Optichem Trademarks

OPTICHEM
Liquid flow controllers for use in manufacturing semiconductors
Cancelled  ·  September 16, 2003  ·  78300959  · 
OPTICHEM
Surface chemistries for use in the detection and analysis of chemical and biochemical analytes for scientific use
Cancelled  ·  May 2, 2000  ·  76039034  · 
optichem
OPTICHEM
COMBINATORIAL CHEMISTRY EQUIPMENT FOR USE IN PHARMACEUTICAL LABORATORIES, NAMELY, BLOCKS, TRAYS AND HOLDERS
Registered  ·  March 17, 2000  ·  76004055  · 
optichem
OPTICHEM 132
WATER LEAK TEST MATERIAL-NAMELY, A FLUORESCENT DIE
Cancelled  ·  May 30, 1974  ·  73022823  ·