Inventor · disambiguated record

Johann Wenghoefer

Also filed as: WENGHOEFER JOHANN

3 granted patents·22 citations·filing 1977–1980

67Inventor score

Technology areasC09B

Files withHOECHST CO AMERICAN3

Top patents by PatentIndex Score

3 records

0175US4283196AProcess for coloring fiber materials with azo dyestuff containing --SO2 CH2 CH2 OSO3 H and --N(CH2 CH2 OSO.sub. H)2 groupsHOECHST CO AMERICAN·Filed 1980·Granted Aug 11, 1981·12 cites·5 claims
0275US4271072AAzo dyestuffs containing -SO2 CH2 CH2 OSO3 H and -N(CH2 CH2 OSO3 H)2 groupsHOECHST CO AMERICAN·Filed 1979·Granted Jun 2, 1981·9 cites·2 claims
0334US4138395AWater soluble copper complex monoazo dyestuff based upon ortho-amino phenol-sulfonic acid and N-acetoacetyl compound of amino-benzene-β-hydroxy-ethylsulfone-sulfuric acid esterHOECHST CO AMERICAN·Filed 1977·Granted Feb 6, 1979·1 cites·1 claims

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