OPTRA
Filed: March 27, 1986
TWO-FREQUENCY LASERS AND LASER-BASED METROLOGY INSTRUMENTATION
Owned by: OPTRA, INC.
Serial Number: 73590158
OPTRALITE
Filed: March 27, 1986
TWO-FREQUENCY LASER FOR METROLOGY
Owned by: OPTRA, INC.
Serial Number: 73590159
NANOSCALE
Filed: November 6, 1992
read-out head and linear encoder, or rotary encoder (electro-optical)
Owned by: OPTRA, INC.
Serial Number: 74328733
OPTRA
Filed: October 10, 1995
two-frequency lasers and laser-based metrology instrumentation
Owned by: OPTRA, INC.
Serial Number: 75003475
OPTRALITE
Filed: October 10, 1995
two-frequency lasers; laser-based metrology instruments
Owned by: OPTRA, INC.
Serial Number: 75003476
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
NANOARC
Filed: March 1, 1996
high resolution angle encoder using a laser diode light source and a triphase signal processing algorithm for use in measuring…
Owned by: OPTRA, INC.
Serial Number: 75065906
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
