CT

Chao H. Tzeng

IT ITRI: 1 patents #5,197 of 9,619Top 55%
Overall (All Time): #3,892,498 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5075194 Positive photoresist composition containing 4,4-diester, 4,5-diester, or 5,5-diester of spiroglycol and 1-oxo-2-diazonaphthalene-5-sulfonic acid chloride Jong-Min Liu 1991-12-24