Inventor
PIASEK EDMUND J
US4 patents
⚠️ This page may combine multiple inventors who share the name “PIASEK EDMUND J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
STANDARD OIL CO INDIANA
3 patentsUS3985802AOct 12, 1976
Lubricating oils containing high molecular weight Mannich condensation products
STANDARD OIL CO INDIANA54 citations93
US4425245AJan 10, 1984
Benzene sulfonic acid modified aromatic Mannich products from alkyl phenols
STANDARD OIL CO INDIANA9 citations69
US4425249AJan 10, 1984
Benzene sulfonic acid catalyzed aromatic Mannich products from alkyl phenols
STANDARD OIL CO INDIANA6 citations56