OPTRA, Inc. Trademarks
POLARFLASH
Filed: February 20, 1996
analog to digital converter for phase processing
Owned by: OPTRA, Inc.
Serial Number: 75059657
NANOGRID
Filed: February 20, 1996
two-dimensional grating and planar metrology systems for use in measuring dual-axis in-plane displacements, comprising a…
Owned by: OPTRA, Inc.
Serial Number: 75059829
NANOSCALE
Filed: March 1, 1996
high resolution linear encoder using a laser diode light source and a triphase signal processing algorithm for use in measuring…
Owned by: OPTRA, Inc.
Serial Number: 75066031
OPTRA
Filed: January 15, 2004
Two frequency lasers and laser based metrology instrumentation
Owned by: OPTRA, Inc.
Serial Number: 78352398
