Michael R. Wigley

Sontra Medical Corporation engages in the development of transdermal diagnostic and drug delivery products based on its SonoPrep ultrasonic skin permeation technology. SonoPrep is a noninvasive ultrasonic skin permeation technology for medical and therapeutic applications, including transdermal diagnostics and the delivery of drugs through the skin

Great Plains Cos., Inc. provides wood and lumber products. They are structural wood members. It also provides construction services. The company was founded in 1989 and is headquartered in Oakdale, MN.

Echo Therapeutics, Inc. is a medical device company, which engages in the development of non-invasive, and wireless continuous glucose monitoring system for use in the diabetes outpatient market. It offers needle-free skin preparation device as a platform technology that allows for enhanced skin permeation enabling extraction of analytes, such as glucose and delivery of topical pharmaceuticals. The company was founded in 1989 and is headquartered in Iselin, NJ.