Inventor
UNGERMANN CHARLES B
US4 patents
⚠️ This page may combine multiple inventors who share the name “UNGERMANN CHARLES B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ENGELHARD CORP
2 patentsUS5008226AApr 16, 1991
Process for making acid activated bleaching earth using high susceptibility source clay and novel bleaching earth product
ENGELHARD CORP75 citations94
US5008227AApr 16, 1991
Process for making acid activated bleaching earth using high susceptibility source clay and novel bleaching earth product
ENGELHARD CORP29 citations90