didn’t stop the Texas A&M University adjunct professor from filing 72 more patents in his now 60-plus year career in electrical engineering, including the optical isolator, the Schottky transistor, and metal oxide semiconductor read-only memory. Hear him speak on the importance of sophisticated technologies and companies coming together to revolutionize and develop the engineering industry at 3 p.m. Monday, May 1, at Southern Methodist University’s Palmer Conference Center (3145 Dyer St.) for its second installment of the Distinguished Speaker Series. An RSVP is required by Thursday, April 27. For more information, visit the event’s Facebook page.