TUFTRAN
Filed: December 17, 1990
polycrystalline materials; namely, zinc selenide and/or zinc sulfide, used in the manufacture of infrared optics where such…
Owned by: HELLMA MATERIALS GMBH
Serial Number: 74124233
CLEARTRAN
Filed: July 8, 1991
polycrystalline materials; namely, zinc selenide and/or zinc sulfide, used in the manufacture of infrared optics
Owned by: HELLMA MATERIALS GMBH
Serial Number: 74182805
CVD ZINC SULFIDE
Filed: September 26, 1991
polycrystalline materials; namely, zinc selenide and/or zinc sulfide, used in the manufacture of infrared and/or reflective…
Owned by: HELLMA MATERIALS GMBH
Serial Number: 74206857
CVD ZINC SELENIDE
Filed: July 26, 1996
polycrystalline materials, namely, zinc selenide used in the manufacture of infrared optics
Owned by: HELLMA MATERIALS GMBH
Serial Number: 75140530
