Drawing instruments; Drawing instruments, namely, for making designs

Purifiers and filters for removing contaminants from slurries

Chemicals used in chemical mechanical planarization processing for cleaning and removing particles and impurities after polishing for use in the semiconductor manufacturing industry

Chemical compositions for use in removing microelectronics manufacturing fabrication materials from microelectronic products such as wafers

Chemicals used in chemical mechanical planarization processing for cleaning and removing particles and impurities after polishing

Machine parts for semiconductor machinery, namely, brush rollers for removing detritus from polished surfaces of silicon wafers after planarization