Inventor · disambiguated record
Hans Von Tobel
Also filed as: TOBEL HANS VON · VON TOBEL HANS · VON TOBEL HANS R · VON TOBEL HANS-RUDOLF
7 granted patents·39 citations·filing 1974–1992
82Inventor score
Top patents by PatentIndex Score
7 records- 0184US4213897ADisazo and trisazo compounds having a 3-pyridinium or substituted pyridinium-4-methyl-6-hydroxypyridone-2 coupling component radicalSANDOZ AG·Filed 1978·Granted Jul 22, 1980·13 cites·51 claims
- 0280US4046502ABasic disazo dyes having two 2-hydroxy-3-substituted carbamoylnaphthyl-1-azophenyl groups for dyeing paperSANDOZ LTD·Filed 1975·Granted Sep 6, 1977·11 cites·18 claims
- 0357US4000158APhthalocyanine compoundsSANDOZ LTD·Filed 1974·Granted Dec 28, 1976·4 cites·5 claims
- 0454US4699626AMixtures of copper complexes of disazo compounds: 4,4'-(3,3'-dihydroxybiphenylene) tetrazo component and disulfonaphthol and 3-sulfo-6-(2'-chloro-4'-chloro or hydroxy-1,3,5-triazin-6'-ylamino)-naphth-1-ol coupling componentSANDOZ LTD·Filed 1986·Granted Oct 13, 1987·5 cites·20 claims
- 0549US5095101A1-Amino-2,7-di-[5'-(2"-chloro-4"-substituted amino-1,3,5-triazin-6"-ylamino)-2'-sulfophenylazo]-3,6-disulfonic acidsSANDOZ LTD·Filed 1988·Granted Mar 10, 1992·4 cites·18 claims
- 0633US4843152ACopper complexes of disazo compounds having di- or tri- sulfonaphthol and 6-[2,4-di-(amino or substituted amino)-1,3,5-triazia-6-ylamino-]-1-hydroxy-3-sulfonaphthalene coupling component radicalsSANDOZ LTD·Filed 1987·Granted Jun 27, 1989·1 cites·16 claims
- 0728US5188640AUse of 1-amino-2,7-di-[5'-((2"-chloro-4"-substituted amino-1,3,5-triazin-6-ylamino)-2'-sulfophenylazo]-8-hydroxynaphthalene-3,6-disulfonic acids for dyeing and printingSANDOZ LTD·Filed 1992·Granted Feb 23, 1993·1 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →