Roanoke Times
Copyright (c) 1995, Landmark Communications, Inc.
DATE: SUNDAY, June 26, 1994 TAG: 9407220146
SECTION: BUSINESS PAGE: F1 EDITION: METRO
SOURCE:
DATELINE: LENGTH: Short
INNOTECH PATENTS
Innotech founder ronald D. Blum holds eight patents and has another eight
patents pending to cover his invention, Excalibur, and the process of making
plastic multifocal or progressive lenses from a preformed lens.