Inventor · disambiguated record
Hans Kramb
Also filed as: KRAMB HANS
3 granted patents·11 citations·filing 1974–1976
61Inventor score
Technology areasC09B
Files withBAYER AG3
Top patents by PatentIndex Score
3 records- 0159US4009156AHydroxynaphthalene trisazo dyestuffsBAYER AG·Filed 1975·Granted Feb 22, 1977·6 cites·3 claims
- 0255US4089851ASulfo containing disazo dyestuffs derived from diazotized 4,4'-diaminobenzanilide, a 1-phenyl-3-methyl-5-aminopyrazole coupler and a second couplerBAYER AG·Filed 1976·Granted May 16, 1978·5 cites·1 claims
- 0325US4008215ASulfonic-acid substituted disazo dyestuffsBAYER AG·Filed 1974·Granted Feb 15, 1977·0 cites·1 claims
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