Inventor

PFEIFFER HANS

DE4 patents

⚠️ This page may combine multiple inventors who share the name “PFEIFFER HANS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HENKEL KGAA

2 patents

US4142999AMar 6, 1979

Stabilized liquid enzyme containing compositions

HENKEL KGAA51 citations89

US4820517AApr 11, 1989

Process for obtaining a pepper extract with insecticidal activity

HENKEL KGAA14 citations72

IBM

1 patent

US5935739AAug 10, 1999

Manufacturing method for membrane lithography mask with mask fields

IBM19 citations91

HOECHST AG

1 patent

US3977091AAug 31, 1976

Tempering and sterilizing device

HOECHST AG23 citations78