Don DeWalch learns of opportunity for an improved locking system and collaborates with Binz DeWalch who begins development

DeWalch Technologies, Inc. chartered with the Secretary of State of Texas

Patent 4,742,703 "Cylinder Lock and Key with Rotating Elements" issued to Binz and Don DeWalch

First Manufacturing Plant purchased

First large scale delivery of products to Houston Lighting and Power

First international sales to Mexico electric utility Comisión Federal de Electricidad

Biotech division created to address needs for better automation in Life Sciences Market

Development of Gas to Liquids technology begins

Move to Larger Facility

Next generation Electronic Lock and Key introduced to Electric Utility Market