MANUFACTURING

Patent Trees for Corning Tropel (formerly Tropel Corporation)

Improving Measurement Accuracy and Speed Using Optical,
Noncontact Technology

A Patent Tree is a graphical display of knowledge dissemination from patented technological advances produced during an ATP-funded project. Some companies file for and are granted patents derived from their ATP project. Many of these patents are later referenced by other companies, thereby increasing the potential impact of the ATP project to propel the technology forward.


Patent trees for Status Report 95-01-0022 were generated during February 2006.

		Patent Trees Listed by:
	Patent		Patent Number	Company
·	"Diffraction management for grazing incidence interferometer" (No. 5,719,676: filed April 12, 1996; granted February 17, 1998)		5,719,676	Tropel Corporation
·	"Object fixturing in interferometer" (No. 5,684,594: filed April 18, 1996; granted November 4, 1997)		5,684,594	Tropel Corporation
·	"Fringe pattern discriminator for interferometer using diffraction gratings" (No. 5,724,137: filed June 27, 1996; granted March 3, 1998)		5,724,137	Tropel Corporation
·	"Interferometric measurement of toric surfaces at grazing incidence" (No. 5,889,591: filed October 17,1996; granted March 30, 1999)		5,889,591	Tropel Corporation
·	"Interferometric measurement of absolute dimensions of cylindrical surfaces at grazing incidence" (No. 5,777,738: filed March 17, 1997; granted July 7, 1998)		5,777,738	Tropel Corporation