Inventor
SPRINTSCHNIK GERHARD
13 patents
⚠️ This page may combine multiple inventors who share the name “SPRINTSCHNIK GERHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOECHST AG
9 patentsUS4689272AAug 25, 1987
Process for a two-stage hydrophilizing post-treatment of aluminum oxide layers with aqueous solutions and use thereof in the manufacture of supports for offset printing plates
HOECHST AG238 citations96
US4288520ASep 8, 1981
Process of manufacturing light-sensitive copying material based on diazonium salt condensation products
HOECHST AG31 citations91
US4566952AJan 28, 1986
Two-stage process for the production of anodically oxidized aluminum planar materials and use of these materials in manufacturing offset-printing plates
HOECHST AG42 citations88
US4945004AJul 31, 1990
Base material for an aluminum offset printing plate
HOECHST AG17 citations78
US4395480AJul 26, 1983
Developer mixture and process for developing exposed negative-working diazonium salt layers
HOECHST AG16 citations73
US4339530AJul 13, 1982
Developer mixture for developing exposed light-sensistive copying layers
HOECHST AG14 citations73
US4655136AApr 7, 1987
Sheet material of mechanically and electrochemically roughened aluminum, as a support for offset-printing plates
HOECHST AG18 citations71
US5009722AApr 23, 1991
Process for producing base material for an aluminum offset printing plate
HOECHST AG9 citations68
US4605480AAug 12, 1986
Device for continuously anodically oxidizing aluminum strips on one surface thereof and use of these aluminum strips in the production of offset printing plates
HOECHST AG4 citations61