Inventor
KOWALSKI ANGELA S
US4 patents
⚠️ This page may combine multiple inventors who share the name “KOWALSKI ANGELA S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NALCO CHEMICAL CO
2 patentsUS6258277B1Jul 10, 2001
Composition and method for simultaneously precipitating metal ions from semiconductor wastewater and enhancing microfilter operation
NALCO CHEMICAL CO43 citations91
US6140130AOct 31, 2000
Detection and removal of copper from wastewater streams from semiconductor and printed circuit board processing
NALCO CHEMICAL CO12 citations72