Robert P. Cummins

LivaNova USA, Inc. engages in the design, development, sales, and marketing of implantable medical devices. It operates through providing neuromodulation therapy, vagus nerve stimulation therapy (VNS Therapy) for the treatment of refractory epilepsy, and treatment-resistant depression (TRD). The company was founded in 1987 and is headquartered in Granbury, TX.

Sigma Circuits, Inc. was a manufacturer of printed circuit boards, backplane assemblies and subassemblies and flexible circuits. The customers of the company were original equipment manufacturers and contract manufacturers. The company's products were used in telecommunications, networking, computers, peripherals, medical and semiconductor equipment. The company was headqurtered in Santa Clara, CA.